彭冬,张晶,张敏,丛大龙,陈海涛,宋凯强,李忠盛.离子液体电沉积铝添加剂的研究进展[J].表面技术,2021,50(3):149-157.
PENG Dong,ZHANG Jing,ZHANG Min,CONG Da-long,CHEN Hai-tao,SONG Kai-qiang,LI Zhong-sheng.Research Progress of Additives for Electrodeposition of Aluminum from Ionic Liquid[J].Surface Technology,2021,50(3):149-157 |
| 离子液体电沉积铝添加剂的研究进展 |
| Research Progress of Additives for Electrodeposition of Aluminum from Ionic Liquid |
| 投稿时间：2020-09-17 修订日期：2021-01-21 |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.03.013 |
| 中文关键词: Al沉积层 电沉积 离子液体 添加剂 耐腐蚀性 机理 |
| 英文关键词:Al deposition layers electrodeposition ionic liquid additives corrosion resistance mechanism |
| 基金项目: |
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| Author | Institution |
| PENG Dong | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| ZHANG Jing | The Sixth Military Representative Office of the Military Representative Bureau of the Army Equipment Department in Chongqing, Chongqing 400039, China |
| ZHANG Min | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| CONG Da-long | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| CHEN Hai-tao | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| SONG Kai-qiang | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| LI Zhong-sheng | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
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| 中文摘要: |
| 离子液体作为一种新型绿色室温电解质，具有蒸气压低、挥发性小、电化学窗口宽等优点，是电沉积Al的理想选择。但是采用离子液体电沉积Al，当沉积时间较长、电流密度较大时，沉积层的晶粒粗大，表面较为粗糙，甚至会出现树枝状沉积，容易剥落，严重影响到Al沉积层的质量与性能。离子液体添加剂可显著改善Al沉积层光亮度、平整度、致密度以及耐腐蚀性能。综述了添加剂对离子液体电沉积Al的影响，重点介绍了添加剂对Al沉积层微观结构、离子液体物理性质、Al沉积层耐腐蚀性能的影响，以及添加剂在离子液体电沉积Al中的作用机理。添加剂通过优化离子液体电导率、黏度等电化学性能与离子放电条件，来控制Al晶粒的形核与生长，从而调整晶粒的形核位置、细化晶粒尺寸、择优晶粒取向，甚至一些无机氯化物添加剂可与Al形成合金，最终获得光亮、平整、致密且耐蚀性能优异的Al沉积层。添加剂在离子液体电沉积Al中主要起整平剂与光亮剂的作用。最后，分析展望了添加剂在离子液体电沉积Al中的应用前景及未来的研究重点。 |
| 英文摘要: |
| As a new environment-friendly room temperature electrolyte, ionic liquid has the advantages of low vapor pressure, low volatility and wide electrochemical window, so it is an ideal choice for electrodeposition of Al. However, if the ionic liquid is used to electrodeposit Al, the longer the deposition time is and the higher the current density is, the larger the gain size is and the rougher the sunface of the deposition layer is, and even dendritic deposition occurs, which is easy to peel off, thus seriously affecting the quality and performance of the Al deposition layer. Ionic liquid additives can significantly improve the brightness, flatness, density and corrosion resistance of Al deposition layer. The effects of additives on the electrodeposition of Al from ionic liquids are reviewed, with emphasis on the effects of additives on the microstructure of Al deposition layer, the physical properties of ionic liquids, the corrosion resistance of Al deposition layer and the action mechanism of additives for the electrodeposition of Al from ionic liquids. Additives control the nucleation and growth of Al grains by optimizing the electrochemical properties such as conductivity and viscosity of ionic liquids and ion discharge conditions, so as to adjust the nucleation position, refine grain size, and preferred grain orientation, and even some inorganic chloride additives can form alloys with Al, finally bring the compact Al deposition layer with brightness, flatness and excellent corrosion resistance. Additives mainly play the role of leveling agent and brightener in the electrodeposition of Al from the ionic liquids. Last, the application prospect and future research focus of additives for electrodeposition of Al from ionic liquid are analyzed and prospected. |
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