电极类型对NiOOH循环伏安测试的影响  

The effect of electrode type on the cyclic voltammetry measurement of NiOOH

作　　者：姬忠涛[1] 张正富[2] 

机构地区：[1]曲靖师范学院物理与电子工程学院,云南曲靖655011 [2]昆明理工大学材料科学与工程学院,云南昆明650093

出　　处：《云南大学学报（自然科学版）》2012年第5期554-558,共5页Journal of Yunnan University(Natural Sciences Edition)

基　　金：曲靖师范学院校级项目资助(2008QN041);云南省高校先进功能材料与低维材料重点实验室建设项目资助

摘　　要：制备了NiOOH的涂膏式电极和粉末微电极,并对两种电极进行了循环伏安测试.测试结果表明,粉末微电极出现了还原峰和氧化峰,而涂膏式电极只出现了还原峰,表明粉末微电极的电极可逆性优于涂膏式电极;对于粉末微电极,其氧化峰及还原峰的峰电位、峰电流最终均趋于稳定,说明所制备NiOOH较为稳定;而其ΔE值最小仅为0.131 V,小于涂膏式电极所测值,说明粉末微电极用于循环伏安测试效果更好,所制备NiOOH样品晶格结构较为稳定,具有较好的电极可逆性.对造成涂膏式电极和粉末微电极测试结果差异的原因进行了分析探讨.In our reseach,paste electrode and powder microelectrode of NiOOH have been fabricated and their electrochemical property have been examined by cyclic voltammetry.The results show that there are one oxidation peak and one reduction peak for the powder microelectrode and only reduction peak for the paste electrode.It indicates that powder microelectrode has better reversibility than the paste electrode.As for the powder microelectrode,its potential and current of the oxidation peak and reduction peak will become stable eventually.It demonstrates the NiOOH sample is very stable.Moreover,the minimum among all △E values is 0.131 V and is smaller than the paste electrode.It illustrates that the powder microelectrode is better than the other electrode for cyclic voltammetry,the NiOOH sample has very stable crystal lattice and better reversibility.Furthermore,the reason for the cyclic voltammetry measurement results difference between paste electrode and powder microelectrode was studied in this paper.

关 键 词：NIOOH 电极 循环伏安测试 

分 类 号：O646.54[理学—物理化学]