电解二氧化锰在MgSO_4溶液中的电化学行为

电化学（中英文） ›› 2006, Vol. 12 ›› Issue (3): 341-344.

电解二氧化锰在MgSO_4溶液中的电化学行为

余丹梅;司玉军;陈昌国;刘渝萍;刘艳;

重庆大学化学化工学院,重庆大学化学化工学院,重庆大学化学化工学院,重庆大学化学化工学院,重庆大学化学化工学院重庆400044,重庆400044,重庆400044,重庆400044,重庆400044

收稿日期:2006-08-28 修回日期:2006-08-28 出版日期:2006-08-28 发布日期:2006-08-28

Electrochemical Behavior of Electrolytic Manganese Dioxide in MgSO_(4) Solution

YU Dan-mei,SI Yu-jun,CHEN Chang-guo~*,LIU Yu-ping,LIU Yan

(College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China

Received:2006-08-28 Revised:2006-08-28 Published:2006-08-28 Online:2006-08-28

摘要/Abstract

摘要： 应用循环伏安法、恒流充放电、X射线衍射研究了电解二氧化锰在MgSO4溶液中的可充性和充放电过程晶体结构的变化.结果表明:电解二氧化锰具有一定的电化学循环性能;经过初始几次充放电循环后,达到稳定状态;充放电过程电解二氧化锰的γ-MnO2晶体结构可逆地发生变化,保证了电解二氧化锰的可充性.

关键词: 电解二氧化锰, 可充性, MgSO4电液

Abstract: The rechargeability and crystal structure changing of electrolytic manganese dioxide(EMD) in MgSO_(4) electrolyte were investigated by cyclic voltammetry,galvanostatic charge/discharge and X-ray diffraction.The results have shown that the EMD has good rechargeability;after several initial cycles,the charge and discharge became stability;after discharge,the γ-MnO_(2) structure of EMD was changed,the production was reversible and could be recharged to γ-MnO_(2) structure again which ensured the rechargeability of EMD.

Key words: Electrolytic manganese dioxide(EMD), MgSO_(4) electrolyte, Rechargeability

中图分类号:

O646.5

余丹梅;司玉军;陈昌国;刘渝萍;刘艳;. 电解二氧化锰在MgSO_4溶液中的电化学行为[J]. 电化学（中英文）, 2006, 12(3): 341-344.

YU Dan-mei,SI Yu-jun,CHEN Chang-guo~*,LIU Yu-ping,LIU Yan. Electrochemical Behavior of Electrolytic Manganese Dioxide in MgSO_(4) Solution[J]. Journal of Electrochemistry, 2006, 12(3): 341-344.

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https://electrochem.xmu.edu.cn/CN/Y2006/V12/I3/341

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