Silica sodalite without occluded organic matters by topotactic conversion of lamellar precursor

Takahiko Moteki, Watcharop Chaikittisilp, Atsushi Shimojima, Tatsuya Okubo

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

Novel pure silica sodalite with hollow sodalite-cages has been synthesized for the first time by topotactic conversion of layered silicate (RUB-15) precursor. This success has been achieved by stepwise syntheses from silicate monomers, through clusters and layers, to microporous crystals. The pretreatment of layered silicate with small carboxylic acids before conversion is a crucial step. The obtained sodalite possesses accessible micropores, as confirmed by physical adsorption of hydrogen molecules. This plate-like silica sodalite would be very promising as fillers in mixed-matrix membranes for hydrogen separation.

Original languageEnglish
Pages (from-to)15780-15781
Number of pages2
JournalJournal of the American Chemical Society
Volume130
Issue number47
DOIs
Publication statusPublished - 2008 Nov 26
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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