玻碳电极表面氧化物种的电化学及光电子能谱研究

The Electrochemical and XPS Spectroscopic Studics of Surface Oxide Species on Glassy Carbon Electrodes

利用电化学及光电子能谱方法对玻碳电极表面氧化物种进行了表征，实验结果表明：玻碳电极的“活化过程”与电极的析氧过程紧密相关。表面氧化物种的形成是电化学与化学氧化共同作用的结果，表面氧化物种的组成与“活化”电位有明显的依赖关系。

The characterization of surface oxide species on glassy carbon electrodeshas been carried out with using electrochemical and XPS methods. The results show that the″activation″of glassy carbon electrodes could be correlated to the oxygen-evolving process onthe electrodes. The formation process of surface oxide species is a combination of electro-chemical and chemical oxidation. The composition of surface oxide specis is dependent of″activation″potential.