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Catalytic Effects of Barium Carbonate on the Anodic Performance of Solid Oxide Fuel Cells

  • Yoon, Sung-Eun (Department of Material Science and Engineering, Myongji University) ;
  • Ahn, Jae-Yeong (Department of Material Science and Engineering, Myongji University) ;
  • Park, Jong-Sung (Department of Material Science and Engineering, Myongji University)
  • Received : 2015.07.30
  • Accepted : 2015.09.11
  • Published : 2015.09.30

Abstract

To develop ceramic composite anodes of solid oxide fuel cells without metal catalysts, a small amount of barium carbonate was added to an $(La_{0.8}Sr_{0.2})(Cr_{0.5}Mn_{0.5})O_3(LSCM)$ - YSZ ceramic composite anode and its catalytic effects on the electrode performance were investigated. A barium precursor solution with citric acid was used to synthesize the barium carbonate during ignition, while a barium precursor solution without citric acid was used to create hydrated barium hydroxide. The addition of barium carbonate to the ceramic composite anode caused stable fuel cell performance at 1073 K; this performance was higher than that of a fuel cell with $CeO_2$ catalyst; however, the addition of hydrated barium hydroxide to the ceramic composite anode caused poor stability of the fuel cell performance.

Keywords

Ceramic catalysts;Ceramic composite anode;Barium carbonate;Solid oxide fuel cells

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