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

Takahiko Moteki; Watcharop Chaikittisilp; Atsushi Shimojima; Tatsuya Okubo

doi:10.1021/ja806930h

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

Takahiko Moteki, Watcharop Chaikittisilp, Atsushi Shimojima, Tatsuya Okubo^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

93 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 language	English
Pages (from-to)	15780-15781
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	130
Issue number	47
DOIs	https://doi.org/10.1021/ja806930h
Publication status	Published - 2008 Nov 26
Externally published	Yes

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja806930h

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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.",

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AU - Moteki, Takahiko

AU - Chaikittisilp, Watcharop

AU - Shimojima, Atsushi

AU - Okubo, Tatsuya

PY - 2008/11/26

Y1 - 2008/11/26

N2 - 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.

AB - 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.

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

Abstract

ASJC Scopus subject areas

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