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本文应用循环伏安法,电流阶跃法等电化学方法研究了p-苯二酚在铂电极上的氧化过程.在0.5mol.L~(-1)H_2SO_4+0.5mol.L请下载后查看，本文暂不支持在线获取查看简介。(-1)Na_2SO_4溶液中,p-苯二酚的循环伏安图上有两个氧化峰,第一峰的位置在0.58V(Vs.SCE),第二峰的位置1.05V(Vs.SCE),说明p-苯二酚在铂电极上的氧化是分步进行的.用电流阶跃等方法,求得每步的电子转移数为1.提高电解溶液的pH值,氧化峰位置负移,说明电子转移后,有一去质子反应,p-苯二酚的整个电极反应为ECEC过程.
In this paper, cyclic voltammetry and current step method were used to study the oxidation of p-hydroquinone on Pt electrode. After 0.5mol.L -1 H_2SO_4 + 0.5mol.L This article does not support online access to view profile. (-1) Na_2SO_4 solution, there are two oxidation peaks on the cyclic voltammogram of p-hydroquinone, with the first peak at 0.58V (Vs.SCE) and the second peak at 1.05V (Vs.SCE ), Indicating p-hydroquinone in the platinum electrode oxidation step by step.Using current steps and other methods, the number of each step of the electron transfer is 1. Increase the pH of the electrolytic solution, the oxidation peak negative shift position , Indicating that after the electron transfer, there is a deprotonation reaction, and the whole electrode reaction of p-hydroquinone is the ECEC process.