Electrochemical control of gas-phase oxidation and reduction of copper as probed by surface-enhanced Raman spectroscopy

被引：21
|
作者：
Chan, HYH [1 ]
Takoudis, CG
Weaver, MJ
机构：
[1] Purdue Univ, Sch Chem Engn, W Lafayette, IN 47907 USA
[2] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA
[3] Univ Illinois, Dept Chem Engn, Chicago, IL 60607 USA
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 1999年 / 2卷 / 04期
关键词：
D O I：
10.1149/1.1390779
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The presence or absence of copper surface oxidation in air is shown to be readily controllable by aqueous solution rinsing. The presence of a Cu2O film is detected from the 625/525 cm(-1) oxide vibrational features obtained by surface- enhanced Raman scattering. Flushing with acidic solutions removes the Cu2O film to yield a reduced surface, whereas rinsing with aerated neutral or alkaline media immediately regenerates the oxide. The findings are entirely compatible with the occurrence of electrochemical half-reaction pathways for surface oxidation and reduction. (C) 1999 The Electrochemical Society. S1099-0062(98)09-002-6. All rights reserved.
引用
收藏
页码：189 / 191
页数：3
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