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利用溶胶-凝胶法制备了钙钛矿型复合氧化物La0.6Sr0.4CoO3, 着重研究了煅烧温度对其在双功能氧电极中电催化性能的影响.采XRD、SEM、BET等分析手段对钙钛矿型复合氧化物La0.6Sr0.4CoO3进行物相及形貌分析, 在三电极体系下绘制了双功能氧电极的阴极和阳极的稳态极化曲线和稳态恒电流曲线.结果表明, 提高煅烧温度, 有利于减少钙钛矿型La0.6Sr0.4CoO3中的杂质.当煅烧温度达到800℃时, La0.6Sr0.4CoO3为纯相钙钛矿型复合氧化物, 催化剂的活性最好, 双功能氧电极的极化最小且稳定性最佳.“,”La0.6Sr0.4CoO3 perovskite-type oxide was prepared with sol-gel method, and the effect of calcination temperature on its electrocatalytic properities in bifunctional oxygen electrodes was particularly studied.The phase and morphology of La0.6Sr0.4CoO3 perovskite-type oxide were analyzed by XRD, SEM and BET, and the steady-state polarization curves and steady-state galvanostatic curves of the cathode and anode of the bifunctional oxygen electrodes were plotted in a three-electrode system.The results show that increasing the calcination temperature is advantageous for decreasing the impurities in La0.6Sr0.4CoO3 perovskite-type oxide.When the calcination temperature reaches 800℃, pure La0.6Sr0.4CoO3 perovskite-type oxide is obtained with the highest catalytic activity, and the bifunctional oxygen electrode owns the lowest electrochemical polarization and the highest stability.