聚3,4-乙烯二氧噻吩/纳米多孔金复合电极的制备及其在超级电容器中的应用  

Preparation of poly 3,4-ethylenedioxythiophene/nanoporous gold composite electrode and its application in supercapacitors

作　　者：杨云强 张佳丽 章海霞[1] 侯莹[1] YANG Yunqiang;ZHANG Jiali;ZHANG Haixia;HOU Ying(Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学新材料界面科学与工程教育部重点实验室,太原030024

出　　处：《复合材料学报》2020年第12期3160-3167,共8页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(51703150,51701137);山西省面上自然基金(201701D121043)。

摘　　要：通过一步法将单体3,4-乙烯二氧噻吩(EDOT)电化学聚合到具有高导电率和大比表面积的纳米多孔金(NPG)上,成功制备了具有完美核壳结构的聚3,4-乙烯二氧噻吩/纳米多孔金(PEDOT/NPG)复合电极材料。通过SEM、TEM、Raman和X射线能谱仪对复合电极材料的形貌、微观结构、振动特性和元素组成进行了分析和表征。使用电化学工作站对其电化学性能进行了系统的研究。在三电极体系中,PEDOT/NPG复合电极材料在3 A/g的低电流密度下,质量比电容可以达到555 F/g,其能量密度和功率密度分别为177.58 W·h/kg和1.73 kW/kg。同时该电极材料经过2000次循环伏安测试后仍然可以保持最大电容的91.5%,电化学性能优异。The poly 3,4-ethylenedioxythiophene/nanoporous gold(PEDOT/NPG)composite electrode materials were prepared by electrochemically polymerizing monomer 3,4-ethylenedioxythiophene(EDOT)onto NPG with high conductivity and large specific surface area by one-step method.The scanning electron microscope(SEM),transmission electron microscope(TEM),Raman spectroscopy(Raman)and X-ray energy spectrometer were used to analyze the morphological structure and elemental composition of the composite electrode material.The electrochemical performance of the electrochemical workstation was studied systematically.The PEDOT/NPG electrode material has a mass specific capacitance of 555 F/g at low current density of 3 A/g,and its energy density and power density are 177.58 W·h/kg and 1.73 kW/kg,respectively.The electrode material can still maintain 91.5%of the maximum capacitance after 2000 cyclic voltammetry test and has excellent electrochemical performance.

关 键 词：纳米多孔金 3 4-乙烯二氧噻吩 比电容 循环稳定性 电化学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]