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 |
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引用本文: | 杨云强,张佳丽,章海霞,侯莹. 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[J]. 复合材料学报, 2020, 37(12): 3160-3167. DOI: 10.13801/j.cnki.fhclxb.20200403.001 |
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作者姓名: | 杨云强 张佳丽 章海霞 侯莹 |
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作者单位: | 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 |
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基金项目: | 国家自然科学基金(51703150;51701137);山西省面上自然基金(201701D121043) |
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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。
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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 |
收稿时间: | 2020-01-21 |
Preparation of poly 3,4-ethylenedioxythiophene/nanoporous gold composite electrode and its application in supercapacitors |
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Affiliation: | Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China |
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Abstract: | 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. |
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