Improving oxygen permeability in SrFeCo0.5Ox asymmetric membranes by modifying support-layer porous structure

被引：32

作者：

Ikeguchi, M

Ishii, K

Sekine, Y

Kikuchi, E

Matsukata, M

机构：

[1] Waseda Univ, Dept Appl Chem, Shinjuku Ku, Tokyo 1698555, Japan

[2] Waseda Univ, Adv Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan

来源：

MATERIALS LETTERS | 2005年 / 59卷 / 11期

基金：

日本学术振兴会;

关键词：

ceramic; asymmetric membrane; oxygen permeation; SrFeCo0.5Ox; carbon fiber; ethyl cellulose;

D O I：

10.1016/j.matlet.2004.12.042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Disk-type SrFeCo0.50Ox, asymmetric membranes were prepared for high-temperature oxygen separation using both a previously reported solid state technique in which ethyl cellulose is introduced and then removed by calcination to produce a porous support layer and a modified technique in which carbon fiber is added to the ethyl cellulose. The oxygen permeabilities of the resulting SrFeCo0.50Ox asymmetric membranes were measured at 973-1173 K. The addition of carbon fiber to ethyl cellulose resulted in the improvement of gas diffusivity in the porous support layer, which increased the flux of oxygen through the modified asymmetric membrane. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1356 / 1360

页数：5

共 14 条

[1] Ceramic membrane reactor for converting methane to syngas [J].