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Journal of Inorganic Materials

Journal of Inorganic Materials >

2010 , Vol. 15 >Issue 2: 221 - 224

DOI: https://doi.org/10.3724/SP.J.1077.2009.09474

Research Letter

Improving the Oxygen Permeability of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Membranes by Laser Ablation

  • SHEN Zi-Gang
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  • (1. School of Physical Engineering and Material Physics Laboratory, Zhengzhou University, Zhengzhou 450045, China; 2. College of Materials Science and Engineering, Henan University of Technology, Zhengzhou 450007, China)

Received date: 2009-07-07

  Revised date: 2009-09-17

  Online published: 2010-02-20

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Abstract

The surfaces of Ba0.5Sr0.5Co0.8Fe0.2O3-δ(BSCFO) membranes were decorated by laser ablation treatment in order to increase the specific surface of the membrane surface, and laser ablation treatment could improve the ability of oxygen surface exchange and enhance the oxygen permeation flux of the membranes. The arc shape stripes with width about 150µm and depth about 25µm increase the specific surface of the membrane surface significantly, which were made by laser ablation treatment. XRD patterns show that the BSCFO phase structure is kept after laser ablation treatment. The oxygen permeation fluxes through the membranes after laser ablation treatment are enhanced, and laser ablation treatment with cross stripes pattern on both sides of the membranes has a signification impact on the oxygen permeation flux. The oxygen permeation flux through the membrane with cross stripes pattern on both sides is 34% higher than that through membranes without laser ablation treatment.

Key words： oxygen permeation membrane; laser ablation; specific surface; oxygen permeation flux

Cite this article

SHEN Zi-Gang . Improving the Oxygen Permeability of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Membranes by Laser Ablation[J]. Journal of Inorganic Materials, 2010 , 15(2) : 221 -224 . DOI: 10.3724/SP.J.1077.2009.09474

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