表面修饰电极反应动力学的研究

本文提出了一种描述表面修饰电极(SME)反应动力学行为的理论模型,并以普鲁士蓝修饰电极为例,通过实验对理论作了验证。结果表明,理论预期与实验结果符合较好。由此推证,用电荷传输扩散系数Dct表征SME的电催化能力是合适的。Dct可由电位阶跃实验求得。

Studies on the Dynamics of Surface Modified Electrodes

In this paper, a theoretical model descibing the dynamic behavior of surface modified electrodes (SME) is presented.The model has been tested with the experimental results of Prussian Blue modified electrodes. It is shown that the theory is in good accord with the experiment. From thi we have proved that it is appropriate to judge the capability of electrocatalysis of SME with the charge-transport diffusion coefficient, which can be measured through step potential experiments.