摘要
制备了聚苯胺包覆CoFe类普鲁士蓝纳米立方(CoFePBA@PANI)复合材料,采用XRD、FTIR、SEM和TEM对CoFePBA@PANI复合材料的结构和形貌进行表征,利用循环伏安法(CV)、恒电流充放电法及交流阻抗法(EIS)对CoFePBA@PANI复合材料的电化学性能进行了考察。结果表明:通过植酸的配位作用促使苯胺在具有面心立方结构的CoFePBA表面发生聚合反应,形成了具有核-壳结构的CoFePBA@PANI复合材料。系统地研究了PANI的含量对CoFePBA@PANI复合材料电化学性能的影响,CoFePBA@PANI复合材料在0.5 mol/L Na2SO4和H2SO4的混合酸性介质中,在1 A/g电流密度下,比电容值达到401.2 F/g,电流密度增大至10 A/g时,比电容仍能保持在367.3 F/g。
The polyaniline coated CoFe Prussian blue analogue(CoFePBA@PANI)composites were synthesized to seek high electrochemical performance.The structure and morphology of CoFePBA@PANI composite were characterized by XRD,FTIR,SEM and TEM.The electrochemical properties of CoFePBA@PANI composite were investigated by cyclic voltammetry(CV),galvanostatic charge-discharge test and electrochemical impedance spectroscopy(EIS).By using phytic acid(PA)as a chelating agent,the PANI is coated on the surface of CoFePBA to form the CoFePBA@PANI composite with core-shell structures.In the mixed acidic electrolyte of 0.5 mol/L Na2SO4 and H2SO4,the CoFePBA@PANI composite exhibits specific capacitances as high as 401.2 F/g and 367.3 F/g at the current density of 1 A/g and 10 A/g,respectively.
作者
张政
刘洪达
宋朝霞
刘伟
ZHANG Zheng;LIU Hongda;SONG Zhaoxia;LIU Wei(School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;College of Life Science,Dalian Minzu University,Dalian 116600,China)
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2020年第3期731-739,共9页
Acta Materiae Compositae Sinica
基金
国家自然科学基金(51877029)
作者简介
通信作者:宋朝霞,博士,副教授,硕士生导师,研究方向为超级电容器储能材料,E-mail:szx@dlnu.edu.cn
