超电容器用电极材料氮化钼的改性研究(I)——钒酸氨添加物对电极性能的影响

电化学（中英文） ›› 2002, Vol. 8 ›› Issue (3): 337-342.

超电容器用电极材料氮化钼的改性研究(I)——钒酸氨添加物对电极性能的影响

李学良,鲁道荣,王华林,何建波,朱云贵

合肥工业大学化工学院,合肥工业大学化工学院,合肥工业大学化工学院,合肥工业大学化工学院,合肥工业大学化工学院安徽合肥230009 ,安徽合肥230009 ,安徽合肥230009 ,安徽合肥230009 ,安徽合肥230009

收稿日期:2002-08-28 修回日期:2002-08-28 出版日期:2002-08-28 发布日期:2002-08-28

Modification of Molybdenum Nitride Electrode for Supercapacitor(I)——The Effect of Ammonium Vanadate on the Properties of Molybdenum Nitride Electrode

LI Xue_liang *,LUO Dao_rong,WANG Hua_lin,HE Jian_bo,ZHU Yun_guei

(School of Chemical Engineering,Hefei University of Technology,Hefei 230009,China

Received:2002-08-28 Revised:2002-08-28 Published:2002-08-28 Online:2002-08-28

摘要/Abstract

摘要： 应用XRD、SEM和循环伏安等方法对γ_氮化钼及其复合电极进行了表征和测量 ,研究了浸渍液中钒酸铵浓度对成膜物质的表面形貌、结晶形态和电容的影响 .结果表明 :添加钒酸铵导致成膜物质中生成四方晶系的VOMoO4 ,这对氮化钼电极的电容特性有重要影响 .其影响机理为VOMoO4 改变了成膜物质的结晶形态和结构 ,导致氮化钼的部分非晶化 ,循环伏安测试显示了氮化钼电极具有良好的电容特性 .掺钒之后 ,电极的工作电势范围拓宽 ,比电容加大 ;浸渍液中钒钼最佳摩尔比为 35∶6 5 .

关键词: 氮化钼, 超电容器, 钒, 比电容

Abstract: The effect of vanadium on the properties of the electrode of molybdenum nitride has been studied by using XRD?SEM and cyclic voltammetry.Modified molybdenum nitride was made as follow:films were coated by dipping titanium sheet in the solution containing different composition of molybdenum oxide,ammonium vanadate,ammonia,glycol and oxalic acid,and coated films are reacted with free ammonia.The results show that the specific capacitance of modified electrode was considerably increased and the operation voltage was broadened with the addition of ammonium vanadate in the dipping solution.The mechanism of these effects generated is the formation of new phase VOMoO 4 in the electrode of molybdenum nitride,the partly amorphous phase formation of molybdenum nitride,and the change of the microstructure of the modified film.The optimum molar ratio of vanadium and molybdenum in the dipping solution was 35∶65.

Key words: Molybdenum nitride, Supercapacitor, Vanadium, Specific capacitance

中图分类号:

O646

李学良,鲁道荣,王华林,何建波,朱云贵. 超电容器用电极材料氮化钼的改性研究(I)——钒酸氨添加物对电极性能的影响[J]. 电化学（中英文）, 2002, 8(3): 337-342.

LI Xue_liang *,LUO Dao_rong,WANG Hua_lin,HE Jian_bo,ZHU Yun_guei . Modification of Molybdenum Nitride Electrode for Supercapacitor(I)——The Effect of Ammonium Vanadate on the Properties of Molybdenum Nitride Electrode[J]. Journal of Electrochemistry, 2002, 8(3): 337-342.

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链接本文: https://electrochem.xmu.edu.cn/CN/

https://electrochem.xmu.edu.cn/CN/Y2002/V8/I3/337

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