Systematics in the enthalpies of formation of anhydrous aluminosilicate zeolites, glasses, and dense phases

Alexandra Navrotsky, Zheng Rong Tian

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

A wealth of anhydrous zeolitic, glassy and dense aluminosilicate phases (see figure) have varying Al/Si ratios and cation contents. The enthalpies of formation of all these materials can be predicted using data for a few selected phases and crystal chemical systematics. The energy associated with the substitution of silicon by aluminum and a charge balancing cation depends strongly on the ionic potential of the cation but only weakly on the type of framework or whether the material is crystalline or glassy. Data for glasses can be used to estimate thermodynamic parameters for anhydrous zeolites.

Original languageEnglish (US)
Pages (from-to)769-774
Number of pages6
JournalChemistry - A European Journal
Volume7
Issue number4
DOIs
StatePublished - Feb 16 2001
Externally publishedYes

Keywords

  • Aluminosilicate
  • Enthalpy
  • Glasses
  • Thermodynamics
  • Zeolites

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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