M. Weihe, M. Hunger, M. Breuninger, H.G. Karge and J. Weitkamp: Influence of the nature of residual alkali cations on the catalytic activity of zeolites X, Y, and EMT in their Bronsted acid forms. Journal of Catalysis198 (2), 256–265 (2001).
U. Brenn, H. Ernst, D. Freude, R. Herrmann, R. Jähnig, H.G. Karge, J. Kärger, T. König, B. Mädler, U.T. Pingel, D. Prochnow and W. Schwieger: Synthesis and characterization of the layered sodium silicate ilerite. Microporous and Mesoporous Materials40 (1-3), 43–52 (2000).
P. Concepcion-Heydorn, C. Jia, D. Herein, N. Pfänder, H.G. Karge and F.C. Jentoft: Structural and Catalytic Properties of Sodium and Cesium Exchanged X and Y Zeolites, and Germanium-Substituted X Zeolite. Journal of Molecular Catalysis A162 (1-2), 227–246 (2000).
N. Arsenova-Härtel, H. Bludau, W.O. Haag and H.G. Karge: Influence of the zeolite pore structure on the kinetics of the disproportionation of ethylbenzene. Microporous and Mesoporous Materials35-36, 113–119 (2000).
R. Schumacher, K. Ehrhardt and H.G. Karge: Determination of Diffusion Coefficients from Sorption Kinetic Measurements Considering the Influence of Nonideal Gas Expansion. Langmuir15 (11), 3965–3971 (1999).
R. Schumacher, K. Ehrhardt and H.G. Karge: Determination of diffusion coefficients from sorption kinetics measurements considering the influence of nonideal gas expansion. Langmuir15 (11), 3965–3971 (1999).
R. Schumacher and H.G. Karge: Sorption and Sorption Kinetics of Ethylbenzene in MFI-Type Zeolites Studied by a Barometric Technique. Collection of Czechoslovak Chemical Communications64 (3), 483–494 (1999).
V.B. Kazansky, V.Y. Borovkov and H.G. Karge: Diffuse Reflectance IR Study of Molecular Hydrogen and Deuterium Adsorbed at 77 K on NaA Zeolite Part 2. Overtone, Combination and Vibration-Rotational Modes and Thermodesorption from NaA Zeolite. Zeitschrift für Physikalische Chemie211 (1), 1–12 (1999).
N. Arsenova-Härtel, H. Bludau, W.O. Haag and H.G. Karge: In situ IR spectroscopic study of the adsorption behaviour of ethylbenzene and diethylbenzenes related to ethylbenzene disproportionation over HY zeolite. Microporous and Mesoporous Materials23 (1-2), 1–10 (1998).
V.B. Kazansky, V.Y. Borovkov, A.I. Seriykh and H.G. Karge: Low temperature hydrogen adsorption on sodium forms of faujasites: barometric measurements and drift spectra. Microporous and Mesoporous Materials22 (1-3), 251–259 (1998).
V.B. Kazansky, F.C. Jentoft and H.G. Karge: First observation of vibration–rotation drift spectra of para- and ortho-hydrogen adsorbed at 77 K on LiX, NaX and CsX zeolites. Journal of the Chemical Society, Faraday Transactions94 (9), 1347–1351 (1998).
V. Kucherov A, H.G. Karge and R. Schlögl: Quantitative ESR Study of the CuH-ZSM-5 System: Influence of Preparation and pretreatment techniques on the valence state of copper. Microporous and Mesoporous Materials25 (1-3), 7–14 (1998).