高循环性能的FeCo_(2)S_(4)/碳纤维复合电极材料  

FeCo_(2)S_(4)/carbon fiber composite electrode material with high cycling performance

作　　者：马骏 彭景富 苏冬云[3] 吉内德·阿里·赛义德 MAJun;PENG Jingfu;SU Dongyun;SYED Junaid·Ali(School of Aviation and Transportation,Jiangsu College of Engineering and Technology,Nantong Jiangsu 226007,China;Nantong Institute of Materials Engineering Technology,Nanjing University,Nantong Jiangsu 226019,China;College of Mechanical Engineering,Nantong Vocational University,Nantong Jiangsu 226007,China;International Center for Chemical and Biological Sciences,H.E.J.Research Institute of Chemistry,University of Karachi,Karachi 75270,Pakistan)

机构地区：[1]江苏工程职业技术学院航空与交通工程学院,江苏南通226006 [2]南通南京大学材料工程技术研究院,江苏南通226019 [3]南通职业大学机械工程学院,江苏南通226007 [4]卡拉奇大学化学研究所国际化学与生物科学中心,卡拉奇75270

出　　处：《电源技术》2022年第12期1457-1460,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金(51671103);江苏省产学研合作项目(BY2021311);江苏省人社厅:江苏省“六大人才高峰”培养对象(2018-XCL-206);江苏省委组织部:江苏省“333工程”高层次人才[(2022)3-16-862];江苏省自然科学基金面上项目(BK20161289);南通市人才办:2020年南通市第五期“226工程”科研项目(16);南通市科技项目(MS12020063,MSZ21010);江苏工程职业技术学院重大项目(GYKY/2020/1);江苏省高职院校青年教师企业实践培训项目(2020QYSJ193);江苏省交通运输职业教育科研课题(2021-B09);江苏省高等教育教改课题(2021JSJG036,2021JSJG559);江苏省职业教育教学改革研究课题(ZYB547);第二批国家级职业教育教师教学创新团队课题(ZI2021020406)。

摘　　要：对电极材料的结构进行优化设计,提高电活性材料的有效利用率。提出一种简单的一步电沉积双金属硫化物的策略,成功设计并制备了FeCo_(2)S_(4)双金属硫化物,沉积在高导电性、高比表面积碳纤维布上的复合材料,并应用于超级电容器作为电极材料。通过电沉积法获得的FeCo_(2)S_(4)/CFC(FeCo_(2)S_(4)/碳纤维布)复合材料不仅改善了机械稳定性,并且进一步提升了复合材料的倍率性能和储能能力。研究结果表明:FeCo_(2)S_(4)/CFC具有出色的电化学性能,在1 A/g时具有505.33 F/g的高比电容,并且具有良好的倍率性能(10 A/g时比电容仍达到324 F/g)。出色的倍率性能归因于碳纤维布的加入,提高了复合材料的导电性。同时,对FeCo_(2)S_(4)/CFC材料进行10000次循环后,仍然可保持95.25%的循环稳定性。The structure of the electrode material was optimized to improve the effective utilization rate of the electroactive material.A simple one-step electrodeposition strategy of bimetallic sulfide was proposed,and FeCo_(2)S_(4) bimetallic sulfide was successfully designed and prepared.The composite material deposited on carbon fiber cloth with high conductivity and high specific surface area was applied to supercapacitors as electrode materials.The FeCo_(2)S_(4)/CFC(FeCo_(2)S_(4)/carbon fiber cloth)composite obtained by electrodeposition not only improves the mechanical stability,but also further improves the rate performance and energy storage capacity of the composite.The results show that FeCo_(2)S_(4)/CFC has excellent electrochemical performance,high specific capacitance of 505.33 F/g at 1 A/g,and good rate performance(specific capacitance still reaches 324 F/g at 10 A/g).The excellent rate performance is attributed to the addition of carbon fiber cloth,which improves the conductivity of the composite.At the same time,the cycling stability of FeCo_(2)S_(4)/CFC can still be maintained at 95.25%after 10000 cycles.

关 键 词：铁钴硫化物/碳纤维布 超级电容器 比电容 电极材料 

分 类 号：TM53[电气工程—电器]