IR spectra of zeolites recorded at liquid helium temperature

被引：0

作者：

Datka, J ^{[1
]}

Góra-Marek, K ^{[1
]}

机构：

[1] Jagiellonian Univ, Fac Chem, PL-30060 Krakow, Poland

来源：

RECENT ADVANCES IN THE SCIENCE AND TECHNOLOGY OF ZEOLITES AND RELATED MATERIALS, PTS A - C | 2004年 / 154卷

关键词：

IR spectroscopy; low temperatures; zeolites; skeletal vibrations;

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Lowering the temperature narrows IR bands and improves apparent spectral resolution of solids, We studied the spectra of. mordenite, mazzite, faujasite, TON (all of them of high Si/Al), silicalite, as well as two SiO2 materials (inesoporous MCM-41 and amorphous SiO2) at liquid helium temperature. IR spectra recorded at liquid helium temperature inform on crystlographically non-equivalent oxygen atoms in zeolite structure, and this knowledge is complementary to that obtained fro M Si-29 MAS NMR studies, which inform on crystalographically non-equivalent Si atoms. In the future the analysis of low temperature IR spectra call inform how various factors, Such as the presence of reactant molecules, call affect various oxygen atoms in zeolite framework.

引用

页码：1369 / 1374

页数：6