引用本文:柳 泉，刘奎仁，韩 庆，涂赣峰.苯基三甲基氯化铵(TMPAC)–三氯化铝 (AlCl3)离子液体+苯的电镀铝研究[J].中国表面工程,2010,(6):34~39
LIU Quan, LIU Kui–ren, HAN Qing, TU Gan–feng.Study on Electrodeposition of Al from Trimethylphenylammonium Chloride (TMPAC)–Aluminum Chloride (AlCl3) Ionic Liquids + Benzene[J].China Surface Engineering,2010,(6):34~39
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苯基三甲基氯化铵(TMPAC)–三氯化铝 (AlCl3)离子液体+苯的电镀铝研究
柳 泉，刘奎仁，韩 庆，涂赣峰
东北大学 材料与冶金学院
摘要:
研究了苯对摩尔比为1:2的TMPAC–AlCl3季铵盐室温离子液体电导率和极化行为的影响规律，并考察了电流密度和电镀温度对电镀铝层显微形貌的影响，采用SEM/EDX、XRD等手段对镀铝层进行表征。结果表明，在TMPAC–AlCl3下铝阳极易钝化。在TMPAC–AlCl3中加入苯，阴极和阳极电流密度大幅增加，阴极发生极化。在添加苯的TMPAC–AlCl3中，电镀铝工艺稳定性好，工艺范围宽。在较低和较高电流密度下可分别获得缎面柱状晶和镜面等轴晶镀铝层。在电沉积铝过程中苯起整平作用。
关键词:  电沉积  离子液体  极化曲线  铝
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Study on Electrodeposition of Al from Trimethylphenylammonium Chloride (TMPAC)–Aluminum Chloride (AlCl3) Ionic Liquids + Benzene
LIU Quan, LIU Kui–ren, HAN Qing, TU Gan–feng
School of Materials and Metallurgy, Northeastern University
Abstract:
The influences of benzene on the electric conductivity and polarization behavior were studied from trimethyl–phenyl–ammonium chloride and anhydrous aluminum chloride (TMPAC–AlCl3) quaternary ammonium room temperature ionic liquids with the mole ratio of 1:2 with benzene used as co–solvent. The effects of current density and plating temperature on surface microscopic morphology were discussed. Moreover, scanning electron microscope, energy dispersion X–ray spectrometer and X–ray diffraction were used to characterize the as–deposited Al layers. The results show that the passivation behavior easily happens in the Al anodic polarization process. The addition of benzene into the neat TMPAC–AlCl3 ionic liquids could significantly increase the cathodic and anodic current density, and cause the cathodic polarization. The Al–electroplating process from the electrolyte mixed with benzene has a better reproducibility than from the neat electrolyte. Its procedure parameters can vary in a relatively wide range. Furthermore, satin– and specular–appearance Al depositions are electroplated at low and high current density, respectively. The benzene is a leveling–agent in the electrodeposition process.
Key words:  electrodeposition  ionic liquids  polarization curves  aluminum
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