Co掺杂FeS2/CNTs的制备及其超级电容器性能  

Synthesis and Supercapacitor Performance of Cobalt-doped FeS2/CNTs

作　　者：郑璐 周鹏 文晓刚[1] ZHENG Lu;ZHOU Peng;WEN Xiao-gang(School of Materials Science and Engineering,Sichuan University,Sichuan Chengdu 610065,China)

机构地区：[1]四川大学材料科学与工程学院,四川成都610065

出　　处：《广州化工》2020年第16期49-51,55,共4页GuangZhou Chemical Industry

基　　金：四川省科技计划重点研发项目(2018GZ0463);教育部新世纪优秀人才支持计划(NCET-10-0605)。

摘　　要：采用一步水热法,合成了Co掺杂的FeS 2/碳纳米管(CNTs)复合纳米材料。用XRD和SEM对材料的组成、晶相、尺寸及形貌进行了分析,结果表明纯的FeS 2的是由小颗粒聚集而成,而在Co元素和CNTs的共同作用下得到了多孔片状的形貌。加入CNTs极大地提升了材料的比表面积因而提升了材料的电化学性能。所获得的Co掺杂FeS 2/CNTs电极具有较高的比容量(257.1 F·g^-1)和良好的循环寿命。Co-doped FeS 2/carbon nanotube(CNTs)composite nanomaterials were synthesized by one-step hydrothermal method.The composition,crystal phase,size and morphology of the materials were analyzed by XRD and SEM.The results showed that the pure FeS 2 was formed by the aggregation of small particles,while the porous sheet morphology was obtained under the combined action of Co elements and CNTs.Adding CNTs greatly improved the specific surface area and the electrochemical performance of the material.The obtained Co-doped FeS 2/CNTs electrode exhibited high specific capacity(257.1 F·g^-1)and good cycle life.

关 键 词：钴掺杂 硫化亚铁 碳纳米管 

分 类 号：TQ152[化学工程—电化学工业]