铜在碱性溶液中阳极过程的研究  

A Study of Anodic Process of Copper in NaOH Solution

作　　者：何建波[1] 林建新[1] 

机构地区：[1]合肥工业大学化工学院

出　　处：《高等学校化学学报》1996年第2期290-293,共4页Chemical Journal of Chinese Universities

摘　　要：用慢电势扫描和恒电流法研究铜在浓碱中的阳极过程，并用角分辨Ｘ射线光电子能谱测试了铜表面二次钝化膜。结果表明，该膜由内层Ｃｕ_２Ｏ和外层ＣｕＯ－Ｃｕ（ＯＨ）_２组成，越靠近膜的表面，ＣｕＯ／Ｃｕ（ＯＨ）_２含量比越小，吸附水越多。据此提出成膜的电化学氧化－表面转化历程。The anodic process of copper in concentrated NaOH solutions was studied by potential slow scan and galvanostatic methods,and angle dependent X-ray photoelectron spectroscopy analysis.The result shows the second passive film on copper surface is made up of an inner Cu_2O layer followed by a CuO-Cu(OH)_2 layer,and CuO/Cu(OH)_2 ratio decreases with the probed depth decreasing,whereas adsorbed water increasing.An electrochemical oxidation-surface transition model about the passivating film formation has been proposed.

关 键 词：铜 电化学氧化 钝化膜 阳极膜 

分 类 号：O614.121[理学—无机化学] O646.542[理学—化学]