[EMIM]HSO_4离子液体的微波合成及铝电沉积应用  

Microwave Synthesis of [EMIM] HSO_4 Ionic Liquids and Its Aluminum Electrodeposition Application

作　　者：穆洁尘[1] 张丽鹏 王恩琦 吕迎智 

机构地区：[1]山东理工大学机械工程学院,山东淄博255049 [2]万杰集团有限公司,山东淄博255213 [3]山东亚特尔集团股份有限公司,济南250011

出　　处：《有色金属（冶炼部分）》2012年第12期19-22,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金项目(51054003);山东省高等学校科技计划项目(J09LB59);山东省中青年科学家奖励基金(BS2009NJ007)

摘　　要：对采用微波合成方法制备的[EMIM]HSO4离子液体的物化性能进行测试,并将其作为电解质应用于铝的电沉积,用SEM、XRD及EDS对沉积层的形貌进行表征,通过测定循环伏安曲线以及计时电流曲线探讨铝在[EMIM]HSO4中的电沉积机理。结果表明,[EMIM]HSO4的电化学窗口较宽(4.81V),适合作电解质;铝在铜电极上发生欠电位沉积和体相沉积;铝的形核模式介于三维瞬时形核和连续成核之间;铝沉积层晶粒致密均匀,附着力好。The physical and chemical characteristics of microwave assisted synthesized 1-ethyl-3-methylimid- azolium hydrogen sulfate [EMIM]HSO4 ionic liquid were tested, and [EMIM]HSO4 was applied to alumi- num electrodeposition. The morphology of electrodeposits was characterized by SEM, XRD and EDS, re- spectively. Electrochemical techniques of cyclicvoltammetry and chronoamperometry were applied to inves- tigate the mechanism of aluminum electrodeposition from the [EMIM]HSO4ionic liquid. The results show that [EMIM]HSO4 has a wider electrochemical window （4. 81 V） on platinum electrode, which could be used as electrolyte. The deposition process of aluminum on copper substrates is underpotential deposition and bulk deposition. The electrodeposition of aluminum proceeds is an uncertain three-dimensional nuclea- tion model. The morphology of electrodeposits is dense, uniform and well adherent.

关 键 词：[EMIM]HSO4 离子液体 微波合成 铝电沉积 应用 

分 类 号：O646[理学—物理化学]