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为制备高性能析氧电极,采用热分解法在400℃温度下制备Ti/RuO2(x)-Co3O4(1-x)(0≤x≤1,x为Ru的摩尔分数)复合氧化物电极,通过电极开路电压、循环伏安曲线及极化曲线等分析其在1.0mol/LKOH溶液中的析氧催化活性及析氧动力学.结果表明,摩尔分数为10%的RuO2使电极催化活性急剧变化,摩尔分数为50%的RuO2复合氧化物电极具有最大的伏安电荷(429.63mC.cm-2)、最高的表面粗糙度(1786),其析氧性能最佳;Ti/Co3O4在高、低过电位区域电极对OH-的反应级数分别近似为1.0和2.0,含RuO2电极反应级数均为1.0.
In order to prepare high performance oxygen evolution electrode, Ti / RuO2 (x) -Co3O4 (1-x) (0≤x≤1, where x is the mole fraction of Ru) composite oxide electrode was prepared by pyrolysis method at 400 ℃, The oxygen evolution catalytic activity and oxygen evolution kinetics in 1.0 mol / L KOH solution were analyzed by open-circuit voltage, cyclic voltammetry and polarization curves. The results showed that the catalytic activity of RuO2 was drastically changed , The RuO_2 composite oxide electrode with the mole fraction of 50% has the highest voltammetric charge (429.63mC.cm-2) and the highest surface roughness (1786) The reaction order of OH- in the over-potential region electrode is approximately 1.0 and 2.0, respectively, and the reaction order with RuO2 electrode is 1.0.