Design of Silica Networks for Development of Highly Permeable Hydrogen Separation Membranes with Hydrothermal Stability
Design of Silica Networks for Development of Highly Permeable Hydrogen Separation Membranes with Hydrothermal Stability
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DOI：
10.1021/ja806762q
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发表时间：
2009-01-21
影响因子：
15
通讯作者：
Tsuru, Toshinori
中科院分区：
文献类型：
--
作者：
Kanezashi, Masakoto;Yada, Kazuya;Tsuru, Toshinori
采用溶胶-凝胶法制备了以双（三乙氧基硅基）乙烷（BTESE）为前驱体的高透氢分离膜。杂化二氧化硅膜由于具有松散的有机-无机硅网络，具有很高的氢透性(1 × 10(-5) mol m（-2) s(-1) Pa-1）和1000的H-2-to-SF6选择性。杂化二氧化硅膜表现出较高的热液特性。由于硅网络中存在Si-C-C-Si键而具有稳定性。
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-SF6 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.