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1992 / 1991
 

 

B. Zibrowius, E. Löffler, M. Hunger,
Multinuclear MAS NMR and IR spectroscopic study of the silicon in corporation into SAPO-5, SAPO-31 and SAPO-34 molecular sieves, Zeolites 12 1992 167-174.


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.


H. Stach, J. Jänchen, 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.


H. Stach, J. Jänchen, 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.


M. Hunger, D. Freude, H. Pfeifer,
MAS NMR studies of water molecules adsorbed on Brønsted and Lewis acid sites in zeolites and amorphous silica-aluminas, J. Chem. Soc. Faraday Trans. 1, 87 1991 657-662.


E. Brunner, H. Ernst, D. Freude, T. Fröhlich, M. Hunger, H. Pfeifer,
Magic-angle spinning NMR studies of acid sites in zeolite H-ZSM-5, J. Catal. 127 1991 34-41.


B. Zibrowius, E. Löffler, 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.


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.


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.


M. Hunger, D. Freude, H. Pfeifer,
1H-MAS-NMR-Untersuchungen zur Wechselwirkung von Brönsted-Zentren mit Sondenmolekülen, Tagungsbericht 9101, DGMK-Fachbereichstagung, Leipzig, 1991, S. 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.


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.


B. Staudte, M. Hunger, M. Nimz,
1H MAS NMR and NIR studies of aluminium exchanged ZSM-5 zeolites, Zeolites 11 1991 837-841.

 

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