首页|镍掺杂聚苯胺/生物质炭复合材料的电化学性能

镍掺杂聚苯胺/生物质炭复合材料的电化学性能

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  • 国家科技期刊平台
  • NETL
  • NSTL
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为制备高性能、低成本的电极材料,本文以八月瓜果皮生物质炭(BC)为基质,六水合硝酸镍、苯胺为原料,通过化学氧化聚合法合成了镍离子掺杂聚苯胺包覆生物质炭复合材料(Ni@PANI/BC).通过扫描电镜(SEM)及能谱仪(EDS)、X射线光电子能谱(XPS)、热重分析(TG)、比表面积测试(BET)等表征手段对其结构进行表征,循环伏安法(CV)、恒电流充放电(GCD)测试和电化学阻抗谱(EIS)对其进行电化学性能测定,考察了镍离子掺杂对Ni@PANI/BC结构和电化学性能的影响.研究表明,镍离子掺杂聚苯胺包覆生物质炭形成了多孔交联网状结构、比表面积大、导电性能良好的复合材料.当六水合硝酸镍与苯胺、BC质量比为1.5∶5∶3时,所得的电极材料电化学性能最佳.在1 A/g电流密度下,Ni@PANI/BC质量比电容最高可达608.4 F/g,在10 A/g下,充放电循环5 000次,容量保持率为85.4％,该材料具有与文献报道相关材料相媲美的电化学性能.
Electrochemical Properties of Ni-Doped Polyaniline/Biomass Carbon Composites
In order to prepare high-performance and low-cost electrode materials,nickel ion-doped polyANI-coated biomass carbon composite materials(Ni@PANI/BC)were synthesized by chemical oxidation polymerization using August melon peel biomass carbon(BC)as the matrix,and nickel nitrate and aniline as raw materials.The structures of the Ni@PANI/BC composites were characterized by SEM,EDS,X-ray photoelectron energy spectrum(XPS),thermal weight analysis(TG)and specific surface area test(BET),and the electrochemical properties of the composites were measured by cyclic voltammetry(CV),constant current charge and discharge(GCD)test and electrochemical impedance spectroscopy(EIS).The effects of nickel ion doping on the structure and electrochemical properties of Ni@PANI/BC were investigated.It is shown that nickel ion doped BC forms a porous cross-linked mesh porous structure with large specific surface area and good electrical conductivity.When the mass ratio of nickel hydrate nitrate,aniline and BC is 1.5∶5∶3,the obtained electrode material has the best electrochemical performance.At 1 A/g current density,Ni@PANI/BC mass capacitance is up to 608.4 F/g,5 000 cycles with a capacity retention rate of 85.4％,which demonstrates Ni@PANI/BC materials have electrochemical properties comparable to the relevant materials reported in the literature.

biomass carbonpolyanilinechemical oxidation polymerizationcompositecapacitanceelectrochemical property

张丹丹、田满泽、鄢波、任俊鹏、周进康

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贵州师范学院化学与材料学院,贵阳 550018

生物质炭 聚苯胺 化学氧化聚合法 复合材料 电容 电化学性能

贵州省科学技术基金项目贵州省科学技术基金项目贵州省教育厅高等学校重点实验建设项目贵州省教育厅人才成长项目国家级大学生创新训练项目

黔科合基础-ZK[2021]一般254黔研合平台人才[2019]5778-08黔教技[2023]021黔教合KY字[2022]299号202314223016

2024

人工晶体学报
中材人工晶体研究院

人工晶体学报

CSTPCD北大核心
影响因子：0.554
ISSN：1000-985X
年,卷(期)：2024.53(7)
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