The effect of dehydration on the position of cesium cations in the structure of CsNaFAU(Y) studied by powder X-ray diffraction and magic-angle spinning NMR spectroscopy期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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The effect of dehydration on the position of cesium cations in the structure of CsNaFAU(Y) studied by powder X-ray diffraction and magic-angle spinning NMR spectroscopy

Authors:	Email author" target="_blank">O?A?Ponomareva Email author P?A?Kots Yu?G?Kolyagin V?V?Chernyshev I?I?Ivanova

Institution:	1.Department of Chemistry,M. V. Lomonosov Moscow State University,Moscow,Russian Federation;2.A. V. Topchiev Institute of Petrochemical Synthesis,Russian Academy of Sciences,Moscow,Russian Federation

Abstract:	The influence of dehydration on the position of sodium and cesium cations obtained by ion exchange in the structure of FAU(Y) was studied by powder X-ray diffraction using synchrotron radiation and ²³Na and ¹³³Cs magic-angle spinning NMR spectroscopy. The sodium and cesium cations were found to be mobile in the hydrated samples. In dehydrated zeolites CsNaFAU(Y), cesium is predominantly localized in four crystallographic ion-exchange positions located in the large cavities and sodalite cages.

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