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1.用“分解极化曲线法”和恒电流稳态极化曲线的测量,得到了H_2SO_4和H_2SO_4-(NH_4)_2SO_4溶液中,β-PbO_2电极上,S_2O_8~(2-)离子阳极形成的真实动力学数据,并研究了不同添加剂的影响。在浓度大于或等于1N的H_2SO_4溶液中,实验得到的动力方程式为 i(S_2O_8~(2-))=ke~(βφF/RT)其中β=0.52,κ是不依赖于硫酸根离子浓度和pH值的常数。同时得到了氧发生反应的动力学数据:在2.25V以上的高电位区,氧发生的极化曲线与S_2O_8~(2-)阳极形成的极化曲
1. The polarization of S_2O_8 ~ (2-) ions on the β-PbO_2 electrode in H_2SO_4 and H_2SO_4- (NH_4) _2SO_4 solutions was obtained by the “Depolarization Polarization Curve” method and the constant current steady state polarization curve Real kinetic data and the effects of different additives were studied. The kinetic equation of the experiment was H (superscript 2 +) = ke ~ (βφF / RT) where β = 0.52 in the H_2SO_4 solution with the concentration greater than or equal to 1N. Κ was independent of the sulfate ion concentration and pH Constant of value. At the same time, kinetic data of oxygen reaction were obtained. In the high potential region above 2.25V, the polarization curve of oxygen and the polarization curve formed by S_2O_8 ~ (2-) anode