The Variation of XE-129 NMR Chemical-Shifts with Aluminium Content in ZSM-5 and ZSM-11 zeolites

S M ALEXANDER, J M CODDINGTON, Russell Francis Howe

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Abstract

The technique of Xe-129 n.m.r. has been applied to the study of electric field effects in ZSM zeolites. For ZSM zeolites in the acid form, the chemical shift at zero coverage varies with aluminum content. This variation is explained by changes in the effective electric field experienced by xenon within the zeolite pores as the aluminum content and, hence, the proton concentration vary.

Original languageEnglish
Pages (from-to)368-370
Number of pages3
JournalZeolites
Volume11
Issue number4
DOIs
Publication statusPublished - Apr 1991

Keywords

  • XE-129 NMR
  • ZSM-5
  • ZSM-11
  • electric fields
  • model-calculations
  • field

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