添加剂在KOH溶液中对锌电极枝晶的影响  

Influence of Additives on the Dendrite of Zinc Electrode in KOH Solution

作　　者：胡莲跃[1] 张胜涛[1] 黄小红[1] 谭建红[1] 吴永英[1] 

机构地区：[1]重庆大学化学化工学院,重庆400044

出　　处：《应用化学》2012年第3期359-363,共5页Chinese Journal of Applied Chemistry

基　　金：重庆市自然科学基金计划项目资助(CSTC2009BB7289)

摘　　要：采用电流-时间曲线研究了6-硝基苯并咪唑、苯并咪唑和Pb2+在KOH(4 mol/L)溶液中对锌枝晶的影响。结果表明,6-硝基苯并咪唑、苯并咪唑以及Pb2+能有效抑制锌枝晶的形成,从而提高锌电极的充电性能;当0.05 g/L Pb2+分别与6-硝基苯并咪唑和苯并咪唑在阴极过电位η=-200 mV进行充电实验时,具有较高的充电效率并能有效的抑制锌枝晶的生长。The influences of 6-nitrobenzimidazole, benzimidazole and Pb2＋ on zinc dendrite in KOH solution （4 mol/L ） were investigated by means of current-time technique. The results showed that 6- nitrobenzimidazole, benzimidazole and Pb2＋ could effectively inhibit the formation of zinc dendrites, and enhance the charging capacity of zinc electrode. It showed a high charging efficiency and effective inhibition to the growth of zinc dendrites when the charging was performed at a cathodic overpotential η= - 200 mV in 0. 05 g/L Pb2＋ alkaline solution with the addition of 6-nitrobenzimidazole or benzimidazole.

关 键 词：锌枝晶 PB2+ 硝基苯并咪唑 苯并咪唑 过电位 

分 类 号：O646.6[理学—物理化学]