Abstract
Aluminium-free layered silicate hydrates (metal silicate hydrates — M-SH) are an interesting supplement to the well-known zeolite-like porous materials, due to their large number of catalytic, adsorptive and ion-exchange properties. By means of a combination of X-ray diffraction investigations and several thermo-analytic methods (TG, DSC, TMA) it could be shown that the properties of magadiite will be influenced by the cations located in the interlayer and the morphology of the as-synthesized magadiite products. In particular, hydration behaviour and phase transformation behaviour of the magadiite will be affected. Thus, H- and Ce-magadiite are stable up to temperatures of about 800‡C, while the as-synthesized Na-forms will loss water irreversible already at about 200‡C, will be dehydroxylated, and will be decomposed structurally at about 400‡C.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literatur
G. Lagaly, K. Beneke und A. Weiss, Am. Miner., 60 (1975) 642.
K.-H. Bergk, W. Schwieger und M. Porsch, Chem. Techn., 39 (1987) 456 und 508.
W. Schwieger, W. Heyer und K.-H. Bergk, Z. anorg. allg. Chem., 559 (1988) 191.
K. Beneke und G. Lagaly, Am. Miner., 62 (1977) 763.
W. Schwieger, K.-H. Bergk, M. Weise, D. Heidemann, M. Hunger und M. Porsch, DD - WP 257 629 (1987).
H.P. Eugster, Science, 157 (1967) 1177.
Z. Johan und G. F. Maglione, Bull. Soc. fr. Miner. Crystallgr., 95 (1972) 371.
R. A. Sheppard, A. J. Gude und R. L. Hay, Am. Miner., 55 (1970) 358.
K.-H. Bergk, P. Grabner und W. Schwieger, Z. anorg. allg. Chem., 600 (1991) 139.
W. Schwieger, W. Heyer und K.-H. Bergk, Z. anorg. allg. Chem., 559 (1988) 191.
A. Brandt, W. Schwieger und K.-H. Bergk, Revue de Chimie minérale, 24 (1987) 564.
W. Schwieger, D. Heidemann und K.-H. Bergk, Revue de Chim. Miner., 22 (1985) 639.
T. J. Pinnavaia, Science 220 (1983) 365.
H. Annehed, L. Fälth und F. J. Lincoln, Z. Kristallogr., 159 (1982) 203.
T. J. Pinnavaia, I. D. Johnson und M. Lipsicas, J. Solid State Chem., 63 (1986) 118.
W. Schwieger, Nova Acta Leopoldina, 1995, (in press).
H.-P. Rieck, EP 0 164 514 B 1 (1989).
W. Schwieger, W. Heyer, F. Wolf und K.-H. Bergk, Z. anorg. allg. Chem., 548 (1987) 204.
W. Schwieger, K. H. Bergk, W. Reschetilowski und K.-P. Wendlandt, Z. Chem., 28 (1988) 107.
G. Lagaly und K. Beneke, DE-OS 31 23 000.
H. K. Näser, Physikalische Chemie, Verlag für Grundstoffindustrie, Leipzig, 1979.
Author information
Authors and Affiliations
Additional information
Professor Hans-Joachim Seifert zum 65, Geburtstage gewidmet
Rights and permissions
About this article
Cite this article
Schwieger, W., Grabner, P., Utschick, H. et al. Thermoanalytische Untersuchungen an aluminiumfreien Schichtsilikaten. Journal of Thermal Analysis 47, 407–418 (1996). https://doi.org/10.1007/BF01983982
Issue Date:
DOI: https://doi.org/10.1007/BF01983982