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

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2 000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。 

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

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 2 000 cyclic voltammetry test and has excellent electrochemical performance.