In situ MAS 13C-NMR studies of surface intermediates formed upon interaction of CCl2F2 (CFC-12) with NaY-FAU and HZSM-5-MFI zeolites

I. Hannus, I. Kiricsi, P. Lentz, J. B. Nagy

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

23Na, 27Al, 29Si and 13C-MAS NMR techniques were used for investigation of heterogeneous transformation of CCl2F2 over NaY-FAU and HZSM-5-MFI zeolites. We established that CCl2F2 decomposes generating CCl4 and COCl2 as surface intermediates and CO2 as final product. During the reaction, irreversible structural changes occur in the zeolite framework.

Original languageEnglish
Pages (from-to)35-42
Number of pages8
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume158
Issue number1
DOIs
Publication statusPublished - Dec 1 1999
EventProceedings of the 1998 8th International Symposium in Colloid and Interface Sciences - Namur, Belgium
Duration: May 24 1998May 29 1998

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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