高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (2): 290.

• 论文 • 上一篇    下一篇

铜在碱性溶液中阳极过程的研究

何建波, 林建新   

  1. 合肥工业大学化工学院, 合肥 230009
  • 收稿日期:1995-03-01 出版日期:1996-02-24 发布日期:1996-02-24
  • 通讯作者: 何建波,男,30岁,硕士,讲师.
  • 作者简介:何建波,男,30岁,硕士,讲师.

A Study of Anodic Process of Copper in NaOH Solution

HE Jian-Bo, LIN Jian-Xin   

  1. Institute of Chemical Engineering, Hefei University of Technology, Hefei 230009
  • Received:1995-03-01 Online:1996-02-24 Published:1996-02-24

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Cu2O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。

关键词: 铜, 电化学氧化, 钝化膜, X射线光电子能谱

Abstract: The anodic process of copper in concentrated NaOHsolutions 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 Cu2Olayer 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.

Key words: Copper, Electrochemical oxidation, Passive film, XPS

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