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研究了甲苯胺蓝在碳纤维微盘电极上的电化学行为,探讨了pH对甲苯胺蓝电极反应过程的影响,确定在pH<3.7,3.75.5时,参与电极过程的H~+数分别为3,2和1;测定了甲苯胺蓝的扩散系数及在碳纤维微盘电极上的电荷转移系数α,标准电子转移速率常数k~(?)和式量电位E~(?),提出了不同pH下电极反应的机制,对甲苯胺蓝在碳纤维微盘电极上的吸附性能进行了探索,并测定了吸附控制条件下的动力学参数.
The electrochemical behavior of toluidine blue at carbon fiber microdisk electrode was studied. The effect of pH on the reaction of toluidine blue electrode was investigated. The influence of pH on the electrode reaction process was investigated at pH <3.7, 3.7 5.5 ~ + Were 3, 2 and 1, respectively. The diffusion coefficient of toluidine blue and the charge transfer coefficient α, the standard electron transfer rate constant k ~ (?) And the mass potential E ~ (? The mechanism of electrode reaction at different pH was put forward. The adsorption of toluidine blue on carbon fiber micro-plate electrode was explored. The kinetic parameters of the electrode were also determined.