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本文研究了不同浓度的HClO_4和H_2SO_4溶液中铂电极上氧阳极析出过程的动力学。稳态极化曲线上有三个区域:电位突跃前的低极化区,突跃区和突跃后的高极化区。前两个区域内对于α_w的反应级数均为1,在后一区域内对于α_w·α_(ClO_4~-)或αw·α_(HSO_4~-)的反应级数接近于1/2。文中对在各区域内的反应机理和产生电位突跃的原因进行了探讨。
In this paper, the kinetics of oxygen anodic precipitation on platinum electrode in different concentrations of HClO 4 and H 2 SO 4 solutions was studied. There are three regions on the steady-state polarization curve: the low polarization region before the jump of the potential, the transition region and the hyperpolarization region after the jump. The reaction orders for α_w are both 1 in the first two regions, and the reaction orders for α_w · α_ (ClO_4 ~ -) or αw · α (HSO_4 ~ -) in the latter region are close to 1/2. In this paper, the reaction mechanism in each region and the cause of potential jumps are discussed.