Solid state reactions between sodium azide and zeolites

Research output: Contribution to journalArticle

Abstract

Thermogravimetry and infrared spectroscopy were applied to study the reactions of solid NaN3 within Na- or Fe-forms of X, mordenite and ZSM-5 zeolite structures. Zeolite-bound water was found to hydrolyze NaN 3 at lower temperature than its thermal decomposition. Hydrazoic acid and NaOH was formed in the reaction with water molecule, bound to both type of the metal cations in different zeolites. The rates of these processes are controlled by the rate of sodium azide transport within the zeolite micropores and characteristic for the zeolite structures investigated. The rest of NaN 3, not consumed in mentioned reaction can only decompose at about 400-490 °C to nitrogen and metallic sodium in situ formed which is able to reduce ferric ions to iron nanoclusters.

Original languageEnglish
Pages (from-to)3044-3051
Number of pages8
JournalStudies in Surface Science and Catalysis
Volume154 C
Publication statusPublished - Jan 1 2004

Keywords

  • Hydrazoic acid
  • Na- and Fe-Zeolites
  • Sodium azide decomposition
  • Zeolite-bound water

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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