Issue 38, 2014
From the journal:

RSC Advances

La0.6Sr0.4Co0.2Fe0.8O3−δ hollow fibre membrane performance improvement by coating of Ba0.5Sr0.5Co0.9Nb0.1O3−δ porous layer

Dezhi Han,abc   Jinhu Wu,a   Zifeng Yan,*b   Kun Zhang,c   Jian Liuc  and  Shaomin Liu*c  

* Corresponding authors

a Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China

b State Key Laboratory of Heavy Oil Processing, CNPC Key Laboratory of Catalysis, China University of Petroleum, Qingdao 266555, China
E-mail: zfyancat@upc.edu.cn
Fax: +86 532 86981295
Tel: +86 532 86981296

c Department of Chemical Engineering, Curtin University, Perth, WA 6845, Australia
E-mail: shaomin.liu@curtin.edu.au
Tel: +61 8 92669056

Abstract

The oxygen permeation performance of perovskite La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) hollow fibre membranes was enhanced by surface modification via coating of a Ba0.5Sr0.5Co0.9Nb0.1O3−δ (BSCN) porous layer. The hollow fibres were characterized by XRD, SEM and EDS elemental mapping and tested for air separation. Experimental results revealed that the BSCN porous layer had significantly improved the oxygen permeation flux of the coated LSCF hollow fibre membranes. Operated at 950 °C and under the oxygen pressure gradient of the air/sweep gas, the maximum oxygen permeation flux of 1.92 mL cm−2 min−1 was achieved after the hollow fibre membrane was coated by a BSCN porous layer on both outer and inner surfaces. In addition, the modified membrane showed high oxygen permeation stability under the investigated operational conditions.

Graphical abstract: La0.6Sr0.4Co0.2Fe0.8O3−δ hollow fibre membrane performance improvement by coating of Ba0.5Sr0.5Co0.9Nb0.1O3−δ porous layer

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Article information

DOI
https://doi.org/10.1039/C4RA00704B
Article type
Paper
Submitted
24 Jan 2014
Accepted
14 Apr 2014
First published
17 Apr 2014

RSC Adv., 2014,4, 19999-20004

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La0.6Sr0.4Co0.2Fe0.8O3−δ hollow fibre membrane performance improvement by coating of Ba0.5Sr0.5Co0.9Nb0.1O3−δ porous layer

D. Han, J. Wu, Z. Yan, K. Zhang, J. Liu and S. Liu, RSC Adv., 2014, 4, 19999 DOI: 10.1039/C4RA00704B

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