Novel Ba0.5Sr0.5Fe0.8Zn0.2O3-δ membranes for POM

Hui Xia Luo Ling Hui Yu Xin Zhi Chen Hai Hui Wang JÜrgen Caro

引用本文: Hui Xia Luo,  Ling Hui Yu,  Xin Zhi Chen,  Hai Hui Wang,  JÜrgen Caro. Novel Ba0.5Sr0.5Fe0.8Zn0.2O3-δ membranes for POM[J]. Chinese Chemical Letters, 2009, 20(2): 250-252. doi: 10.1016/j.cclet.2008.10.011 shu
Citation:  Hui Xia Luo,  Ling Hui Yu,  Xin Zhi Chen,  Hai Hui Wang,  JÜrgen Caro. Novel Ba0.5Sr0.5Fe0.8Zn0.2O3-δ membranes for POM[J]. Chinese Chemical Letters, 2009, 20(2): 250-252. doi: 10.1016/j.cclet.2008.10.011 shu

Novel Ba0.5Sr0.5Fe0.8Zn0.2O3-δ membranes for POM

  • 基金项目:

    This work was supported by Program for New Century Excellent Talents in Chinese Ministry of Education (No. NECT-07-0307), the Natural Science Foundation of Guangdong province (No. 7300769), Fok Ying Tung Education Foundation (No. 114019) and New Teacher Fund of Ministry of Education of China (No. 20070561032).

摘要: A novel cobalt-free perovskite based on Ba0.5Sr0.5Fe0.8Zn0.2O3-δ (BSFZ) were prepared by EDTA-citric acid method. The lattice constants of the BSFZ perovskite were characterized by in situ high-temperature X-ray diffraction (HTXRD). The thermal expansion coefficient of BSFZ is 10.5×10-6 K-1, which is lower than that of cobalt-based perovskite materials. The BSFZ membrane was also used to construct reactors for the partial oxidation of methane (POM) to syngas. Results show that the BSFZ membrane can be operated for the POM reaction for more than 100 h without any fractures. The CO selectivity of 97% is obtained.The steady oxygen permeation flux reaches around 2.5 mL/min cm2 during POM reaction.

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  • 收稿日期:  2008-06-27
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