Synthesis and characterization of organoamine-functionalized amorphous silica materials for CO2-selective membranes

Zineb MOULINE; Kota ASAI; Akira KAWAI; Koichiro SEKIMOTO; Takahiro ONISHI; Yusuke DAIKO; Sawao HONDA; Yuji IWAMOTO

doi:10.2109/jcersj2.123.779

Feature: Trends of Current Research on Organic-Inorganic Hybrid Materials: Papers

Synthesis and characterization of organoamine-functionalized amorphous silica materials for CO₂-selective membranes

Zineb MOULINE, Kota ASAI, Akira KAWAI, Koichiro SEKIMOTO, Takahiro ONISHI, Yusuke DAIKO, Sawao HONDA, Yuji IWAMOTO

Author information

Zineb MOULINE
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
Kota ASAI
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
Akira KAWAI
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
Koichiro SEKIMOTO
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
Takahiro ONISHI
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
Yusuke DAIKO
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
Sawao HONDA
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
Yuji IWAMOTO
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology

Keywords: Organoamine-modified silica, Perhydropolysilazane, Polymer-derived ceramics, Carbon dioxide, Membrane, Gas separation, Facilitated transport

JOURNAL FREE ACCESS

2015 Volume 123 Issue 1441 Pages 779-784

DOI https://doi.org/10.2109/jcersj2.123.779

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Abstract

Amorphous silica-based organoamine-functionalized hybrid materials were designed through polymer-derived ceramics (PDCs) route, in order to selectively transport CO₂. Silicon-based perhydropolysilazane (PHPS) polymer was chemically modified with an alkylamino silane derivative, and subsequently oxidized in air at room temperature to afford organoamine-functionalized silica. The effect of the organoamine functionalization in the powdered sample as well as for the membrane is discussed with regard to the pure PHPS-derived amorphous silica.

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