酸性介质中TeCd阴极沉积和阳极溶出过程的EQCM研究  

EQCM Studies of Electrodeposition and Anodic Dissolution of CdTe on Pt Electrode in Acidic Media

作　　者：卢江红[1] 林燕美[1] 郭艺容[1] 张励莉[1] 陈碧桑[1] 陈国良[1] 

机构地区：[1]漳州师范学院化学与环境科学系,福建漳州363000

出　　处：《漳州师范学院学报（自然科学版）》2008年第4期90-93,共4页Journal of ZhangZhou Teachers College（Natural Science)

基　　金：福建省教委科研基金资助项目(JA07160)

摘　　要：运用电化学循环伏安和石英晶体微天平(EQCM)方法研究了酸性介质中CdTe在Pt电极上阴极沉积和阳极溶出过程.结果表明:在含或不含Cd的TeO2溶液中,本体Te沉积的机理不同,但阳极溶出过程相类似;在实验条件下,只有当阴极电位小于-0.2 V时,方可发生CdTe电沉积,其阴极电沉积和阳极溶解都是一个3-电子过程,并提出了CdTe电沉积和阳极溶出过程的机理.本文从电极表面质量定量变化的角度提供了CdTe阴极沉积和阳极溶出过程的新数据.The electrodeposition and anodic dissolution of CdTe on Pt Electrode in Acidic Media has been investigated by using cyclic voltammetry and EQCM. The experimental results demonstrate that the mechanism of bulk Te deposition is the different, but its process of anodic dissolution is the similarity in TeO2 solution with or without Cd^2＋ ion. Under experimental condition, the deposition of CdTe takes place only when the potential is less more -0.2 V, its deposition or anodic dissolution is a 3-electron process, and the mechanism electrodeposition of CdTe can be considered. The EQCM studies provide quantitative results of surface mass changes during electrodeposition and anodic dissolution of CdTe, and have thrown new light in the elucidating electrodeposition and anodic dissolution of CdTe.

关 键 词：CDTE EQCM 阴极沉积 阳极溶出 

分 类 号：O646.541[理学—物理化学] O433[理学—化学]