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Russian Chemical Bulletin

, Volume 66, Issue 11, pp 2021–2027 | Cite as

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

  • O. A. Ponomareva
  • P. A. Kots
  • Yu. G. Kolyagin
  • V. V. Chernyshev
  • I. I. Ivanova
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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.

Key words

FAU(Y) ion exchange cesium magic-angle spinning NMR spectroscopy powder X-ray diffraction 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2017

Authors and Affiliations

  • O. A. Ponomareva
    • 1
    • 2
  • P. A. Kots
    • 1
  • Yu. G. Kolyagin
    • 1
    • 2
  • V. V. Chernyshev
    • 1
  • I. I. Ivanova
    • 1
    • 2
  1. 1.Department of ChemistryM. V. Lomonosov Moscow State UniversityMoscowRussian Federation
  2. 2.A. V. Topchiev Institute of Petrochemical SynthesisRussian Academy of SciencesMoscowRussian Federation

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