Oxygen Reduction Reaction of La1-xCaxCoO3 of Gas Diffusion Electrode in Alkaline Fuel Cell

알칼리형 연료전지용 La1-xCaxCoO3 기체확산전극의 산소환원반응

  • Received : 1996.07.27
  • Accepted : 1996.08.04
  • Published : 1996.10.10


The $La_{0.8}Ca_{0.2}CoO_3$ prepared by a citrate process was shown to have higher oxygen reduction current density and specific activity than $LaCoO_3$, $La_{0.6}Ca_{0.4}CoO_3$. In the cyclic voltammogram, an oxygen desorption peak of a $La_{0.8}Ca_{0.2}CoO_3$+carbon electrode was larger than that of a only carbon electrode. $La_{0.8}Ca_{0.2}CoO_3$ sintered at $900^{\circ}C$ for 5 hours was shown high oxygen reduction current density because of the particle size distribution and sintering effect.



Supported by : 국방과학연구소


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