钢板/离子液体-Grignard混合溶液体系中电沉积镁的初探  

Electrodeposition of Mg:a Preliminary Observation in a Steel/ionic Liquid-Grignard Solution System

作　　者：刘慧斌[1] 许源荣[1] 周尉[1] 印仁和[1] 成旦红[1] 大内幸雄[2] 

机构地区：[1]上海大学化学系,上海200444 [2]名古屋大学化学系光物理化学研究室

出　　处：《复旦学报（自然科学版）》2012年第2期201-205,共5页Journal of Fudan University：Natural Science

基　　金：国家自然科学基金资助项目(21003088;20873083);上海市优秀青年教师基金资助项目(shu10017);上海大学创新基金资助项目;上海市教委第五期重点学科建设基金资助项目(J50102)

摘　　要：用加有离子液体[Pip14][TFSI]的Grignard溶液(2mol/L BuMgCl/THF)在钢板上电沉积金属镁.通过循环伏安、计时电流曲线、SEM等方法比较了加入[Pip14][TFSI]前后,镁在钢上电沉积行为和镀层形貌的变化.在Grignard试剂中,采用恒电位法得到的镁镀层形貌较为致密均一;而[Pip14][TFSI]增大了镁的沉积电位,使金属镁的结晶向瞬时成核过程过渡,说明[Pip14][TFSI]对电沉积镁会产生显著影响.Magnesium was electrodeposited on steel in a Grignard/THF solution containing [Pip14 ] [TFSI]. The electrochemical behavior of magnesium deposition and morphology of the deposit before and after adding [Pip14 ] [TFSI] were monitored by Cyclic Voltammetry, Chronoamperometry, SEM, EDS and XRD. A compact and uniform layer of Mg was obtained in the Grignard solution. After [Pip14 ][TFSI] was added, the onset potential of Mg deposition changed negatively and the deposition process was close to an instantaneous nucleation process. Adding [Pip14 ][TFSI] affected the Mg deposition significantly.

关 键 词：格氏试剂 离子液体 电沉积 镁 

分 类 号：O647.11[理学—物理化学]