| 氯化物水溶液体系三价铬电沉积机理研究 |
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| 引用本文： | 舒绪刚,廖列文,何湘柱,黄慧民.氯化物水溶液体系三价铬电沉积机理研究[J].表面技术,2010,39(2):1-4,13. |
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| 作者姓名： | 舒绪刚 廖列文 何湘柱 黄慧民 |
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| 作者单位： | 仲恺农业工程学院,广州,510225;广东工业大学,广州,510006 |
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| 基金项目： | 国家自然科学基金，广州市应用基础研究项目 |
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| 摘 要： | 采用循环伏安、恒电流阶跃和稳态极化等电化学研究方法和紫外分光度法,研究了Cr3+电沉积机理,结果表明其沉积过程分2步进行。计算得出Cr3+2步放电的表观活化能为34.9 kJ/mol和19.77 kJ/mol,表明Cr3+还原过程受电化学反应控制;初步拟定了甘氨酸作配体氯化物水溶液体系三价铬还原机理。
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| 关 键 词： | 三价铬 电沉积 机理 |
| 收稿时间： | 2009/11/30 0:00:00 |
| 修稿时间： | 2010/4/10 0:00:00 |
The Mechanism of Trivalent Chromium Electrodeposition and Electrocrystallization from Trivalent Chromium in Chloride System |
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| SHU Xu-gang,LIAO Lie-wen,HE Xiang-zhu and HUANG Hui-min.The Mechanism of Trivalent Chromium Electrodeposition and Electrocrystallization from Trivalent Chromium in Chloride System[J].Surface Technology,2010,39(2):1-4,13. |
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| Authors: | SHU Xu-gang LIAO Lie-wen HE Xiang-zhu and HUANG Hui-min |
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| Affiliation: | SHU Xu-gang1,LIAO Lie-wen1,HE Xiang-zhu2,HUANG Hui-min2 (1.Zhongkai University of Agriculture , Engineering,Guangzhou 510225,China,2.Guangdong University of Technology,Guangzhou 510006,China) |
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| Abstract: | The mechanism of trivalent chromium electrodeposition and electrocrystallization from trivalent chromium in chloride system has been explored by using several kinds of electrochemical methods,such as cyclic voltammetry,chronopotentiometry,steady-state-polarization.Cr(H2O)6]3+ reduction process is controlled by electrochemical reaction.Cr(H2O)6]3+ gets three electrons by two steps,their apparent activation energy is measured,one is 34.9 kJ/mol,the other is 19.77 kJ/mol,the first reducing is rate control st... |
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| Keywords: | trivalent chromium electrodeposition mechanism |
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