(1. 山東理工大學(xué) 化學(xué)工程學(xué)院，淄博 255049；
2. 淄博職業(yè)學(xué)院 化學(xué)工程系，淄博 255000)
摘 要: 在高純氬氣氣氛下，將AlC13與溴化1-丁基-3-甲基咪唑(BMIM)Br反應(yīng)合成透明的鋁基離子液體(BMIM)Br- AlC13；采用紅外光譜儀、掃描電鏡及X射線能譜儀對其結(jié)構(gòu)進(jìn)行表征。在298.15 K下進(jìn)行16 h鋁電沉積實驗，通過循環(huán)伏安曲線法測定其電化學(xué)窗口。研究結(jié)果表明：鋁基離子液體(BMIM)Br-AlC13的電化學(xué)窗口為3.40 V；掃描電鏡分析表明，陰極新生態(tài)的鋁晶粒生長完整、晶界完善；X射線能譜分析陰極表面新生態(tài)鋁的結(jié)果顯示主元素為鋁，微量元素為氧。
關(guān)鍵字: 離子液體；(BMIM)Br-AlC13；電沉積
Al-based ionic liquid (BMIM)Br-AlC13
（1. School of Chemical Engineering, Shandong University of Technology, Zibo 255049, China;
2. Department of Chemical Engineering, Zibo Vocational Institute, Zibo 255000, China）
Abstract:An ionic liquid was prepared by mixing AlCl3 and 1-methyl-3-butylimidazolium bromide (BMIM) under dry argon atmosphere. The structure of (BMIM)Br-AlC13 was confirmed by IR. Aluminum electrolysis was conducted at 298.15 K for 16 h by the ionic liquid. The electrochemical window was measured at 298.15 K by cyclic voltammetry. Cathode surface was analyzed by SEM and EDS. The results show that the electrochemical window is 3.40 V, the crystal grain of new deposit aluminum is ideal, and the boundary of crystal grain is perfect. The main element is aluminum and trace element is oxygen on the surface of cathode.
Key words: ionic liquid; (BMIM)Br-AlC13; electrodeposition
