期刊
MATERIALS LETTERS
卷 59, 期 11, 页码 1356-1360出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2004.12.042
关键词
ceramic; asymmetric membrane; oxygen permeation; SrFeCo0.5Ox; carbon fiber; ethyl cellulose
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.
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