The influence of chemical oxidation and polishing on the surface and characteristics of a glassy carbon electrode
The influence of chemical oxidation and polishing on the surface and characteristics of a glassy carbon electrode
复制标题
化学氧化和抛光对玻碳电极表面及特性的影响
DOI：
10.1016/0016-2361(89)90071-9
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发表时间：
1989
期刊：
影响因子：
7.4
通讯作者：
D. Marković
中科院分区：
文献类型：
--
作者：
V. Marković;N. Vukelic;D. Marković
本文研究了化学氧化和抛光对玻碳表面状况的影响。对自制的玻碳电极进行了电化学性能测试，结果令人满意。铬酸的化学氧化导致阳极和阴极电流-电位峰之间的差值（ΔEp）显著减小，表明电极过程的可逆性增加。以与电极相同的方式通过抛光和/或用铬酸化学氧化来处理玻璃碳样品，并且通过SEM检查经处理的表面的形貌。结果发现，由磨料引起的机械损伤在铬酸引起的表面破坏中起着重要作用。
The effects of chemical oxidation and polishing on the condition of a glassy carbon surface have been investigated. The electrochemical characteristics of the laboratory-made glassy carbon electrode were examined and found to be satisfactory. Chemical oxidation with chromic acid led to a considerable decrease in the difference between the anodic and cathodic current-potential peaks (ΔEp), indicating increased reversibility of the electrode processes. Glassy carbon samples were treated in the same manner as the electrode by polishing and/or chemical oxidation with chromic acid, and the topography of the treated surfaces was examined by SEM. It was found that mechanical damage caused by abrasives plays a significant role in surface destruction by chromic acid.