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Microporous crystal

B. Notad, ia Chemistry of Microporous Crystals, Kodansha, Tokyo, Japan, 1991, p. 343. [Pg.184]

Volume 60 Chemistry of Microporous Crystals. Proceedings of the International Symposium on Chemistry of Microporous Crystals, Tokyo, June 26-29,1990 edited by T. Inui,S. Namba andT. Tatsumi... [Pg.264]

Volume 60 Chemistry of Microporous Crystals. Proceedings of the International Symposium... [Pg.890]

Symposium on Zeolites and Microporous Crystals, Nagoya, Japan, August... [Pg.404]

Porous materials are elassified into three different categories based on the size of pores rpore, that is, microporous for rpore < 20 A, mesoporous for 20 A< Tpore < 500 A, and macroporous for rpote > 500 A. Here I will discuss micro- and meso-porous materials. Microporous crystals (hereafter called zeolites) with more than 150 different framework-type stmctures have been reported. [Pg.435]

New Families of M(III)X(V)04-Type Microporous Crystals and Inclusion Compounds... [Pg.63]

It is expected that due to the discrepancy between Al(II) and Ga(l) as well as that between P(V) and As(V), the four families should behave differently to a certain degree in both structure and property. This paper will attempt to explore the structural features and the crystal chemistry of M(I)X(V)04-type microporous crystals and/or inclusion compounds on the basis of the new families GaPO s, AlAsO s and GaAsO s in combination with the well known AlPO s. [Pg.64]

Use of organic templates In the current preparation of a new series of microporous crystals, organic templates are often used. Organic chemicals are also used in the preparation of pillared clays to control the pore sizes and the porosity as follows The interlayer cations of silicate layer are exchanged with positively charged sol particles, and then a part of the sols are exchanged with organic template cations such as octadecyl trimethyl ammonium (OTMA). [Pg.92]

Fig. 5 (a) shows the nitrogen adsorption isotherms of aluminum hydroxy pillared clays after heat-treatment at 300-500°C. These are of the typical Langmuir type isotherm for microporous crystals. Fig, 5 (b) shows the water adsorption isotherms on the same Al-hydroxy pillared clays [27]. Unlike the water adsorption isotherms for hydrophilic zeolites, such as zeolites X and A, apparently these isotherms cannot be explained by Langmuir nor BET adsorption equations the water adsorption in the early stages is greatly suppressed, and shows hydrophobicity. Water adsorption isotherms for several microporous crystals [20] are compared with that of the alumina pillared clay in Fig. 6. Zeolites NaX and 4A have very steep Langmuir type adsorption isotherms, while new microporous crystals such as silicalite and AlPO -S having no cations in the... Fig. 5 (a) shows the nitrogen adsorption isotherms of aluminum hydroxy pillared clays after heat-treatment at 300-500°C. These are of the typical Langmuir type isotherm for microporous crystals. Fig, 5 (b) shows the water adsorption isotherms on the same Al-hydroxy pillared clays [27]. Unlike the water adsorption isotherms for hydrophilic zeolites, such as zeolites X and A, apparently these isotherms cannot be explained by Langmuir nor BET adsorption equations the water adsorption in the early stages is greatly suppressed, and shows hydrophobicity. Water adsorption isotherms for several microporous crystals [20] are compared with that of the alumina pillared clay in Fig. 6. Zeolites NaX and 4A have very steep Langmuir type adsorption isotherms, while new microporous crystals such as silicalite and AlPO -S having no cations in the...
PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON CHEMISTRY OF MICROPOROUS CRYSTALS, TOKYO,... [Pg.394]

This volume is a collection of 14 plenary lectures and 25 invited and contributed papers presented at the International Symposium on Chemistry of Microporous Crystals (CMPC) held at Sophia University in Tokyo, Japan, June, 26-29, 1990. The symposium was organized by the Japan Association of Zeolite in collaboration with twelve major academic Japanese societies dealing with the chemistry of microporous crystals. The symposium was attended by over 250 researchers from 13 countries. [Pg.410]

Y. Sugi, T. Matsuzaki, T. Hanaoka, K. Takeuchi, T. Tokoro, and G. Takeuchi, in Chemistry of Microporous Crystals (Stud. Surf. Sci, Catal., vol. 60), ed. T. Inui, S. Namba, and T. Tatsumi, Kodansha-Elsevier, Tokyo-Amsterdam, 1991, p.303. [Pg.82]

See other pages where Microporous crystal is mentioned: [Pg.34]    [Pg.35]    [Pg.890]    [Pg.891]    [Pg.404]    [Pg.412]    [Pg.229]    [Pg.253]    [Pg.439]    [Pg.65]    [Pg.67]    [Pg.69]    [Pg.71]    [Pg.89]    [Pg.189]    [Pg.371]    [Pg.389]    [Pg.391]    [Pg.392]    [Pg.394]    [Pg.172]    [Pg.264]    [Pg.82]   
See also in sourсe #XX -- [ Pg.300 , Pg.302 , Pg.305 ]



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