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Article Navigation >  Green Energy&Environment  > 2018  >  3(1): 78-85
Yajun Zhao, Tao Liu, Qiufan Shi, Qingchun Yang, Chunxiao Li, Dawei Zhang, Chaofeng Zhang. Perovskite oxides La0.4Sr0.6CoxMn1-xO3 (x = 0, 0.2, 0.4) as an effective electrocatalyst for lithium—air batteries. Green Energy&Environment, 2018, 3(1): 78-85. doi: 10.1016/j.gee.2017.12.001
Citation: Yajun Zhao, Tao Liu, Qiufan Shi, Qingchun Yang, Chunxiao Li, Dawei Zhang, Chaofeng Zhang. Perovskite oxides La0.4Sr0.6CoxMn1-xO3 (x = 0, 0.2, 0.4) as an effective electrocatalyst for lithium—air batteries. Green Energy&Environment, 2018, 3(1): 78-85. doi: 10.1016/j.gee.2017.12.001
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Perovskite oxides La0.4Sr0.6CoxMn1-xO3 (x = 0, 0.2, 0.4) as an effective electrocatalyst for lithium—air batteries

doi: 10.1016/j.gee.2017.12.001

  • School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, China

More Information
  • Corresponding author: E-mail address: zhangdw@ustc.edu.cn (Dawei Zhang); E-mail address: czhang@hfut.edu.cn (Chaofeng Zhang)
  • Received date 20 November 2017, Accepted date 12 December 2017, RevRecd date 11 December 2017, Available online 16 December 2017, Publish date 31 January 2018,
    Abstract
  • Co-doped perovskite oxide La0.4Sr0.6CoxMn1-xO3 (x = 0, 0.2, 0.4) composites are prepared by sol–gel method utilizing citric acid as chelating agent. These composites show good catalytic activities when tested as catalysts rechargeable lithium—air batteries. In particular, the La 0.4Sr0.6Co0.4Mn0.6O3 shows a lower potential gap. When these samples are tested as catalysts for Li—air batteries at a current density of 100 mA g−1, the discharge capacities with different La0.4Sr0.6CoxMn1-xO3 (x = 0, 0.2, 0.4) catalysts are 5819, 6420, and 7227 mA h g−1, respectively. In addition, under a capacity limitation of 1000 mA h g−1, the cell using La0.4Sr0.6Co0.4Mn0.6O3 as catalyst shows good cycling stability up to 46 cycles. The good electrochemical performance suggests that suitable doping of Co in Mn site of La0.4Sr0.6MnO3 could be a promising route to improve the catalytic activity.

     

    • The two authors contributed equally to this work.
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