| 离子液体AlCl_3-[bmim]Cl中电沉积铝的研究 |
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| 引用本文： | 梅天庆,鱼光楠,贺利敏,裴玉汝.离子液体AlCl_3-[bmim]Cl中电沉积铝的研究[J].中国腐蚀与防护学报,2011(4). |
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| 作者姓名： | 梅天庆 鱼光楠 贺利敏 裴玉汝 |
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| 作者单位： | 南京航空航天大学材料科学与技术学院; |
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| 摘 要： | 在摩尔比为2:1的AlCl_3-bmim]Cl离子液体中,加入一定量的甲苯,控制阴极电流密度,在基体铁片上获得银白色和平整致密的铝镀层。循环伏安实验表明离子液体中沉积铝源于Al_2Cl_7~-的还原,还原峰电位为-0.34V;当电流密度为20mA/cm~2时,最大电流效率达97%;所得铝镀层的厚度与电镀时间呈抛物线关系;在电流密度小于35mA/cm~2时,镀层厚度随电流密度增大呈逐渐递增趋势;扫描电镜、X射线能谱对铝镀层分析结果表明(45±2)℃温度得到平整致密纯度高的铝镀层;当电流密度为20mA/cm~2时,铝镀层呈薄片状生长,随电流密度的增大,镀铝层形貌由片状向粒状过渡,并伴随着晶粒的细化。
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| 关 键 词： | 电沉积 离子液体 铝 镀层厚度 电流密度 |
ELECTRODEPOSITION OF ALUMINUM FROM AlCl_3-[bmim]Cl IONIC LIQUIDS |
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| MEI Tianqing,YU Guangnan,HE Limin,PEI Yuru College of Materials Science , Technology,Nanjing University of Aeronautics & Astronautics,Nanjing.ELECTRODEPOSITION OF ALUMINUM FROM AlCl_3-[bmim]Cl IONIC LIQUIDS[J].Journal of Chinese Society For Corrosion and Protection,2011(4). |
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| Authors: | MEI Tianqing YU Guangnan HE Limin PEI Yuru College of Materials Science Technology Nanjing University of Aeronautics & Astronautics Nanjing |
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| Affiliation: | MEI Tianqing,YU Guangnan,HE Limin,PEI Yuru College of Materials Science and Technology,Nanjing University of Aeronautics & Astronautics,Nanjing 210016 |
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| Abstract: | Dense,well adherent and silvery bright aluminum coating was obtained on iron substrates from 2AlCl3/bmim]Cl ionic liquids contained of a small amount of toluene at various cathode current densities. Cyclic voltammogram show that the deposition is obtained owing to the reduction of Al_2Cl_7~-which has a peak value of-0.34 V;The maximal current efficiency of 97%is obtained when current density is 20 mA/cm~2.The thickness of aluminum coating increases with prolongation of plating time and the increase of cath... |
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| Keywords: | electrodeposition ionic liquid aluminum thickness current density |
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