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本文应用原位共焦拉曼光谱技术观察了Cu ,Zn -SOD分子在经表面增强处理后的银电极上 ,吸附状态随电位跃迁变化的过程。结果表明在 -0 2V～ 0 1V的电位区间内 ,Cu,Zn -SOD分子经由羧酸根离子吸附于银电极表面 ,而在 0 2～ 0 4V电位区间内发生脱附 ,表面吸附的物种改变为缓冲溶液中的磷酸根离子。上述结果为SOD分子在固体电极表面电子传递机制的探索提供了依据。
In this paper, in-situ confocal Raman spectroscopy was used to observe the change of adsorption state with potential transitions on Cu electrode and Zn-SOD electrode after surface-enhanced silver electrode. The results showed that the Cu, Zn-SOD molecules adsorbed on the silver electrode surface via the carboxylate ions and desorbed within the potential range of 0 2 ~ 0 4V in the potential range of -0 2V ~ 0 1V. The species adsorbed on the surface changed to Buffer phosphate ions in solution. The above results provide a basis for the exploration of the mechanism of electron transfer on the surface of solid electrode.