M. Hunger, Catalytically Active Sites: Generation and Characterization, in: J. Cejka, A. Corma, S. Zones (eds.), Zeolites and Catalysis: Synthesis, Reactions and Applications, Volume 2, Chapter 17, Wiley-VCH, Weinheim, 2010, ISBN: 978-3527325146, p. 493-546.
M. Hunger, Solid-State NMR Spectroscopy, in: A.W. Chester, E.G. Derouanne (eds.), Zeolite Characterization and Catalysis - a Tutorial, Chapter 2, Springer-Verlag, Berlin, 2009, ISBN: 978-1-4020-9678-5, p. 65-106.
M. Hunger, W. Wang, Solid-State NMR Spectroscopy, in: G. Ertl, H. Knoezinger, F. Schueth, J. Weitkamp (eds.), Handbook of Heterogeneous Catalysis, Volume 2, Chapter 3.1.3.7, 2nd Edition, Wiley-VCH, Weinheim, 2008, ISBN: 978-3-527-31241-2, p. 912-932.
M. Hunger, NMR Spectroscopy for the Characterization of Surface Acidity and Basicity, in: G. Ertl, H. Knoezinger, F. Schueth, J. Weitkamp (eds.), Handbook of Heterogeneous Catalysis, Volume 2, Chapter 3.2.4.4, 2nd Edition, Wiley-VCH, Weinheim, 2008, ISBN: 978-3-527-31241-2, p. 1163-1178.
J. Weitkamp, M. Hunger, Acid and Base Catalysis on Zeolites, in: J. Cejka, H. van Bekkum, A. Corma, F. Schueth (eds.), Introduction to Zeolite Molecular Sieves, 3rd Edition, Stud. Surf. Sci. Catal., Volume 168, Elsevier, Amsterdam, 2007, ISBN: 9780080550411, p. 787-835.
M. Hunger, J. Weitkamp, In situ Magnetic Resonance Techniques: Nuclear Magnetic Resonance, in: B.M. Weckhuysen (ed.), In situ Spectroscopy of Catalysts, American Scientific Publishers, Stevenson Ranch, California, 2004, ISBN: 978-1-4020-9678-5, p. 177-218.
M. Hunger, E. Brunner, Characterization I - NMR Spectroscopy, in: H.G. Karge, J. Weitkamp (eds.), Molecular Sieves - Science and Technology, Vol. 4, Springer-Verlag, Berlin, 2004, ISBN: 978-3-540-64335-7, p. 201-293.
H.G. Karge, M. Hunger, H. Beyer, Characterization of Zeolites - Infrared and Nuclear Magnetic Resonance Spectroscopy and X-Ray Diffraction, in: J. Weitkamp, L. Puppe (eds.), Catalysis and Zeolites - Fundamentals and Application, Springer-Verlag, Berlin, 1999, ISBN: 978-3-662-03764-5, p. 198-326.
M. Hunger, habilitation thesis, 1H MAS NMR investigations of adsorbents, University of Leipzig, Physics Department, Leipzig, 1991.
M. Hunger, PhD thesis, Application of rapid sample spinning for resolving the NMR spectra of acidic hydroxyl groups in aluminosilicates, Karl Marx University Leipzig, Physics Department, Leipzig, 1984.
2024
H. Koller, M. Hunger, Response of hydrogen-bonded Broensted acid sites in ZSM-5 to adsorption and H/D exchange of hydrocarbons, J. Phys. Chem. C 128 (2024) 8974-8982, DOI: 10.1021/acs.jpcc.4c01199.
2023
M. Gackowski, A. Selent, I. Ainasoja, M. Mazur, M. Hunger, J. Datka, V.-V. Telkki, Cleansing effect during the TBAOH treatment of ultra-stable zeolite Y, Microporous & Mesoporous Mater. 359 (2023) 112626, DOI: 10.1016/j.micromeso.2023.112626.
2022
Z. Wang, Y. Jiang, W. Yang, A. Li, M. Hunger, A. Baiker, J. Huang, Tailoring single site VO4 on flame-made V/Al2O3 catalysts for selective oxidation of n-butane, J. Catal. 413 (2022) 93-105, DOI: 10.1016/j.jcat.2022.06.013.
K. Sato, A. Yamamoto, M. Dyballa, M. Hunger, Molecular adsorption by biochar produced by eco-friendly low-temperature carbonation investigated using graphene structural reconfigurations, Green Chem. Lett. and Rev. 15 (2022) 287-295, DOI: 10.1080/17518253.2022.2048090.
Z. Wang, Y. Jiang, A. Baiker, M. Hunger, J. Huang, Promoting aromatic C-H activation through reactive Broensted acid-base pairs on penta-coordinated Al-enriched amorphous silica-alumina, J. Phys. Chem. Lett. 13 (2022) 486-491, DOI: 10.1021/acs.jpclett.1c03489.
2021
Z. Li, C. Rieg, A.-K. Beurer, M. Benz, J. Bender, C. Schneck, Y. Traa, M. Dyballa, M Hunger, Effect of aluminum and sodium on the adsorption of water and methanol in microporous MFI-type zeolites and mesoporous SBA-15 materials, Adsorption 27 (2021) 49-68, DOI: 10.1007/s10450-020-00275-8.
C. Rieg, D. Dittmann, Z. Li, D. Estes, M. Buchmeiser, M. Dyballa, M. Hunger, Noble metal distribution on porous supports determined by reaction with phosphines, Microporous & Mesoporous Mater. 310 (2021) 110594, DOI: 10.1016/j.micromeso.2020.110594.
Q. Lei, C. Wang, W. Dai, G. Wu, N. Guan, M. Hunger, L. Li, Tandem Lewis acid catalysis for the conversion of alkenes to 1,2-diol in the confined space of bifunctional TiSn-Beta zeolite, Chin. J. Catal. 42 (2021) 1176-1184, DOI: 10.1016/S1872-2067(20)63734-2.
P. Cnudde, E. A. Redekop, W. Dai, M. Waroquier, M. Hunger, L. Li, U. Olsbye, V. Van Speybroeck, Experimental and theoretical evidence for promotional effect of acid sites on the diffusion of alkenes through small-pore zeolites, Angew. Chem. Int. Ed. 60 (2021) 10016-10022, DOI: 10.1002/anie.202017025 and Angew. Chem. 133 (2021) 10104-10110, DOI: 10.1002/ange.20201702.
E. Frank, E. Muks, A. Ota, T. Herrmann, M. Hunger, M.R. Buchmeiser, Structure evolution in polyethylene-derived carbon fiber using a combined electron beam-stabilization-sulphurization approach, Macromol. Mater. Eng. 306 (2021) 2100280, DOI: 10.1002/mame.202100280.
Z. Wang, R. Buechel, Y. Jiang, L. Wang, H. Xu, P. Castignolles, M. Gaborieau, O. Lafon, J.-P. Amoureux, M. Hunger, A. Baiker, J. Huang, Engineering distinct structure-interface of sub-nano alumina domains on silica for acidic amorphous silica-alumina towards bio-refining, J. Am. Chem. Soc. Au 1 (2021) 262-271, DOI: 10.1021/jacsau.0c00083.
S. Lang, M. Dyballa, Y. Traa, D. Estes, E. Klemm, M. Hunger, Direct proof of volatile and adsorbed hydrocarbons on solid catalysts by complementary NMR methods, Chemie Ingenieur Technik 93 (2021) 1020-1023, DOI: 10.1002/cite.202000128.
B. Gehring, Y. Traa, M. Hunger, Elucidation of the versatile Broensted acidity of nanosized ZSM-5 materials, Microporous & Mesoporous Mater. 317 (2021) 110978, DOI: 10.1016/j.micromeso.2021.110978.
K. Sato, T. Orihara, M. Dyballa, M. Hunger, Instantaneous ex situ mineral carbonation relevant to alkali metals in clay nanoparticles, J. Phys. Chem. C 125 (2021) 4878-4884, DOI: 10.1021/acs.jpcc.0c11521.
2020
W. Dai, Q. Lei, G. Wu, N. Guan, M. Hunger, L. Li, Spectroscopic signature of Lewis acidic framework and extraframework Sn sites in Beta zeolites, ACS Catal. 10 (2020) 14135-14146, DOI: 10.1021/acscatal.0c02356.
Z. Wang, Y. Jiang, C. Stampfl, A. Baiker, M. Hunger, J. Huang, NMR spectroscopic characterization of flame-derived amorphous silica-alumina for cyclohexanol and glyceraldehyde conversion, ChemCatChem 12 (2020) 287-293, DOI: 10.1002/cctc.201901728.
R. Rachwalik, K. Gora-Marek, Z. Olejniczak, M. Hunger, B. Sulikowski, Tailoring selectivity in the liquid-phase isomerization of a-pinene on dealuminated ferrierite-type zeolites, Catal. Today 354 (2020) 141-150, DOI: 10.1016/j.cattod.2019.03.045.
M. Dyballa, C. Rieg, D. Dittmann, Z. Li, M. Buchmeiser, B. Plietker, M. Hunger, Potential of triphenylphosphine as solid-state NMR probe for studying the noble metal distribution on porous supports, Microporous & Mesoporous Mater. 293 (2020) 109778, DOI: 10.1016/j.micromeso. 2019.109778.
C. Schroeder, V. Siozios, C. Mueck-Lichtenfeld, M. Hunger, M. R. Hansen, H. Koller, Hydrogen bond formation of Broensted acid sites in zeolites, Chem. Mater. 32 (2020) 1564-1574, DOI: 10.1021/acs.chemmater.9b04714.
K. Sato, M. Hunger, Carbon dioxide adsorption in open nanospaces formed by overlap among clay nanosheets, Communications Chemistry 3 (2020) 91, DOI: 10.1038/s42004-020-00346-5.
C. Schroeder, V. Siozios, M. Hunger, M. R. Hansen, H. Koller, Disentangling Broensted acid sites and hydrogen-bonded SiOH groups in high-silica zeolite H-ZSM-5, J. Phys. Chem. C 124 (2020) 23380-23386, DOI: 10.1021/acs.jpcc.0c06113.
2019
Z. Wang, Y. Jiang, F. Jin, C. Stampfl, M. Hunger, A. Baiker, J. Huang, Strongly enhanced acidity and activity of amorphous silica-alumina by formation of pentacoordinated AlV species, J. Catal. 372 (2019) 1-7, DOI: 10.1016/j.jcat.2019.02.007.
P. Eversfield, T. Lange, M. Hunger, E. Klemm, Selective oxidation of o-xylene to phthalic anhydride on tungsten and tin promoted VOx on TiO2 monolayer catalysts, Catal. Today 333 (2019) 120-126, DOI: 10.1016/j.cattod.2018.04.025.
M. Gackowski, J. Podobinski, M. Hunger, Evidence for a strong polarization of n-hexane in zeolite H-ZSM-5 by FTIR and solid-state NMR spectroscopy, Microporous Mesoporous Mater. 273 (2019) 67-72, DOI: 10.1016/j.micromeso.2018.06.054.
Z. Wang, Y. Jiang, X. Yi, C. Zhou, A. Rawal, J. Hook, Z. Liu, F. Deng, A. Zheng, M. Hunger, A. Baiker, J. Huang, High population and dispersion of pentacoordinated AlV species on the surface of flame-made amorphous silica-alumina, Science Bulletin 64 (2019) 516-523, DOI: 10.1016/j.scib.2019.04.002.
K.D. Kim, Z. Wang, M. Hunger, J. Huang, The cooperative effect of Lewis acid and Broensted acid on Sn-MCM-41 catalysts for the conversion of 1,3-dihydroxyacetone to ethyl lactate, Green Chemistry 21 (2019) 3383-3393, DOI: 10.1039/C9GC00820a.
L. Yang, T. Yan, C. Wang, W. Dai, G. Wu, M. Hunger, W. Fan, Z. Xie, N. Guan, L. Li, Role of acetaldehyde in the roadmap from first carbon-carbon bonds to hydrocarbons during the methanol conversion, ACS Catal. 9 (2019) 6491-6501, DOI: 10.1021/acscatal.9b00641.
X. Zeng, Z. Wang, L. Wang, Y. Jiang, C. Stampfl, M. Hunger, J. Huang, Catalytic arene alkylation over H-Beta zeolite: Influence of zeolite shape selectivity and reactant nucleophilicity, J. Catal. 380 (2019) 9-20, DOI: 10.1016/j.jcat.2019.09.035.
T. Yan, L. Yang, W. Dai, G. Wu, N. Guan, M. Hunger, L. Li, Cascade conversion of acetic acid to isobutene over yttrium-modified siliceous Beta zeolites, ACS Catal. 9 (2019) 9726-9738, DOI: 10.1021/acscatal.9b02850.
2018
T. Yan, L. Yang, W. Dai, C. Wang, G. Wu, N. Guan, M. Hunger, L. Li, On the deactivation mechanism of zeolite catalyst in ethanol to butadiene, J. Catal. 367 (2018) 7-15, DOI: 10.1016/j.jcat.2018.08.019.
X. Hoan Vu, M. Hunger, U. Armbruster, A. Martin, Influence of the initial Si/Al ratio on the structural, acidic and catalytic properties of nanosized-ZSM-5/SBA-15 analog composites prepared from ZSM-5 precursors, J. Porous Mater. 25 (2018) 1035-1046, DOI: 10.1007/s10934-017-0514-y.
Z. Wang, H. Ling, J. Shi, C. Stampfl, A. Yu, M. Hunger, J. Huang, Acidity enhanced [Al]MCM-41 via ultrasonic irradiation for the Beckmann rearrangement of cyclohexanone oxime to epsilon-caprolactam, J. Catal. 358 (2018) 71-79, DOI: 10.1016/j.jcat.2017.11.013.
W. Dai, L. Yang, C. Wang, X. Wang, G. Wu, N. Guan, U. Obenaus, M. Hunger, L. Li, Effect of n-butanol cofeeding on the methanol to aromatics conversion over Ga-modified H-ZSM-5 and its mechanistic interpretation, ACS Catal. 8 (2018) 1352-1362, DOI: 10.1021/acscatal.7b03457.
P.M. Hauser, M. Hunger, M.R. Buchmeiser, Silica-supported molybdenum alkylidyne N-heterocyclic carbene catalysts: relevance of site isolation to catalytic performance, ChemCatChem 10 (2018) 1829-1834, DOI: 10.1002/cctc.201701654.
T. Yan, W. Dai, G. Wu, S. Lang, M. Hunger, N. Guan, L. Li, Mechanistic insights into one-step catalytic conversion of ethanol to butadiene over bifunctional Zn-Y/Beta zeolite, ACS Catal. 8 (2018) 2760-2773, DOI: 10.1021/acscatal.8b00014.
E. Yuan, W. Dai, G. Wu, N. Guan, M. Hunger, L. Li, Facile synthesis of Sn-containing MFI zeolites as versatile solid acid catalysts, Microporous Mesoporous Mater. 270 (2018) 265-273, DOI: 10.1016/j.micromeso.2018.05.032.
Z. Wang, Y. Jiang, Y. Zhang, J. Shi, C. Stampfl, M. Hunger, J. Huang, Identification of vicinal silanols and promotion of their formation on MCM-41 via ultrasonic assisted one-step room-temperature Synthesis for Beckmann Rearrangement, Industrial & Engineering Chemistry Research 57 (2018) 5550-5557, DOI: 10.1021/acs.iecr.8b00274.
2017
S. Greiser, P. Sturm, G.J.G. Gluth, M. Hunger, C. Jaeger, Differentiation of gel, zeolites and various water species in geopolymer-zeolite composites, Ceramics International 43 (2017) 2202-2208, DOI: 10.1016/j.ceramint.2016.11.004.
U. Obenaus, G. Althoff-Ospelt, S. Lang, R. Himmelmann, M. Hunger, Separation of anti-phase signals due to para-hydrogen induced polarization via 2D nutation NMR spectroscopy, ChemPhysChem 18 (2017) 455-458, DOI: 10.1002/cphc.201601227.
W. Dai, G. Cao, L. Yang, X. Yang, G. Wu, M. Dyballa, M. Hunger, N. Guan, L. Li, Insights into the catalytic cycle and deactivation of methanol-to olefin conversion over low-silica AlPO-34 zeolites with controlable Broensted acid density, Catal. Sci. Technol. 7 (2017) 607-618, DOI: 10.1039/c6cy02564a.
U. Obenaus, S. Lang, R. Himmelmann, M. Hunger, In situ MAS NMR investigation of parahydrogen induced hyperpolarization inside meso- and micropores of Ir-, Pt-, Rh-, and Pd-containing solid catalysts, J. Phys. Chem. C 121 (2017) 9953-9962, DOI: 10.1021/acs.jpcc.7b01899.
S. Lang, M. Benz, U. Obenaus, R. Himmelmann, M. Scheibe, E. Klemm, J. Weitkamp, M. Hunger, Mechanisms of the AlCl3 modification of siliceous microporous and mesoporous catalysts investigated by multi-nuclear solid-state NMR, Top. Catal. 60 (2017) 1537-1553, DOI: 10.1007/s11244-017-0837-6.
K. Sato, M. Hunger, Molecular studies of Cs adsorption sites in inorganic layered materials: the influence of solution concentration, PhysChemChemPhys 19 (2017) 18481-18486, DOI: 10.1039/c7cp02814h.
H. Koller, T. Uesbeck, M. R. Hansen, M. Hunger, First and second neighbors of Broensted and Lewis acid sites in zeolites and the distribution of 27Al quadrupolar coupling, analyzed by 1H{27Al} offset REAPDOR, J. Phys. Chem. C 121 (2017) 25930-25940, DOI: 10.1021/acs.jpcc.7b09544.
2016
M. Dyballa, P. Becker, D. Trefz, E. Klemm, A. Fischer, H. Jacob, M. Hunger, Parameters influencing the selectivity to propene in the MTO conversion on 10-ring zeolites: Directly synthesized silicoalumino-type zeolites ZSM-5, ZSM-11, and ZSM-22, Appl. Catal. A: General 510 (2016) 233-243, DOI: 10.1016/j.apcata.2015.11.017.
K. Sato, K. Fujimoto, W. Dai, M. Hunger, Quantitative elucidation of Cs adsorption sites in Clays: Toward sophisticated decontamination of radioactive Cs, J. Phys. Chem. C 120 (2016) 1270-1274, DOI: 10.1021/acs.jpcc.5b09350.
U. Obenaus, F. Neher, M. Scheibe, M. Dyballa, S. Lang, M. Hunger, Relationships between the hydrogenation and dehydrogenation properties of Rh-, Ir-, Pd-, and Pt-containing zeolites Y studied by in situ MAS NMR spectroscopy and conventional heterogeneous catalysis, J. Phys. Chem. C 120 (2016) 2284-2291, DOI: 10.1021/acs.jpcc.5b11367.
K.D. Kim, S. Pokhrel, Z. Wang, H. Ling, C. Zhou, Z. Liu, M. Hunger, L. Maedler, J. Huang, Tailoring high-performance Pd catalysts for chemoselective hydrogenation reactions via optimizing the parameters of the double-flame spray pyrolysis, ACS Catal. 6 (2016) 2372-2381, DOI: 10.1021/acscatal.6b00396.
W. Dai, C. Wang, B. Tang, G. Wu, N. Guan, Z. Xie, M. Hunger, L. Li, Lewis Acid catalysis confined in zeolite cages as a strategy for sustainable heterogeneous hydration of epoxides, ACS Catal. 6 (2016) 2955-2964, DOI: 10.1021/acscatal.5b02823.
H. Koller, S. Senapati, J. Ren, T. Uesbeck, V. Siozios, M. Hunger, R.F. Lobo, Post-synthetic conversion of borosilicate zeolite Beta into an aluminosilicate with isolated acid sites: A quantitative distance analysis by solid state NMR, J. Phys. Chem. C 120 (2016) 9811-9820, DOI: 10.1021/acs.jpcc.6b01680.
S. Lang, M. Benz, U. Obenaus, R. Himmelmann, M. Hunger, Novel approach for the characterization of Lewis acidic solid catalysts by solid-state NMR spectroscopy, ChemCatChem 8 (2016) 2031-2036, DOI: 10.1002/cctc.201600372.
M. Dyballa, U. Obenaus, M. Rosenberger, A. Fischer, H. Jakob, E. Klemm, M. Hunger, Postsynthetic improvement of H-ZSM-22 zeolites for the methanol-to-olefin conversion, Microporous Meosoporous Mater. 233 (2016) 26-30, DOI: 10.1016/j.micromeso.2016.06.044.
S. Greiser, M. Hunger, C. Jaeger, 29Si{27Al}TRAPDOR MAS NMR to distinguishes Qn(mAl) sites in alumosilicates. Test case: Faujasite-type zeolites, Solid State Nucl. Magn. Reson. 79 (2016) 6-10, DOI: 10.1016/j.ssnmr.2016.10.004.
2015
W. Dai, C. Wang, M. Dyballa, G. Wu, N. Guan, L. Li, Z. Xie, M. Hunger, Understanding the early stages of the methanol-to-olefin conversion on H-SAPO-34, ACS Catal. 5 (2015) 317-326, DOI: 10.1021/cs5015749.
Y. Jiang, J. Huang, M. Hunger, M. Maciejewski, A. Baiker, Comparative studies on the catalytic activity and structure of Cu-MOF and its precursor for alcoholysis of cyclohexene oxide, Catal. Sci. Technol. 5 (2015) 897-902, DOI: 10.1039/C4CY00916A.
L.T. Hoai Nam, T. Quang Vinh, N. Duc Hoa, M. Hunger, Synthesis and characterization of ZSM-5/SBA-15 composite material, Int. J. Nanotechnology 12 (2015) 466-474, DOI: 10.1504/IJNT.2015.067904.
W. Dai, M. Dyballa, G. Wu, L. Li, N. Guan, M. Hunger, Intermediates and dominating reaction mechanism during the early stages of the methanol-to-olefin conversion on H-SAPO-41, J. Phys. Chem. C 119 (2015) 2637-2645, DOI: 10.1021/jp5118757.
B. Tang, W. Dai, X. Sun, G. Wu, N. Guan, M. Hunger, L. Li, Mesoporous Zr-Beta zeolite prepared by post-synthesic strategy as a robust Lewis acid catalyst for the ring-opening aminolysis of epoxides, Green Chem. 17 (2015) 1744-1755, DOI: 10.1039/C4GC02116A.
Z. Wang, K.-D. Kim, C. Zhou, M. Chen, N. Maeda, Z. Liu, J. Shi, A. Baiker, M. Hunger, J. Huang, Influence of support acidity on the performance of Pt nanoparticles in the chemoselective hydrogenation of acetophenone over Pt/[Al]MCM-41, Catal. Sci. Technol. 5 (2015) 2788-2797, DOI: 10.1039/c5cy00214a.
B. Tang, W. Dai, X. Sun, G. Wu, N. Guan, L. Li, M. Hunger, Incorporation of cerium atoms into Al-free beta zeolite framework for catalytic application, Chin. J. Catal. 36 (2015) 801-805, DOI: 10.1016/S1872-2067(14)60277-1.
M. Dyballa, U. Obenaus, S. Lang, B. Gehring, Y. Traa, H. Koller, M. Hunger, Self-stabilization of acidic zeolite A prepared by ammonium exchange, Microporous Mesoporous Mater. 212 (2015) 110-116, DOI: 10.1016/j.micromeso.2015.03.030.
W. Dai, C. Wang, X. Yi, A. Zheng, L. Li, G. Wu, N. Guan, Z. Xie, M. Dyballa, M. Hunger, Identification of tert-butyl cations in zeolite H-ZSM-5: Evidence from solid-state NMR spectroscopy and DFT calculations, Angew. Chem. Int. Ed. 54 (2015) 8783-8786, DOI: 10.1002/anie.201502748.
G. Naefe, M.-A. Lopez-Martinez, Y. Traa, M. Dyballa, M. Hunger, Th. Hirth, E. Klemm, Deactivation behavior of alkalioemetal zeolites in the dehydration of lactic acid to acrylic acid, J. Catal. 329 (2015) 413-424, DOI: 10.1016/j.jcat.2015.05.017.
U. Obenaus, M. Dyballa, S. Lang, M. Scheibe, M. Hunger, Generation and properties of Broensted acid sites in bifunctional Rh-, Ir-, Pd-, and Pt-containing zeolites Y investigated by solid-state NMR spectroscopy, J. Phys. Chem. C 119 (2015) 15254-15262, DOI: 10.1021/acs.jpcc.5b03149.
S. Sen, R. Schowner, D.A. Imbrich, W. Frey, M. Hunger, M. Buchmeiser, Neutral and cationic molybdenum imido alkyledene N-heterocyclic carbene complexes: Reactivity in selected olefin metathesis reactions and immobilization on silica, Chem. Eur. J. 21 (2015) 13778-13787, DOI: 10.1002/chem.201501615.
X. Sun, W. Dai, G. Wu, L. Li, N. Guan, M. Hunger, Evidence of rutile-to-anatase photo-induced electron transfer in mixed-phase TiO2 by solid-state NMR spectroscopy, Chem. Commun. 51 (2015) 13779-13782, DOI: 10.1039/c5cc04971g.
2014
X. Wang, W. Dai, G. Wu, L. Li, N. Guan, M. Hunger, Verifying the dominant catalytic cycle of the methanol-to-hydrocarbon conversion over SAPO-41, Catal. Sci. Technol. 4(3) (2014) 688-696, DOI: 10.1039/c3cy00740e.
X. Sun, M. Dyballa, J. Yan, L. Li, N. Guan, M. Hunger, Solid-state NMR investigation of the 16/17O isotope exchange of oxygen species in pure-anatase and mixed-phase TiO2, Chem. Phys. Lett. 594 (2014) 34-40, DOI: 10.1016/j.cplett.2014.01.014.
B. Tang, W. Dai, X. Sun, N. Guan, L. Li, M. Hunger, A procedure for the preparation of Ti-Beta zeolites for catalytic epoxidation with hydrogen peroxide, Green Chemistry 16 (2014) 2281-2291, DOI: 10.1039/c3gc42534g.
Z. Wang, L. Wang, Y. Jiang, M. Hunger, J. Huang, Cooperativity of Broensted and Lewis acid sites on zeolite for glycerol dehydration, ACS Catal. 4 (2014) 1144-1147, DOI: 10.1021/cs401225k.
E. Roduner, Ch. Jensen, J. van Slageren, R. A. Rakozy, O. Larlus, M. Hunger, Anomalous diamagnetic susceptibility in 13-atom Pt nanocluster superatoms, Angew. Chem. Int. Ed. 53 (2014) 4318-4321, DOI: 10.1002/anie.201310637.
T.T.H. Dang, D.-L. Hoang, M. Schneider, M. Hunger, A. Martin, Impacts of conventional and microwave heating on SAPO-5 synthesis and the Broensted acidity, Z. Anorg. Allg. Chem. 640 (2014) 1576-1584, DOI: 10.1002/zaac.201400014.
K. Sato, K. Numata, W. Dai, M. Hunger, Tunable states of interlayer cations in two-dimensional materials, Appl. Phys. Lett. 104 (2014) 131901, DOI: 10.1063/1.4870006.
W. Dai, X. Sun, B. Tang, G. Wu, L. Li, N. Guan, M. Hunger, Verifying the mechanism of the ethene-to-propene conversion on zeolite H-SSZ-13, J. Catal. 314 (2014) 10-20, DOI: 10.1016/j.jcat.2014.03.006.
K. Sato, K. Numata, W. Dai, M. Hunger, Long-term self-assembly of inorganic layered materials influenced by the local states of the interlayer cations, Phys. Chem. Chem. Phys. 16 (2014) 10959-10964, DOI: 10.1039/C4CP00990H.
X. Vu, U. Bentrup, M. Hunger, U. Armbruster, A. Martin, Direct synthesis of nanosized-ZSM-5/SBA-15 analog composites from preformed ZSM-5 precursors for improved catalytic performance as cracking catalyst, J. Mater. Sci. 49 (2014) 5676-5689, DOI: 10.1007/s10853-014-8287-z.
B. Tang, W. Dai, G. Wu., N. Guan., L. Li, M. Hunger, Improved post-synthesis strategy to Sn-Beta zeolites as Lewis acid catalysts for the ring-open hydration of epoxides, ACS Catal. 4 (2014) 2801-2810, DOI: 10.1021/cs500891s.
Z. Wang, Y. Jiang, M. Hunger, A. Baiker, J. Huang, Catalytic performance of Broensted and Lewis acid sites in phenylglyoxal conversion on flame-derived silica-zirconia, ChemCatChem 6 (2014) 2970-2975, DOI: 10.1002/cctc.201402397.
2013
U. Filek, D. Mucha, M. Hunger, B. Sulikowski, Novel gallium and indium salts of the 12-tungstophosphoric heteropolyacid: Synthesis, characterization and catalytic properties, Catal. Commun. 30 (2013) 19-22, DOI: 10.1016/j.catcom.2012.10.012.
H. Henning, M. Dyballa, M. Scheibe, E. Klemm, M. Hunger, In situ CF MAS NMR study of the pairwise incorporation of parahydrogen into olefins on rhodium-containing zeolites Y, Chem. Phys. Lett. 555 (2013) 258-262, DOI: 10.1016/j.cplett.2012.10.068.
Z. Wang, S. Pokhrel, M. Hunger, L. Maedler, J. Huang, Palladium-doped silica-alumina catalysts obtained from double-flame FSP for chemoselective hydrogenation of the model aromatic ketone acetophenone, J. Catal. 302 (2013) 10-19, DOI: 10.1016/j.jcat.2013.02.017.
W. Dai, G. Wu, L. Li, N. Guan, M. Hunger, Mechanisms of the deactivation of SAPO-34 materials with different crystal sizes applied as MTO catalysts, ACS Catalysis 3 (2013) 588-596, DOI: 10.1021/cs400007v.
D. Santi, S. Rabl, V. Calemma, M. Dyballa, M. Hunger, J. Weitkamp, Effect of noble metals on the strength of Broensted acid sites in bifunctional zeolites, ChemCatChem 5 (2013) 1524-1530, DOI: 10.1002/cctc.201200675.
K. Sato, K. Fujimoto, W. Dai, M. Hunger, Molecular evidence of heavily adhesive Cs in soil: Why radioactive Cs is not decontaminated, J. Phys. Chem. C 117 (2013) 14075-14080, DOI: 10.1021/jp403899w.
M. Dyballa, E. Klemm, J. Weitkamp, M. Hunger, Effect of phosphate modification on the Broensted acidity and MTO activity of zeolite ZSM-5, Chemie Ingenieur Technik 85 (2013) 1719-1725, DOI: 10.1002/cite.201300066.
Z. Wang, Y. Jiang, R. Rachwalik, Z. Liu, J. Shi, M. Hunger, J. Huang, One-step room-temperature synthesis of [Al]MCM-41 materials for the catalytic conversion of phenylglyoxal to ethylmandelate, ChemCatChem 5 (2013) 3889-3896, DOI: 10.1002/cctc.201300375.
2012
H. Henning, M. Dornbach, M. Scheibe, E. Klemm, M. Hunger, In situ MAS NMR investigation of the hydrogenation of acrylonitrile on Pt- and Rh-containing zeolites Y, Microporous Mesoporous Mater. 164 (2012) 104-110, DOI: 10.1016/j.micromeso.2012.06.021.
X. Wang, W. Dai, G. Wu, L. Li, N. Guan, M. Hunger, Phosphorus Modified HMCM-22: Characterization and catalytic application in methanol-to-hydrocarbons conversion, Microporous Mesoporous Mater. 151 (2012) 99-106, DOI: 10.1016/j.micromeso.2011.11.008.
K. Sato, K. Fujimoto, K. Kawamura, W. Dai, M. Hunger, Rheological mechanism of long-term self-assembly in saponite nanoparticles, J. Phys. Chem. C 116 (2012) 22954-22959, DOI: 10.1021/jp307358d.
W. Dai, M. Scheibe, L. Li, N. Guan, M. Hunger, Effect of the methanol-to-olefin conversion on the PFG NMR self-diffusivities of ethane and ethene in large-crystalline SAPO-34, J. Phys. Chem. C. 116 (2012) 2469-2476, DOI: 10.1021/jp208815g.
R. Rachwalik, M. Hunger, B. Sulikowski, Transformations of monoterpene hydrocarbons on ferrierite type zeolites, Appl. Catal. A: General 427-428 (2012) 98-105, DOI: 10.1016/j.apcata.2012.03.037.
W. Dai, X. Wang, G. Wu, L. Li, N. Guan, M. Hunger, Methanol-to-olefin conversion catalyzed by low-silica AlPO-34 with traces of Broensted acid sites: Combined catalytic and spectroscopic investigation, ChemCatChem 4 (2012) 1428-1435, DOI: 10.1002/cctc.201100503.
S. Opelt, V. Krug, J. Sonntag, M. Hunger, E. Klemm, Investigations on stability and reusability of [Pd(2-pymo)2]n as hydrogenation catalyst, Microporous Mesoporous Mater. 147 (2012) 327-333, DOI: 10.1016/j.micromeso.2011.07.003.
2011
W. Dai, X. Wang, G. Wu, N. Guan, M. Hunger, L. Li, Methanol-to-olefin conversion on silicoaluminophosphate catalysts: Effect of Broensted acid sites and framework structures, ACS Catal. 1 (2011) 292-299, DOI: 10.1021/cs200016u.
Y. Jiang, J. Huang, M. Hunger, Effect of the reactant density inside the supercages of zeolite La,Na-Y on the mechanism of the ethylbenzene conversion, Catal. Today 164 (2011) 119-123, DOI: 10.1016/j.cattod.2010.10.024.
V.R. Reddy Marthala, M. Hunger, C. Chmelik, J. Kaerger, J. Weitkamp, Solvothermal synthesis and characterization of large crystal all-silica, aluminum-, and boron-containing ferrierite zeolites, Chem. Mater. 23 (2011) 2521-2528, DOI: 10.1021/cm1014898.
Y. Jiang, J. Huang, W. Dai, M. Hunger, Solid-state nuclear magnetic resonance investigations of the nature, property, and activity of acid sites on solid catalysts, Solid State Nucl. Magn. Reson. 39 (2011) 116-141, DOI: 10.1016/j.ssnmr.2011.03.007.
W. Dai, M. Scheibe, N. Guan, L. Li, M. Hunger, Fate of Broensted acid sites and benzene-based carbenium ions during methanol-to-olefin conversion on SAPO-34, ChemCatChem 3 (2011) 1130-1133, DOI: 10.1002/cctc.201100059.
J. Huang, Y. Jiang, N. van Vegten, M. Hunger, A. Baiker, Tuning the support acidity of flame-made Pd/SiO2-Al2O3 catalysts for chemoselective hydrogenation, J. Catal. 281 (2011) 352-360, DOI: 10.1016/j.jcat.2011.05.023.
W. Dai, N. Li, L. Li, N. Guan, M. Hunger, Unexpected methanol-to-olefins conversion activity of low-silica aluminophosphate molecular sieves, Catal. Commun. 16 (2011) 124-127, DOI: 10.1016/j.catcom.2011.09.025.
2010
Y. Jiang, J. Huang, S. Marx, W. Kleist, M. Hunger, A. Baiker, Effect of dehydration on the local structure of framework aluminum atoms in mixed-linker MIL-53(Al) materials studied by solid-state NMR spectroscopy, J. Phys. Chem. Lett. 1 (2010) 2886-2890, DOI: 10.1021/jz1010835.
C. Lieder, S. Opelt, M. Dyballa, H. Henning, E. Klemm, M. Hunger, Adsorbate effect on AlO4(OH)2 centers in the metal-organic framework MIL-53 investigated by solid-state NMR spectroscopy, J. Phys. Chem. C 114 (2010) 16596-16602, DOI: 10.1021/jp105700b.
J. Huang, N. van Vegten, Y. Jiang, M. Hunger, A. Baiker, Increasing the Broensted acidity of flame-derived silica-alumina up to zeolitic strength, Angew. Chem. Int. Ed. 49 (2010) 7776-7781, DOI: 10.1002/anie.201003391.
J. Frey, C. Lieder, Th. Schoelkopf, Th. Schleid, U. Nieken, E. Klemm, M. Hunger, Quantitative solid-state NMR investigation of V5+ species in VPO catalysts upon sequential selective oxidation of n-butane, J. Catal. 272 (2010) 131-139, DOI: 10.1016/j.jcat.2010.03.004.
E. Weber, D. Sirim, T. Schreiber, B. Thomas, J. Pleiss, M. Hunger, R. Glaser, V.B. Urlacher, Immobilization of P450 BM-3 monooxygenase on mesoporous molecular sieves with different pore diameters, J. Mol. Catal. B: Enzymatic 64 (2010) 29-37, DOI: 10.1016/j.molcatb.2010.01.020.
A. Bressel, J. Frey, U. Filek, B. Sulikowski, D. Freude, M. Hunger, Oxygen coordination of aluminum cations in dehydrated AlPW12O40 investigated by solid-state NMR spectroscopy, Chem. Phys. Lett. 487 (2010) 285-290, DOI: 10.1016/j.cplett.2010.01.048.
V.R. Reddy Marthala, J. Frey, M. Hunger, Accessibility and interaction of surface OH groups in microporous and mesoporous catalysts applied for vapor-phase Beckmann rearrangement of oximes, Catal. Lett. 135 (2010) 91-97, DOI: 10.1007/s10562-010-0274-7.
2009
J. Huang, Y. Jiang, V.R. Reddy Marthala, A. Bressel, J. Frey, M. Hunger, Effect of pore size and acid strength on the coke formation during ethylbenzene conversion on zeolite catalysts, J. Catal. 263 (2009) 277-283, DOI: 10.1016/j.jcat.2009.02.019.
J. Frey, Y.S. Ooi, B. Thomas, V.R. Reddy Marthala, A. Bressel, T. Schoelkopf, T. Schleid, M. Hunger, Vanadium phosphates on mesoporous supports: Model catalysts for solid-state NMR studies of the selective oxidation of n-butane, Solid State Nucl. Magn. Reson. 35 (2009) 130-137, DOI: 10.1016/j.ssnmr.2009.02.005.
Y. Jiang, J. Huang, B. Kasumaj, G. Jeschke, M. Hunger, T. Mallat, A. Baiker, Adsorption-desorption induced structural changes of Cu-MOF evidenced by solid state NMR and EPR spectroscopy, J. Am. Chem. Soc. 131 (2009) 2058-2059, DOI: 10.1021/ja8088718.
2008
J. Huang, Y. Jiang, V.R. Reddy Marthala, B. Thomas, E. Romanova, M. Hunger, Characterization and acidic properties of aluminum-exchanged zeolites X and Y, J. Phys. Chem. C 112 (2008) 3811-3818, DOI: 10.1021/jp7103616.
J. Huang, Y. Jiang, V.R. Reddy Marthala, Y.S. Ooi, M. Hunger, Regioselective H/D exchange at the side-chain of ethylbenzene on dealuminated zeolite Y studied by in situ pulsed-flow 1H MAS NMR-UV/Vis spectroscopy, ChemPhysChem 9 (2008) 1107-1109, DOI: 10.1002/cphc.200800065.
M. Hunger, In situ flow MAS NMR spectroscopy: State of the art and applications in heterogeneous catalysis, Prog. Nucl. Magn. Reson. Spectrosc. 53 (2008) 105-127, DOI: 10.1016/j.pnmrs.2007.08.001.
V.R. Reddy Marthala, S. Rabl, J. Huang, B. Thomas, M. Hunger, In situ solid-state NMR investigations of the vapor-phase Beckmann rearrangement of 15N-cyclohexanone oxime on MFI-type zeolites and mesoporous SBA-15 materials in the absence and presence of the additive 13C-methanol, J. Catal. 257 (2008) 134-141, DOI: 10.1016/j.jcat.2008.04.014.
R. Wolf, A.W. Ehlers, J.C. Slootweg, M. Lutz., D. Gudat, M. Hunger, A.L. Spek, K. Lammertsma, The homoleptic sandwich anion [Co(P2CtBu2)2]-: A versatile building block for phosphaorganometallic chemistry, Angew. Chem. Int. Ed. 47 (2008) 4584-4587, DOI: 10.1002/anie.200800813.
W. Wang, M. Hunger, Reactivity of surface alkoxy species on acidic zeolite catalysts, Acc. Chem. Res. 41 (2008) 895-904, DOI: 10.1021/ar700210f.
J. Huang, Y. Jiang, V.R. Reddy Marthala, M. Hunger, Insight into the mechanisms of the ethylbenzene disproportionation: Transition state shape selectivity on zeolites, J. Am. Chem. Soc. 130 (2008) 12642-12644, DOI: 10.1021/ja8042849.
U. Filek, A. Bressel, B. Sulikowski, M. Hunger, Structural stability and Broensted acidity of thermally treated AlPW12O40 in comparison with H3PW12O40, J. Phys. Chem. C 112 (2008) 19470-19476, DOI: 10.1021/jp807947v.
2007
J. Huang, Y. Jiang, V.R. Reddy Marthala, W. Wang, B. Sulikowski, M. Hunger, In situ 1H MAS NMR investigations of the H/D exchange of alkylaromatic hydrocarbons on zeolites H-Y, La,Na-Y, and H-ZSM-5, Microporous Mesoporous Mater. 99 (2007) 86-90, DOI: 10.1016/j.micromeso.2006.06.041.
V.R. Reddy Marthala, W. Wang, J. Jiao, Y. Jiang, J. Huang, M. Hunger, Effect of probe molecules with different proton affinities on the coordination of boron atoms in dehydrated zeolite H-[B]ZSM-5, Microporous Mesoporous Mater. 99 (2007) 91-97, DOI: 10.1016/j.micromeso.2006.07.034.
R. Rachwalik, Z. Olejniczak, J. Jiao, J. Huang, M. Hunger, B. Sulikowski, Isomerization of alpha-pinene over dealuminated ferrierite-type zeolites, J. Catal. 252 (2007) 161-170, DOI: 10.1016/j.jcat.2007.10.001.
J. Huang, Y. Jiang, V.R. Reddy Marthala, Y.S. Ooi, J. Weitkamp, M. Hunger, Concentration and acid strength of hydroxyl groups in zeolites La,Na-X and La,Na-Y with different lanthanum exchange degrees studied by solid-state NMR spectroscopy, Microporous Mesoporous Mater. 104 (2007) 129-136, DOI: 10.1016/j.micromeso.2007.01.016.
Y. Jiang, J. Huang, V.R. Reddy Marthala, Y.S. Ooi, J. Weitkamp, M. Hunger, In situ MAS NMR-UV/Vis investigation of H-SAPO-34 catalysts partially coked in the methanol-to-olefin conversion under continuous-flow conditions and of their regeneration, Microporous Mesoporous Mater. 105 (2007) 132-139, DOI: 10.1016/j.micromeso.2007.05.028.
M. Hunger, Moderne Methoden der In-situ-Festkoerper-NMR-Spektroskopie in der heterogenen Katalyse, Chemie Ingenieur Technik 79 (2007) 781-793, DOI: 10.1002/cite.200700008.
Y. Jiang, J. Huang, J. Weitkamp, M. Hunger, In situ MAS NMR and UV/VIS spectroscopic studies of hydrocarbon pool compounds and coke deposits formed in the methanol-to-olefin conversion on H-SAPO-34, Stud. Surf. Sci. Catal. 170 (2007) 1137-1144, DOI: 10.1016/S0167-2991(07)80970-0.
J. Huang, Y. Jiang, M. Hunger, Influence of the lanthanum exchange degree on the concentration and acid strength of bridging hydroxyl groups in zeolites La,Na-X, Stud. Surf. Sci. Catal. 170 (2007) 622-628, DOI: 10.1016/S0167-2991(07)80900-1.
Y. Jiang, J. Huang, W. Wang, M. Hunger, Formation of methylamines by the reaction of ammonia with surface methoxy species on zeolite H-Y and the silicoaluminophosphate H-SAPO-34, Stud. Surf. Sci. Catal. 170 (2007) 1331-1337, DOI: 10.1016/S0167-2991(07)80996-7.
U. Filek, A. Mohamed, M. Hunger, B. Sulikowski, Oxidation of norbornene over heteropolyacids and their salts, Proc. 14th Zeolite Forum, 16-21 September 2007, Kocierz, Poland, PAS, ISBN 978-83-60514-05-4, 2007, p. 327-337.
2006
M. Hunger, W. Wang, Characterization of Solid Catalysts in the Functioning State by Nuclear Magnetic Resonance Spectroscopy, Adv. Catal. 50 (2006) 149-225, DOI: 10.1016/S0360-0564(06)50004-5.
J. Jiao, J. Kanellopoulos, B. Behera, Y. Jiang, J. Huang, V.R.R. Marthala, S.S. Ray, W. Wang, M. Hunger, Effects of adsorbate molecules on the quadrupolar interaction of framework aluminum atoms in dehydrated zeolite H,Na-Y, J. Phys. Chem. B 110 (2006) 13812-13818, DOI: 10.1021/jp0612533.
V.R. Reddy Marthala, Y. Jiang, J. Huang, W. Wang, R. Glaser, M. Hunger, Beckmann rearrangement of 15N-cyclohexanone oxime on zeolites silicalite-1, H-ZSM-5, and H-[B]ZSM-5 studied by solid-state NMR spectroscopy, J. Am. Chem. Soc. 128 (2006) 14812-14813, DOI: 10.1021/ja066392c.
J. Jiao, W. Wang, B. Sulikowski, J. Weitkamp, M. Hunger, 29Si and 27Al MAS NMR characterization of non-hydrated zeolites Y upon adsorption of ammonia, Microporous Mesoporous Mater. 90 (2006) 246-250, DOI: 10.1016/j.micromeso.2005.08.006.
W. Wang, Y. Jiang, M. Hunger, Mechanistic investigations of the methanol-to-olefin (MTO) process on acidic zeolite catalysts by in situ solid-state NMR spectroscopy, Catal. Today 113 (2006) 102-114, DOI: 10.1016/j.cattod.2005.11.015.
Y. Jiang, W. Wang, V.R. Reddy Marthala, J. Huang, B. Sulikowski, M. Hunger, Effect of organic impurities on the hydrocarbon formation via the decomposition of surface methoxy groups on acidic zeolite catalysts, J. Catal. 238 (2006) 21-27, DOI: 10.1016/j.jcat.2005.11.029.
Y. Jiang, W. Wang, V.R. Reddy Marthala, J. Huang, B. Sulikowski, M. Hunger, Response to comments on the paper: Effect of organic impurities on the hydrocarbon formation via the decomposition of surface methoxy groups on acidic zeolite catalysts, J. Catal. 244 (2006) 134-136, DOI: 10.1016/j.jcat.2006.08.001.
Y. Jiang, M. Hunger, W. Wang, On the reactivity of surface methoxy species in acidic zeolites, J. Am. Chem. Soc. 128 (2006) 11679-11692, DOI: 10.1021/ja061018y.
M.V. Luzgin, A.G. Stepanov, S.S. Arzumanov, V.A. Rogov, V.N. Parmon, W. Wang, M. Hunger, D. Freude, Mechanism studies of the conversion of 13C-labeled n-butane on zeolite H-ZSM-5 by using 13C magic angle spinning NMR spectroscopy and GC-MS analysis, Chem. Eur. J. 12 (2006) 457-465, DOI: 10.1002/chem.200500382.
J. Morell, M. Guengerich, G. Wolter, J. Jiao, M. Hunger, P.J. Klar, M. Froeba, Synthesis and characterization of highly ordered bifunctional aromatic periodic mesoporous organosilicas with different pore sizes, J. Mater. Chem. 16 (2006) 2809-2818, DOI: 10.1039/b603458f.
2005
J. Jiao, S.S. Ray, W. Wang, J. Weitkamp, M. Hunger, Effect of dehydration on the local structure of framework silicon atoms in zeolites Y investigated by solid-state NMR spectroscopy, Z. Anorg. Allg. Chem. 631 (2005) 484-490, DOI: 10.1002/zaac.200400329.
M. Xu, W. Wang, J. Weitkamp, M. Hunger, Dry-gel synthesis of mesoporous MCM-41 materials with modified pore structure, Z. Phys. Chem. 219 (2005) 877-890, DOI: 10.1524/zpch.219.7.877.67089.
J. Weitkamp, M. Hunger, Preparation of zeolites via the dry-gel synthesis method, Stud. Surf. Sci. Catal., Vol. 155, Elsevier, Amsterdam, 2005, p. 1-11, DOI: 10.1016/S0167-2991(05)80133-8.
A.G. Stepanov, M.V. Luzgin, S.S. Arzumanov, W. Wang, M. Hunger, D. Freude, n-Butane conversion on sulfated zirconia: In situ 13C MAS NMR monitoring of the kinetics of the 13C-label scrambling and isomerization, Catal. Lett. 101 (2005) 181-185, DOI: 10.1007/s10562-005-4887-1.
M. Hunger, Applications of in situ spectroscopy in zeolite catalysis, Microporous Mesoporous Mater. 82 (2005) 241-255, DOI: 10.1016/j.micromeso.2005.01.037.
W. Wang, J. Jiao, Y. Jiang, S.S. Ray, M. Hunger, Formation and decomposition of surface ethoxy species on acidic zeolite Y, ChemPhysChem 6 (2005) 1467-1469, DOI: 10.1002/cphc.200500262.
J. Jiao, J. Kanellopoulos, W. Wang, S. S. Ray, H. Foerster, D. Freude, M. Hunger, Characterization of framework and extra-framework aluminum species in non-hydrated zeolites Y by 27Al spin-echo, high-speed MAS, and MQMAS NMR spectroscopy at B0 = 9.4 to 17.6 T, Phys. Chem. Chem. Phys. 7 (2005) 3221-3226, DOI: 10.1039/b508358c.
2004
M. Hunger, W. Wang, Formation of cyclic compounds and carbenium ions by conversion of methanol on weakly dealuminated zeolite H-ZSM-5 investigated via a novel in situ CF MAS NMR/UV-Vis technique, Chem. Commun. (2004) 584-585, DOI: 10.1039/b315779b.
A. Arnold, M. Hunger, J. Weitkamp, Dry-gel synthesis of zeolites [Al]EU-1 and [Ga]EU-1, Microporous Mesoporous Mater. 67 (2004) 205-213, DOI: 10.1016/j.micromeso.2003.10.010.
A. Simon, J. Koehler, P. Keller, J. Weitkamp, A. Buchholz, M. Hunger, Phase transformation of zeolites Cs,Na-Y and Cs,Na-X impregnated with cesium hydroxide, Microporous Mesoporous Mater. 68 (2004) 143-150, DOI: 10.1016/j.micromeso.2003.12.019.
A. Buchholz, W. Wang, M. Xu, A. Arnold, M. Hunger, Sequential steps of ammoniation of the microporous silicoaluminophosphates H-SAPO-34 and H-SAPO-37 investigated by in situ CF MAS NMR spectroscopy, J. Phys. Chem. B 108 (2004) 3107-3113, DOI: 10.1021/jp030249d.
W. Wang, P.L. De Cola, L. Glaeser, I.I. Ivanova, J. Weitkamp, M. Hunger, Methylation of phenol by methanol on acidic zeolite H-Y investigated by in situ CF MAS NMR spectroscopy, Catal. Lett. 94 (2004) 119-123, DOI: 10.1023/B:CATL.0000019341.67169.ac.
J. Jiao, S. Altwasser, W. Wang, J. Weitkamp, M. Hunger, State of aluminum in dealuminated, non-hydrated zeolites Y investigated by multi-nuclear solid-state NMR spectroscopy, J. Phys. Chem. B 108 (2004) 14305-14310, DOI: 10.1021/jp040081b.
S. Altwasser, J. Jiao, S. Steuernagel, J. Weitkamp, M. Hunger, Elucidating the dealumination mechanism of zeolite H-Y by solid-state NMR spectroscopy, Stud. Surf. Sci. Catal. 154 (2004) 3098-3105, DOI: 10.1016/S0167-2991(04)80630-X.
I.I. Ivanova, E.B. Pomakhina, I.B. Borodina, A.I. Rebrov, W. Wang, J. Weitkamp, M. Hunger, An in situ 13C MAS NMR study of the zeolite-catalyzed alkylation of polar aromatics, Stud. Surf. Sci. Catal., Vol. 154, Elsevier, Amsterdam, 2004, p. 2221-2227, DOI: 10.1016/S0167-2991(04)80479-8.
M. Hunger, In situ NMR spectroscopy in heterogeneous catalysis, Catal. Today 97 (2004) 3-12, DOI: 10.1016/j.cattod.2004.03.061.
2003
A. Buchholz, W. Wang, A. Arnold, M. Xu, M. Hunger, Successive steps of hydration and dehydration of silicoaluminophosphates H-SAPO-34 and H-SAPO-37 investigated by in situ CF MAS NMR spectroscopy, Microporous Mesoporous Mater. 57 (2003) 157-168, DOI: 10.1016/S1387-1811(02)00562-0.>
W. Wang, A. Buchholz, A. Arnold, M. Xu, M. Hunger, Effect of surface methoxy groups on the 27Al quadrupole parameters of framework aluminum atoms in calcined zeolite H-Y, Chem. Phys. Lett. 370 (2003) 88-93, DOI: 10.1016/S0009-2614(03)00086-1.
M. Xu, W. Wang, M. Hunger, Formation of acetone enol on acidic zeolite ZSM-5 evidenced by H/D exchange, Chem. Commun. (2003) 722-723, DOI: 10.1039/b212701f.
W. Wang, M. Xu, A. Buchholz, A. Arnold, M. Hunger, Time-resolved observation of the decomposition process of N,N,N-trimethylanilinium cations on zeolite H-Y by in situ stopped-flow 13C MAS NMR spectroscopy, Magn. Reson. Imaging 21 (2003) 329-332, DOI: 10.1016/S0730-725X(03)00163-2.
M. Seiler, W. Wang, A. Buchholz, M. Hunger, Direct evidence for the catalytically active role of the hydrocarbon pool formed on zeolite H-ZSM-5 during the methanol to olefin conversion, Catal. Lett. 88 (2003) 187-191, DOI: 10.1023/A:1024018023895.
A. Arnold, S. Steuernagel, M. Hunger, J. Weitkamp, Insight into the dry-gel synthesis of gallium-rich zeolite [Ga]Beta, Microporous Mesoporous Mater. 62 (2003) 97-106, DOI: 10.1016/S1387-1811(03)00397-4.
W. Wang, A. Buchholz, I.I. Ivanova, J. Weitkamp, M. Hunger, Synthesis and immobilization of quaternary ammonium cations in acidic zeolites, Chem. Commun. (2003) 2600-2601, DOI: 10.1039/b308382a.
W. Wang, A. Buchholz, M. Seiler, M. Hunger, Evidence for an initiation of the MTO process by reactive surface methoxy groups on acidic zeolite catalysts, J. Am. Chem. Soc. 125 (2003) 15260-15267, DOI: 10.1021/ja0304244.
I.I. Ivanova, O.A. Ponomoreva, A.I. Rebrov, W. Wang, M. Hunger, J. Weitkamp, Mechanism of aniline methylation on zeolite catalysts investigated by in situ 13C MAS NMR, Kinetics and Catalysis 44(5) (2003) 701-709, DOI: 10.1023/A:1026158525990.
2002
W. Wang, M. Seiler, I.I. Ivanova, U. Sternberg, J. Weitkamp, M. Hunger, Formation and decomposition of N,N,N-trimethylanilinium cations on zeolite H-Y investigated by in situ stopped-flow (SF) MAS NMR spectroscopy, J. Am. Chem. Soc. 124 (2002) 7548-7554, DOI: 10.1021/ja012675n.
M. Xu, W. Wang, M. Seiler, A. Buchholz, M. Hunger, Improved Broensted acidity of mesoporous [Al]MCM-41 material treated with ammonium fluoride, J. Phys. Chem. B 106 (2002) 3202-3208, DOI: 10.1021/jp014222a.
I.I. Ivanova, O.A. Ponomoreva, E.B. Pomakhina, E.E. Knyazeva, V.V. Yuschenko, M. Hunger, J. Weitkamp, Aniline methylation on modified zeolites with acidic, basic and redox properties, Stud. Surf. Sci. Catal. 142 (2002) 659-666, DOI: 10.1016/S0167-2991(02)80086-6.
M. Xu, A. Arnold, A. Buchholz, W. Wang, M. Hunger, Low-temperature modification of mesoporous MCM-41 material with sublimated aluminum chloride in vacuum, J. Phys. Chem. B 106 (2002) 12140-12143, DOI: 10.1021/jp021308a.
R.A. Rakoczy, M. Breuninger, M. Hunger, Y. Traa, J. Weitkamp, Template-free synthesis of zeolite Ferrierite and characterization of its acid sites, Chem. Eng. Technol. 25 (2002) 273-275, DOI: 10.1002/1521-4125(200203)25:3%3C273::AID-CEAT273%3E3.0.CO;2-4.
A. Buchholz, W. Wang, M. Xu, A. Arnold, M. Hunger, Thermal stability and dehydroxylation of Broensted acid sites in silicoaluminophosphates H-SAPO-11, H-SAPO-18, H-SAPO-31, and H-SAPO-34 investigated by multi-nuclear solid-state NMR spectroscopy, Microporous Mesoporous Mater. 56 (2002) 267-278, DOI: 10.1016/S1387-1811(02)00491-2.
2001
M. Hunger, J. Weitkamp, In situ IR, NMR, EPR and UV/Vis Spectroscopy: Tools for New Insight into the Mechanisms of Heterogeneous Catalysis, Angew. Chem. 113 (2001) 3040-3059; Angew. Chem. Int. Ed. 40 (2001) 2954-2971, DOI: 10.1002/1521-3773(20010817)40:16%3C2954::AID-ANIE2954%3E3.0.CO;2-%23.
M. Weihe, M. Hunger, M. Breuninger, H.G. Karge, J. Weitkamp, Influence of the nature of residual alkali cations on the catalytic activity of zeolites X, Y, and EMT in their Broensted Acid Forms, J. Catal. 198 (2001) 256-265, DOI: 10.1006/jcat.2000.3137.
M. Hunger, M. Seiler, A. Buchholz, In situ MAS NMR spectroscopic investigation of the conversion of methanol to olefins on silicoaluminophosphates SAPO-34 and SAPO-18 under continuous flow conditions, Catal. Lett. 74 (2001) 61-68, DOI: 10.1023/A:1016687014695.
A. Raichle, S. Moser, Y. Traa, M. Hunger, J. Weitkamp, Gallium-containing zeolites - valuable catalysts for the conversion of cycloalkanes into a prenium synthetic steamcracker feedstock, Catal. Commun. 2 (2001) 23-29, DOI: 10.1016/S1566-7367(01)00003-6.
M. Seiler, W. Wang, M. Hunger, Local structure of framework aluminium in zeolite HZSM-5 during conversion of methanol investigated by in situ NMR spectroscopy, J. Phys. Chem. B 105 (2001) 8143-8148, DOI: 10.1021/jp004455m.
U. Rymsa, M. Hunger, J. Weitkamp, Catalytic In situ Infrared Spectroscopic Study of n-Butyraldehyde Aldol Condensation, Stud. Surf. Sci. Catal. 135 (2001) 23-P-23, DOI: 10.1016/S0167-2991(01)81488-9.
M. Hunger, A. Buchholz, U. Schenk, High Temperature MAS NMR investigation of the mobility of cations and guest compounds in zeolites Y and X, Stud. Surf. Sci. Catal. 135 (2001) 14-P-17, DOI: 10.1016/S0167-2991(01)81816-4.
I.I. Ivanova, E.B. Pomakhina, A.I. Rebrov, Yu.G. Kolyagin, M. Hunger, J. Weitkamp, Mechanistic study of aniline methylation over acidic and basic zeolites Y, Stud. Surf. Sci. Catal. 135 (2001) 23-P-12, DOI: 10.1016/S0167-2991(01)81477-4.
S. Caldarelli, A. Buchholz, M. Hunger, Investigation of sodium cations in dehydrated zeolites LSX, X, and Y by 23Na off-resonance RIACT triple-quantum and high speed MAS NMR spectroscopy, J. Am. Chem. Soc. 123 (2001) 7118-7123, DOI: 10.1021/ja0102538.
A. Raichle, M. Ramin, D. Singer, M. Hunger, Y. Traa, J. Weitkamp, Influence of the aluminum content of zeolite H-ZSM-5 on the conversion of methylcyclohexane into a high-quality synthetic steamcracker feedstock, Catal. Commun. 2 (2001) 69-74, DOI: 10.1016/S1566-7367(01)00012-7.
W. Wang, M. Seiler, I.I. Ivanova, J. Weitkamp, M. Hunger, In situ stopped-flow (SF) MAS NMR spectroscopy: A novel NMR technique applied for the study of aniline methylation on a solid base catalyst, Chem. Commun. (2001) 1362-1363, DOI: 10.1039/b104115k.
M. Breuninger, C. Berger, M. Hunger, J. Weitkamp, Cumolsynthese an Zeolithen H-Beta, H-NU-87, H-EU-1 und H-MCM-22: Aufklaerung der Katalysatordesaktivierung mittels In-situ-IR-Spektroskopie, Chem. Ing. Tech. 73 (2001) 869-872, DOI: 10.1002/1522-2640(200107)73:7%3C869::AID-CITE869%3E3.0.CO;2-X.
J. Weitkamp, M. Hunger, U. Rymsa, Base catalysis on microporous and mesoporous materials: Recent progress and perspectives, Microporous Mesoporous Mater. 48 (2001) 255-270, DOI: 10.1016/S1387-1811(01)00366-3.
I.I. Ivanova, E.B. Pomakhina, A.I. Rebrov, M. Hunger, Yu.G. Kolyagin, J. Weitkamp, Surface species formed during aniline methylation on zeolite H-Y investigated by in situ MAS NMR spectroscopy, J. Catal. 203 (2001) 375-381, DOI: 10.1006/jcat.2001.3300.
W. Wang, M. Seiler, M. Hunger, Role of surface methoxy species in the conversion of methanol to dimethyl ether on acidic zeolites investigated by in situ stopped-flow (SF) MAS NMR spectroscopy, J. Phys. Chem. B 105 (2001) 12553-12558, DOI: 10.1021/jp0129784.
A. Arnold, M. Hunger, J. Weitkamp, Dry-gel-Synthese von Zeolithen des Typs [Ga]Beta und deren quantitative Charakterisierung mittels NMR-Spektroskopie, Chem. Ing. Tech. 73 (2001) 1588-1592, DOI: 10.1002/1522-2640(200112)73:12%3C1588::AID-CITE1588%3E3.0.CO;2-H.
2000
B. Burger, K. Haas-Santo, M. Hunger, J. Weitkamp, Synthesis and characterization of aluminum-rich zeolite ZSM-5, Chem. Eng. Technol. 23 (2000) 322-324, DOI: 10.1002/(SICI)1521-4125(200004)23:4%3C322::AID-CEAT322%3E3.0.CO;2-S.
T. Horvath, M. Seiler, M. Hunger, A comparative study of methyl-tert-butyl ether synthesis on zeolites HY, HBeta, HBeta/F and HZSM-5 by in situ MAS NMR spectroscopy under flow conditions and on-line gas chromatography, Appl. Catal. A: General 193 (2000) 227-236, DOI: 10.1016/S0926-860X(99)00432-9.
M. Hunger, U. Schenk, M. Seiler, J. Weitkamp, In situ MAS NMR spectroscopy of surface compounds formed by conversion of methanol and a toluene/methanol feed on basic zeolite X under batch and flow conditions, J. Mol. Catal. A: Chemical 156 (2000) 153-161, DOI: 10.1016/S1381-1169(99)00404-5.
M. Hunger, U. Schenk and A. Buchholz, Mobility of cations and guest compounds in cesium-exchanged and impregnated zeolites Y and X investigated by high-temperature MAS NMR spectroscopy, J. Phys. Chem. B 104 (2000) 12230-12236, DOI: 10.1021/jp001571g.
1999
M. Hunger, U. Schenk, M. Breuninger, R. Glaeser, J. Weitkamp, Characterization of the acid sites in MCM-41-type materials by spectroscopic and catalytic techniques, Microporous Mesoporous Mater. 27 (1999) 261-271, DOI: 10.1016/S1387-1811(98)00260-1.
J. Weitkamp, M. Breuninger, H.G. Karge, M. Hunger, Peculiarities of Broensted acid sites in FER-type zeolites, in: M.M.J. Treacy, B.K. Marcus, M.E. Bisher, J.B. Higgins (eds.), Proc. of the 12th International Zeolite Conference, Materials Research Society, Warrendale, Pennsylvania, 1999, p. 2697-2704.
M. Hunger, U. Schenk, B. Burger, J. Weitkamp, Influence of guest compounds on the base strength of zeolites Y and X investigated by NMR spectroscopy, in: M.M.J. Treacy, B.K. Marcus, M.E. Bisher, J.B. Higgins (eds.), Proc. of the 12th International Zeolite Conference, Materials Research Society, Warrendale, Pennsylvania, 1999, p. 2503-2510.
M. Hunger, M. Seiler, T. Horvath, A technique for simultaneous in situ MAS NMR and on-line gas chromatographic studies of hydrocarbon conversions on solid catalysts under flow conditions, Catal. Lett. 57 (1999) 199-204, DOI: 10.1023/A:1019064003201.
U. Schenk, M. Hunger, J. Weitkamp, Characterization of basic guest compounds on solid catalysts by 13C CP/MAS NMR spectroscopy of surface methoxy groups, Magn. Reson. Chem. 37 (1999) S75-S78, DOI: 10.1002/(SICI)1097-458X(199912)37:13%3CS75::AID-MRC536%3E3.0.CO;2-A.
U. Rymsa, M. Hunger, H. Knoezinger, J. Weitkamp, Spectroscopic and catalytic characterization of basic zeolites and related porous materials, Stud. Surf. Sci. Catal. 125 (1999) 197-204, DOI: 10.1016/S0167-2991(99)80214-6.
M. Seiler, U. Schenk, M. Hunger, Conversion of methanol to hydrocarbons on zeolite HZSM-5 investigated by in situ MAS NMR spectroscopy under flow conditions and on-line gas chromatography, Catal. Lett. 62 (1999) 139-145, DOI: 10.1023/A:1019086603511.
1998
R. Glaeser, R. Li, M. Hunger, S. Ernst, J. Weitkamp, Zeolite HNU-87: Synthesis, characterization and catalytic properties in the shape-selective conversion of methylnaphthalenes, Catal. Lett. 50 (1998) 141-148, DOI: 10.1023/A:1019039723906.
M. Hunger, U. Schenk, J. Weitkamp, Mechanistic studies of the side-chain alkylation of toluene with methanol on basic zeolites Y by multi-nuclear NMR spectroscopy, J. Mol. Catal.: A 134 (1998) 97-109, DOI: 10.1016/S1381-1169(98)00026-0.
J. Stelzer, M. Paulus, M. Hunger, J. Weitkamp, Hydrophobic properties of all silica zeolite Beta, Microporous Mesoporous Mater. 22 (1998) 1-8, DOI: 10.1016/S1387-1811(98)00071-7.
M. Hunger, T. Horvath, J. Weitkamp, Methyl tertiary-butyl ether synthesis on zeolite HBeta investigated by in situ MAS NMR spectroscopy under continuous-flow conditions, Microporous Mesoporous Mater. 22 (1998) 357-367, DOI: 10.1016/S1387-1811(98)00078-X.
1997
M. Hunger, T. Horvath, Conversion of propan-2-ol on zeolites LaNaY and HY investigated by gas chromatography and in situ MAS NMR spectroscopy under flow conditions, J. Catal. 167 (1997) 187-197, DOI: 10.1006/jcat.1997.1562.
S. Ernst, M. Hunger, J. Weitkamp, Hydrothermalsynthese und physikalisch-chemische Charakterisierung von Zeolith MCM-58, Chem. Ing. Tech. 69 (1997) 77-79, DOI: 10.1002/cite.330690109.
M. Hunger, P. Sarv, A. Samoson, Two-dimensional triple-quantum 23Na MAS NMR spectroscopy of sodium cations in dehydrated zeolites, Solid State Nucl. Magn. Reson. 9 (1997) 115-120, DOI: 10.1016/S0926-2040(97)00051-9.
M. Hunger, Broensted acid sites in zeolites characterized by multi-nuclear solid-state NMR spectroscopy, Catal. Rev.-Sci. Eng. 39 (1997) 345-393, DOI: 10.1080/01614949708007100.
M. Hunger, U. Schenk, B. Burger, J. Weitkamp, Synergism between the guest compound and the host framework in zeolite CsNaY after impregnation with cesium hydroxide, Angew. Chemie 109 (1997) 2613-2615; Angew. Chem. Int. Ed. 36 (1997) 2504-2506, DOI: 10.1002/anie.199725041.
M. Hunger, T. Horvath, Sorption of methanol on zeolite HBeta investigated by in situ MAS NMR spectroscopy, Catal. Lett. 49 (1997) 95-100, DOI: 10.1023/A:1019028532141.
M. Hunger, T. Horvath, J. Weitkamp, MTBE synthesis on zeolites investigated by in situ NMR spectroscopy, in: W. Keim, B. Luecke, J. Weitkamp (eds.), Proc. of the DGMK-Conference "C4 Chemistry - Manufacture and Use of C4 Hydrocarbons", DGMK Tagungsbericht 9705, Hamburg, 1997, p. 65-72.
M. Hunger, T. Horvath, J. Weitkamp, Conversion of propan-2-ol on zeolite LaNaY investigated by in situ MAS NMR spectroscopy under continuous-flow conditions, Stud. Surf. Sci. Catal. 105 (1997) 853-860, DOI:10.1016/S0167-2991(97)80714-8.
U. Weisz, M. Weihe, M. Hunger, H.G. Karge, J. Weitkamp, The induction period in ethylbenzene disproportionation over large pore zeolites, Stud. Surf. Sci. Catal. 105 (1997) 973-980, DOI:10.1016/S0167-2991(97)80729-X.
1996
M. Hunger, Multinuclear solid-state NMR studies of acidic and non-acidic hydroxyl protons in zeolites, Solid State Nucl. Magn. Reson. 6 (1996) 1-29, DOI: 10.1016/0926-2040(95)01201-X.
M. Feuerstein, M. Hunger, G. Engelhardt, J.P. Amoureux, Characterization of sodium cations in dehydrated zeolite NaX by 23Na NMR spectroscopy, Solid State Nucl. Magn. Reson. 7 (1996) 95-103, DOI: 10.1016/S0926-2040(96)01246-5.
J. Weitkamp, S. Ernst, M. Hunger, T. Roeser, S. Huber, U.A. Schubert, P. Thomasson, H. Knoezinger, Solid state ion exchange of alkali metal cations into zeolite Y: Physicochemical characterization and catalytic tests, Stud. Surf. Sci. Catal. 101 (1996) 731-740, DOI: 10.1016/S0167-2991(96)80284-9.
M. Hunger, S. Ernst, S. Steuernagel, J. Weitkamp, High-field 1H MAS NMR investigations of acidic and non-acidic hydroxyl groups in zeolites H-Beta, H-ZSM-5, H-ZSM-58 and H-MCM-22, Microporous Mater. 6 (1996) 349-353, DOI: 10.1016/0927-6513(96)00043-0.
M. Hunger, T. Horvath, Adsorption of methanol on Broensted acid sites in zeolite H-ZSM-5 investigated by multi-nuclear solid-state NMR spectroscopy, J. Am. Chem. Soc. 118 (1996) 12302-12308, DOI: 10.1021/ja962425k.
1995
M. Hunger, G. Engelhardt, J. Weitkamp, Solid-state 23Na, 139La, 27Al and 29Si NMR studies of cation location and migration in LaNaY, Microporous Mater. 3 (1995) 497-510, DOI: 10.1016/0927-6513(94)00061-Y.
M. Hunger, S. Ernst, J. Weitkamp, Multi-nuclear solid-state NMR investigation of zeolite MCM-22, Zeolites 15 (1995) 188-192, DOI: 10.1016/0144-2449(94)00038-T.
H. Klein, H. Fuess, M. Hunger, Cation location and migration in lanthanum-exchanged zeolite NaY investigated by X-ray powder diffraction and MAS NMR spectroscopy, J. Chem. Soc., Faraday Trans. 91 (1995) 1813-1824, DOI: 10.1039/ft9959101813.
M. Hunger, T. Horvath, G. Engelhardt, H.G. Karge, Multi-nuclear NMR study of the interaction of SiOHAl groups with cationic and neutral guest-molecules in dehydrated zeolites Y and ZSM-5, Stud. Surf. Sci. Catal. 94 (1995) 756-763, DOI: 10.1016/S0167-2991(06)81293-0.
M. Hunger, T. Horvath, A new MAS NMR probe for in situ investigations of hydrocarbon conversion on solid catalysts under continuous-flow conditions, J. Chem. Soc., Chem. Commun. (1995) 1423-1424, DOI: 10.1039/c39950001423.
M. Hunger, T. Horvath, Multi-nuclear solid-state NMR study of the local structure of SiOHAl groups and their interaction with probe-molecules in dehydrated faujasite, mordenite and zeolite ZSM-5, Ber. Bunsenges. Phys. Chem. 99 (1995) 1316-1320, DOI: 10.1002/bbpc.199500077.
1994
M.A. Makarova, A.F. Ojo, K. Karim, M. Hunger, J. Dwyer, FTIR study of weak hydrogen bonding of Broensted hydroxyls in zeolites and aluminophosphates, J. Phys. Chem. 98 (1994) 3619-3623, DOI: 10.1021/j100065a013.
G. Engelhardt, M. Hunger, H. Koller, J. Weitkamp, Exploring cation siting in zeolites by solid-state NMR of quadrupolar nuclei, Stud. Surf. Sci. Catal. 84A (1994) 421-428, DOI:10.1016/S0167-2991(08)64141-5.
M. Hunger, G. Engelhardt, J. Weitkamp, Cation migration in zeolite LaNaY investigated by multi-nuclear solid-state NMR, Stud. Surf. Sci. Catal. 84A (1994) 725-732, DOI: 10.1016/S0167-2991(08)64179-8.
S. Unverricht, M. Hunger, S. Ernst, H.-G. Karge, J. Weitkamp, Zeolite MCM-22: synthesis, dealumination and structural characterization, Stud. Surf. Sci. Catal. 84A (1994) 37-44, DOI: 10.1016/S0167-2991(08)64087-2.
T. Riemer, D. Spielbauer, M. Hunger, G.A.H. Mekhemer, H. Knoezinger, Superacid properties of sulfated zirconia as measured by Raman spectroscopy and 1H MAS NMR, J. Chem. Soc., Chem. Commun. (1994) 1181-1182, DOI: 10.1039/c39940001181.
1993
M. Hunger, M. Anderson, A. Ojo, H. Pfeifer, Study of the geometry and location of the bridging OH groups in aluminosilicate and silicoaluminophosphate type zeolites using 1H MAS NMR sideband analysis and CP/MAS NMR, Microporous Mater. 1 (1993) 17-32, DOI: 10.1016/0927-6513(93)80005-F.
M. Hunger, G. Engelhardt, H. Koller, J. Weitkamp, Characterization of sodium cations in dehydrated faujasites and zeolite EMT by 23Na DOR, 2D nutation, and MAS NMR, Solid State Nucl. Magn. Reson. 2 (1993) 111-120, DOI: 10.1016/0926-2040(93)90029-M.
1992
B. Zibrowius, E. Loeffler, M. Hunger, Multinuclear MAS NMR and IR spectroscopic study of the silicon incorporation into SAPO-5, SAPO-31 and SAPO-34 molecular sieves, Zeolites 12 (1992) 167-174, DOI: 10.1016/0144-2449(92)90079-5.
M. Hunger, D. Freude, D. Fenzke, H. Pfeifer, 1H solid-state NMR studies of the geometry of Broensted acid sites in zeolites H-ZSM-5, Chem. Phys. Lett. 191 (1992) 391-395, DOI: 10.1016/0009-2614(92)85397-S.
H. Stach, J. Jaenchen, H.G. Jerschkewitz, U. Lohse, B. Parlitz, B. Zibrowius, M. Hunger, Mordenite acidity: Dependence on the Si/Al ratio and the framework aluminium topology. 1. Sample preparation and physicochemical characterization, J. Phys. Chem. 96 (1992) 8473-8479, DOI: 10.1021/j100200a050.
H. Stach, J. Jaenchen, H.-G. Jerschkewitz, U. Lohse, B. Parlitz, M. Hunger, Mordenite acidity: Dependence on the Si/Al ratio and the framework aluminium topology. 2. Acidity investigation, J. Phys. Chem. 96 (1992) 8480-8485, DOI: 10.1021/j100200a051.
1991
M. Hunger, D. Freude, H. Pfeifer, MAS NMR studies of water molecules adsorbed on Broensted and Lewis acid sites in zeolites and amorphous silica-aluminas, J. Chem. Soc. Faraday Trans. 1, 87 (1991) 657-662, DOI: 10.1039/ft9918700657.
E. Brunner, H. Ernst, D. Freude, T. Froehlich, M. Hunger, H. Pfeifer, Magic-angle spinning NMR studies of acid sites in zeolite H-ZSM-5, J. Catal. 127 (1991) 34-41, DOI: 10.1016/0021-9517(91)90206-J.
B. Zibrowius, E. Loeffler, G. Finger, E. Sonntag, M. Hunger, J. Kornatowski, Incorporation of silicon into the framework of SAPO-5 studied by NMR and IR spectroscopy, Stud. Surf. Sci. Catal. 65 (1991) 537-548, DOI: 10.1016/S0167-2991(08)62938-9.
H. Ernst. D. Freude, M. Hunger, H. Pfeifer, Multinuclear MAS NMR studies on coked zeolites H-ZSM-5, Stud. Surf. Sci. Catal. 65 (1991) 397-404, DOI: 10.1016/S0167-2991(08)62924-9.
D. Fenzke, M. Hunger, H. Pfeifer, Determination of nuclear distances and chemical shift anisotropy by an analysis of 1H MAS NMR sideband patterns of surface OH groups, J. Magn. Reson. 95 (1991) 477-483, DOI: 10.1016/0022-2364(91)90162-M.
M. Hunger, D. Freude, H. Pfeifer, 1H MAS NMR-Untersuchungen zur Wechselwirkung von Broensted-Zentren mit Sondenmolekuelen, Tagungsbericht 9101, DGMK-Fachbereichstagung, Leipzig, 1991, p. 147-154.
W. Reschetilowski, B. Meier, M. Hunger, B. Unger, K.-P. Wendlandt, Synthese und Charakterisierung P-haltiger ZSM-5-Zeolithe, Angew. Chem. 103 (1991) 728-729, DOI: 10.1002/anie.199106861.
E. Brunner, D. Freude, M. Hunger, H. Pfeifer, B. Staudte, Magic-angle-spinning nuclear magnetic resonance and infrared studies on modified zeolites, Stud. Surf. Sci. Catal. 69 (1991) 453-459, DOI: 10.1016/S0167-2991(08)61600-6.
B. Staudte, M. Hunger, M. Nimz, 1H MAS NMR and NIR studies of aluminium-exchanged ZSM-5 zeolites, Zeolites 11 (1991) 837-841, DOI: 10.1016/S0144-2449(05)80065-X.
1990
J. Caro, M. Buelow M. Derewinski, J. Haber, M. Hunger, J. Kaerger, H. Pfeifer, W. Storek, B. Zibrowius, NMR and IR studies of zeolites H-ZSM-5 modified with orthophosphoric acid, J. Catal. 124 (1990) 367-375, DOI: 10.1016/0021-9517(90)90185-M.
M. Hunger, D. Freude, H. Pfeifer, MAS NMR studies of silanol groups in zeolites ZSM-5 synthesized with an ionic template, Chem. Phys. Lett. 167 (1990) 21-26, DOI: 10.1016/0009-2614(90)85064-J.
B. Hunger, J. Hoffmann, O. Heitzsch, M. Hunger, Temperature-programmed desorption (TPD) of ammonia from HZSM-5 zeolites, J. Therm. Anal. 36 (1990) 1379-1391, DOI: 10.1007/BF01914061.
1989
F. Roessner, K.-H. Steinberg, D. Freude, M. Hunger, H. Pfeifer, NMR and IR studies of zeolites of the erionite type, Stud. Surf. Sci. Catal. 46 (1989) 421-427, DOI: 10.1016/S0167-2991(08)60998-2.
E. Brunner, H. Ernst, D. Freude, M. Hunger, C.B. Krause, D. Prager, W. Reschetilowski, W. Schwieger, K.-H. Bergk, Solid-state NMR and catalytic studies of mildly hydrothermally dealuminated H-ZSM-5, Zeolites 9 (1989) 282-286, DOI: 10.1016/0144-2449(89)90072-9.
W. Schwieger, K.-H. Bergk, D. Freude, M. Hunger, H. Pfeifer, Synthesis of pentasil zeolites with and without organic templates, ACS Symp. Ser. 398 (1989) 274-290, DOI: 10.1021/bk-1989-0398.ch020.
J. Caro, M. Buelow M. Derewinski, M. Hunger, J. Kaerger, U. Kuerschner, H. Pfeifer, W. Storek, B. Zibrowius, NMR characterization of zeolite H-ZSM-5 after post-synthesis modification with H3PO4, Stud. Surf. Sci. Catal. 52 (1989) 295-304, DOI: 10.1016/S0167-2991(08)60534-0.
E. Brunner, H. Ernst, D. Freude, T. Froehlich, M. Hunger, H. Pfeifer, MAS NMR studies on superacid sites, Stud. Surf. Sci. Catal. 49 (1989) 623-632, DOI: 10.1016/S0167-2991(08)61760-7.
W. Reschetilowski, W.-D. Einicke, M. Jusek, D. Freude, M. Hunger, J. Klinowski, Magic-angle spinning nuclear magnetic resonance and adsorption studies of dealumination and realumination of zeolite ZSM-5, Appl. Catal. 56 (1989) L15-L20, DOI: 10.1016/S0166-9834(00)80151-7.
M. Hunger, D. Freude, H. Pfeifer, D. Prager, W. Reschetilowski, Proton MAS NMR studies of hydroxyl groups in alkaline earth cation-exchanged zeolites Y, Chem. Phys. Lett. 163 (1989) 221-224, DOI: 10.1016/0009-2614(89)80039-9.
N. Van-Den-Begin, L.V.C. Rees, J. Caro, M. Buelow, M. Hunger, J. Kaerger, Diffusion of ethane in silicalite-1 by frequency response, sorption uptake and nuclear magnetic resonance techniques, J. Chem. Soc. Faraday Trans. 1, 85 (1989) 1501-1509, DOI: 10.1039/f19898501501.
J. Klinowski, H. Hamdan, A. Corma, V. Fornes, M. Hunger, D. Freude, 1H MAS NMR and IR studies of the acidic properties of realuminated zeolite Y, Catal. Lett. 3 (1989) 263-272, DOI: 10.1007/BF00766402.
1988
J. Kaerger, M. Hunger, D. Freude, H. Pfeifer, J. Caro, M. Buelow, H. Spindler, NMR investigations on molecular transport in ZSM-5 type zeolites containing structural defects, Catal. Today 3 (1988) 493-499, DOI: 10.1016/0920-5861(88)87033-0.
E. Brunner, H. Ernst, D. Freude, M. Hunger, H. Pfeifer, Characterization of zeolites by magic-angle spinning NMR, Stud. Surf. Sci. Catal. 37 (1988) 155-165, DOI: 10.1016/S0167-2991(09)60592-9.
E. Brunner, D. Freude, M. Hunger, H. Pfeifer, W. Reschetilowski, B. Unger, MAS NMR and IR studies on ZSM-5-type boroaluminozeolites, Chem. Phys. Lett. 148 (1988) 226-230, DOI: 10.1016/0009-2614(88)80304-X.
J. Voelter, J. Caro, M. Buelow, B. Fahlke, J. Kaerger, M. Hunger, Diffusion, cracking and coking on H-ZSM-5 of various morphologies, Appl. Catal. 42 (1988) 15-27, DOI: 10.1016/S0166-9834(00)80072-X.
D. Freude, H. Ernst, M. Hunger, H. Pfeifer, E. Jahn, Magic-angle spinning NMR studies of zeolites SAPO-5, Chem. Phys. Lett. 143 (1988) 477-481, DOI: 10.1016/0009-2614(88)87399-8.
M. Hunger, D. Freude, H. Pfeifer, 1H MAS NMR studies of acid sites in ZSM-5 type zeolites, Catal. Today 3 (1988) 507-512, DOI: 10.1016/0920-5861(88)87035-4.
1987
D. Freude, M. Hunger, H. Pfeifer, Investigation of acidic properties of zeolites by MAS NMR, Z. Phys. Chem. (NF) 152 (1987) 171-182, DOI: 10.1524/zpch.1987.152.Part_1_2.171.
U. Lohse, E. Loeffler, M. Hunger, J. Stoeckner, V. Patzelova, Hydroxyl groups of the non-framework aluminium species in dealuminated Y zeolites, Zeolites 7 (1987) 11-13, DOI: 10.1016/0144-2449(87)90111-4.
M. Hunger, D. Freude, T. Froehlich, H. Pfeifer, W. Schwieger, 1H MAS NMR studies of ZSM-5 type zeolites, Zeolites 7 (1987) 108-110, DOI: 10.1016/0144-2449(87)90068-6.
H. Ernst, D. Freude, M. Hunger, H. Pfeifer, B. Seiffert, High-resolution 1H nuclear magnetic resonance of various aluminosilicate catalysts treated with ammonia, Z. Phys. Chem. (Leipzig) 268 (1987) 304-314.
M. Hunger, J. Kaerger, H. Pfeifer, J. Caro, B. Zibrowius, M. Buelow, R. Mostowicz, Investigation of internal silanol groups as structural defects in ZSM-5 type zeolites, J. Chem. Soc., Faraday Trans. 1, 83 (1987) 3459-3468, DOI: 10.1039/f19878303459.
J. Caro, M. Buelow, J. Richter-Mendau, J. Kaerger, M. Hunger, D. Freude, L.V.C. Rees, Nuclear magnetic resonance self-diffusion studies of methanol-water mixtures in pentasil-type zeolites, J. Chem. Soc., Faraday Trans. 1, 83 (1987) 1843-1849, DOI: 10.1039/f19878301843.
1986
J. Kutscher, H. Pfeifer, M. Hunger, J. Hellebrand, Investigation of imbibed water in wheat grains by pulsed 1H NMR, Exp. Techn. Phys. 34 (1986) 113-122.
D. Freude, M. Hunger, H. Pfeifer, W. Schwieger, 1H MAS NMR studies on the acidity of zeolites, Chem. Phys. Lett. 128 (1986) 62-66, DOI: 10.1016/0009-2614(86)80146-4.
1985
H. Pfeifer, D. Freude, M. Hunger, Nuclear magnetic resonance studies on the acidity of zeolites and related catalysts, Zeolites 5 (1985) 274-286, DOI: 10.1016/0144-2449(85)90158-7.
1984
D. Freude, M. Hunger, H. Pfeifer, G. Scheler, J. Hoffmann, W. Schmitz, Highly resolved proton magnetic resonance spectra of hydrogen-zeolites, Chem. Phys. Lett. 105 (1984) 427-430, DOI: 10.1016/0009-2614(84)80055-X.
1983
M. Hunger, D. Freude, H. Pfeifer, H. Bremer, M. Jank, K.-P. Wendlandt, High-resolution proton magnetic resonance and catalytic studies concerning Broensted centers of amorphous Al2O3-SiO2 solids, Chem. Phys. Lett. 100 (1983) 29-33, DOI: 10.1016/0009-2614(83)87256-X.
D. Freude, T. Froehlich, M. Hunger, H. Pfeifer, G. Scheler, NMR studies concerning the dehydroxylation of zeolites HY, Chem. Phys. Lett. 98 (1983) 263-266, DOI: 10.1016/0009-2614(83)87162-0.
1982
D. Freude, M. Hunger, H. Pfeifer, Study of Broensted acidity of zeolites using high- resolution proton magnetic resonance with magic-angle spinning, Chem. Phys. Lett. 91 (1982) 307-310, DOI: 10.1016/0009-2614(82)80162-0.