Role of complexing ligands in trivalent chromium electrodeposition
文献类型：期刊论文
| 作者 | Zhang JY(张俊彦)
|
| 刊名 | Surface and Coatings Technology
 |
| 出版日期 | 2011 |
| 卷号 | 205页码:4771-4775 |
| 关键词 | Trivalent chromium Complexing ligand Electroreduction Geometric structure |
| ISSN号 | 0257-8972 |
| 通讯作者 | 张俊彦 zhangjunyan@licp.cas.cn |
| 中文摘要 | In this study, the Cr(III)-formate, Cr(III)-oxalate and Cr(III)-glycine electrolytes are used as sources for electrodepositing the Cr coatings. The deposition rate and brightness range of the electroplating process in these electrolytes are investigated. The geometric structures of the Cr complex ions are optimized, using density functional theory with General Gradient Approximation/Perdew-Wang 91 (GGA/PW91) calculation. It is found that the deposition rate and brightness range significantly depend on the geometric structure of the Cr(III)-ligand complex ions. The expansion of the distance between Cr and H2O induced by the introduced complexing ligand is a necessary condition for the electrochemical reduction of Cr(III) to metal Cr. The dehydration rate of Cr(III)-ligand complex ions determines the electroplating characteristics of electrolytes. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the “Outstanding Talent Recruiting Program Dedicated to Academician Q. J. Xue” (2009A31004) from Ningbo municipal government and the “Zhejiang Natural Sciences Foundation” |
| 语种 | 英语 |
| WOS记录号 | WOS:000292361400005 |
| 公开日期 | 2012-11-23 |
| 源URL | [http://210.77.64.217/handle/362003/2226]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang JY. Role of complexing ligands in trivalent chromium electrodeposition[J]. Surface and Coatings Technology,2011,205:4771-4775. |
| APA | 张俊彦.(2011).Role of complexing ligands in trivalent chromium electrodeposition.Surface and Coatings Technology,205,4771-4775. |
| MLA | 张俊彦."Role of complexing ligands in trivalent chromium electrodeposition".Surface and Coatings Technology 205(2011):4771-4775. |
入库方式： OAI收割
来源：兰州化学物理研究所
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