Electrochemical reversibility of magnesium deposition-dissolution on aluminum substrates in Grignard reagent/THF solutions  

作　　者：CHENG Gang XU Qiang ZHANG Ming DING Fei LIU XingJiang JIAO LiFang 

机构地区：[1]School of Chemical Engineering and Technology, Tianjin University [2]National Key Laboratory of Science and Technology on Power Sources, Tianjin Institute of Power Sources [3]Institute of New Eenergy Material Chemistry, Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education, Nankai University

出　　处：《Chinese Science Bulletin》2013年第27期3385-3389,共5页

基　　金：supported by the National Natural Science Foundation of China (20973124);the Open Project of Key Laboratory of AdvancedEnergy Materials Chemistry (Nankai University) (KLAEMC-OP201101)

摘　　要：The electrochemical behavior of magnesium deposition-dissolution on scratched aluminum foils in Grignard reagent/tetrahydrofuran (THF) solutions (1 mol L-1 EtMgBr/THF), which is regarded as a potential electrolyte of rechargeable magnesium batteries, was studied by using various methods such as cyclic voltammetry (CV), scanning electron microscopy (SEM), X-ray diffraction (XRD) and charge-discharge (deposition-dissolution) tests. The results present that the obtained magnesium deposits do not exhibit the morphology of dendrite and the Mg-Al alloy is not found on the surface of aluminum foils. The magnesium deposited on the aluminum substrates have excellent electrochemical cyclic performance in 1 mol L-1 EtMgBr/THF solution. The aluminum can be used as a candidate material of the negative current collector for rechargeable magnesium batteries.The electrochemical behavior of magnesium deposition-dissolution on scratched aluminum foils in Grignard reagent/tetrahydrofuran （THF） solutions （1 mol L-1 EtMgBr/THF）, which is regarded as a potential electrolyte of rechargeable magnesium batteries, was studied by using various methods such as cyclic voltammetry （CV）, scanning electron microscopy （SEM）, X-ray diffraction （XRD） and charge-discharge （deposition-dissolution） tests. The results present that the obtained magnesium deposits do not exhibit the morphology of dendrite and the Mg-Al alloy is not found on the surface of aluminum foils. The magnesium deposited on the aluminum substrates have excellent electrochemical cyclic performance in 1 mol L-1 EtMgBr/THF solution. The aluminum can be used as a candidate material of the negative current collector for rechargeable magnesium batteries.

关 键 词：THF溶液 电化学行为 沉积 铝箔 格氏试剂 溶解 可逆性 十二烷基硫酸钠 

分 类 号：TM912[电气工程—电力电子与电力传动]