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Updated: Jun 26, 2026
Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
Published on: March 1, 2020
Design of silica networks for development of highly permeable hydrogen separation membranes with hydrothermal
Masakoto Kanezashi1, Kazuya Yada, Tomohisa Yoshioka
1Department of Chemical Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
Abstract:
A sol-gel method was applied for the development of highly permeable hydrogen separation membranes using bis(triethoxysilyl)ethane (BTESE) as a silica precursor. Hybrid silica membranes showed quite high hydrogen permeance (1 x 10(-5) mol m(-2) s(-1) Pa(-1)) with a high H(2)-to-SF(6) selectivity of 1000 because of loose organic-inorganic silica networks. Hybrid silica membranes were found to show high hydrothermal stability due to the presence of Si-C-C-Si bonds in silica networks.
