现场电化学紫外-可见反射光谱法研究金属表面难溶盐膜的形成机理

Study on Forming Mechanism of Undissolving Salt Film on Metal Surface by Using in Situ Electrochemical Ultraviolet -visible Reflextance Spectroscopy

采用现场电化学紫外－可见反射光谱法研究了含亚硒酸的1．0mol．L－1H3PO4溶液中铜电极表面的成膜机理。实验结果并结合热力学分析证实了成膜过程中直接氧化机理的存在。

In this paper the film - forndng mechanism of CuSe on copper electrode in 1. 0mol· L-1 H3PO4 c0ntaining H2SeO3 was studied by using in situ electrochendcal ultraviolet-visiblerenectance spetroscopy. The results combined with thermedpoamic analysis confirmed the exis-tence of direct-okidizing mechanism.