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Journal of Nanomaterials
Volume 2013 (2013), Article ID 157474, 6 pages
http://dx.doi.org/10.1155/2013/157474
Research Article

Preparation and Oxygen Permeability of BaCo0.7Fe0.2Nb0.1O3-δ Membrane Modified by Ce0.8Y0.2O2-δ Porous Layer on the Air Side

1School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
2Nano Science and Technology Research Center, Shanghai University, Shanghai 200444, China

Received 31 August 2013; Accepted 10 October 2013

Academic Editor: Amirkianoosh Kiani

Copyright © 2013 Yuan Qiang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

(BCFN) dense ceramic membrane with submicron- (YDC) porous layer was investigated by the partial oxidation of coke oven gas (COG) in hydrogen production. XRD analysis showed this composite had good stability and no chemical reaction at high temperature. SEM and TEM characterization further showed BCFN membrane was uniformly modified by YDC porous layer (about 5~6 μm thickness) formed by the accumulation of relative nanoparticles. At the respective COG flux and air flux of 108 mL/min and 173 mL/min, the oxygen permeation flux of BCFN modified by submicron-YDC porous layer reached 16.62 mL min−1 cm−2, which was about 23.5% higher than that of pure BCFN membrane. Therefore, submicron-YDC porous layer obviously improved the oxygen permeation flux of BCFN membrane and its stability at 875°C.