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

76 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

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Silicates
Silicon Dioxide
Biological materials
Silica
Hydrogen
Carboxylic Acids
Carboxylic acids
Adsorption
Fillers
Monomers
Membranes
Crystals
Molecules

ASJC Scopus subject areas

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

Cite this

Silica sodalite without occluded organic matters by topotactic conversion of lamellar precursor. / Moteki, Takahiko; Chaikittisilp, Watcharop; Shimojima, Atsushi; Okubo, Tatsuya.

In: Journal of the American Chemical Society, Vol. 130, No. 47, 26.11.2008, p. 15780-15781.

Research output: Contribution to journalArticle

Moteki, Takahiko ; Chaikittisilp, Watcharop ; Shimojima, Atsushi ; Okubo, Tatsuya. / Silica sodalite without occluded organic matters by topotactic conversion of lamellar precursor. In: Journal of the American Chemical Society. 2008 ; Vol. 130, No. 47. pp. 15780-15781.
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