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Unraveling the perplexing structure of the zeolite SSZ-57
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SYSNO ASEP 0365564 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Unraveling the perplexing structure of the zeolite SSZ-57 Tvůrce(i) Baerlocher, Ch. (CH)
Weber, T. (CH)
McCusker, L.B. (CH)
Palatinus, Lukáš (FZU-D) RID, ORCID
Zones, S. I. (US)Zdroj.dok. Science. - : American Association for the Advancement of Science - ISSN 0036-8075
Roč. 333, č. 6046 (2011), 1134-1137Poč.str. 4 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova zeolite ; disorder ; superspace ; Monte Carlo simulation ; diffuse scattering Vědní obor RIV BM - Fyzika pevných látek a magnetismus CEZ AV0Z10100521 - FZU-D (2005-2011) UT WOS 000294244300045 DOI 10.1126/science.1207466 Anotace Previous high-resolution x-ray powder diffraction and transmission electron microscopy studies of the zeolite SSZ-57 could not fully elucidate the structural basis for its puzzling adsorption behavior, which appears to be intermediate between that of a medium- (10-ring) and a large-pore (12-ring) zeolite. Now by applying advanced crystallographic techniques and crystal chemistry considerations to high-quality single-crystal x-ray diffraction data collected on a microcrystal (about 2 micrometers by 2 micrometers by 8 micrometers), we have been able to derive a comprehensive description of its silicate framework structure.The framework is related to that of ZSM-11 but is commensurately modulated along the c axis to yield a structure with a 12-ring:10-ring ratio of 1:15. Disorder of the 12-rings results in a three-dimensional 10-ring channel system with large isolated pockets. The structure helps to clarify the material´s catalytic activity. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2012
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