Unusual "chemical" mechanism of carbon co-deposition in Cr-C alloy electrodeposition process from trivalent chromium bath

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• 作者：Vyacheslav S. Protsenko ; ^{Vprotsenko7@gmail.com} ; Viktor O. Gordiienko ; Felix I. Danilov
• 关键词：Chromium-carbon electrodeposition ; Kinetics and mechanism ; Trivalent chromium bath
• 刊名：Electrochemistry Communications
• 出版年：2012
• 期刊代码：29_13882481
• 类别：ch
• 出版时间：April, 2012
• 卷：17
• 期：Complete
• 页码：85-87
• 文件大小：286 K

摘要

Kinetics and mechanism of chromium-carbon alloy deposition process were investigated using trivalent chromium electroplating bath containing formic acid and carbamide (urea). The rate of carbon co-deposition process is determined by the rate of chromium electroplating reaction (electrochemical process of Cr-deposition imposes its own kinetics regularities on carbon co-deposition). It was supposed that a part of active chromium ad-atoms generated as a result of Cr(II) ions discharge may interact with adsorbed organic bath constituents by "chemical" mechanism.