钴酸镍基纳米材料在超级电容器中的研究进展  

Research progress of nickel cobaltite based nanomaterials in supercapacitors

作　　者：何广源 陈学敏 王雨婷 李发堂[1] 张子健 许文浩 HE Guangyuan;CHEN Xuemin;WANG Yuting;LI Fatang;ZHANG Zijian;XU Wenhao(College of Science,Hebei University of Science and Technology,Shijiazhuang 050018,Hebei,China)

机构地区：[1]河北科技大学理学院,河北石家庄050018

出　　处：《化工进展》2021年第7期3813-3825,共13页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金青年科学基金(51802075);河北省自然科学基金青年科学基金(B2018208090);河北省高等学校青年拔尖人才项目(BJ2019002)。

摘　　要：电极材料是决定超级电容器性能的关键因素。钴酸镍纳米材料因其合成简单,价格低廉,储量丰富且理论比电容较高等优点,成为超级电容器电极材料的研究热点。但钴酸镍纳米材料导电率较低、比表面积较小且电化学稳定性较差等缺点严重影响了其实际应用。本文简单介绍了钴酸镍纳米材料的晶体结构以及其作为超级电容器电极材料时的储能机理,同时结合一些示例归纳总结了钴酸镍基纳米材料的制备方法以及钴酸镍纳米材料的改性研究现状,包括形貌改性、复合改性及引入缺陷。最后指出,钴酸镍基纳米材料的环保且高效的制备方法,通过掺杂或缺陷等方法改善其电化学性能,增大其工作电压窗口以及探索适用于钴酸镍基超级电容器工作的电解液,将是未来研究的重点。Electrode materials play a vital role on the performance of supercapacitors.Hence,it is important to develop novel electrode materials with excellent properties.NiCo2O4 has the advantages of easy synthesis,low cost,abundant natural resources and high theoretical capacitance,and has been widely studied as novel electrode materials for supercapacitors.However,the low conductivity,small specific surface area and poor electrochemical stability of NiCo2O4 has seriously limited its application.In this review,we present a brief description of the structure of NiCo2O4 and the energy storage mechanism of supercapacitors.Furthermore,we review several synthetic methods of NiCo2O4 and current modification researches,including morphology modification,composite modification and imported defects.In the future,the research should focus on the environmental friendly and efficient preparation method,improving the electrochemical performance by doping or defects,increasing the working voltage window and exploring suitable electrolytes.

关 键 词：超级电容器 钴酸镍 制备方法 复合电极材料 赝电容 

分 类 号：TB33[一般工业技术—材料科学与工程]