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    侯鹏鑫, 姜恺悦, 翟光群, 庄小东. 基于并二噻吩桥联聚吡咯薄膜的微型超级电容器[J]. 功能高分子学报, 2021, 34(5): 434-443. doi: 10.14133/j.cnki.1008-9357.20210110001
    引用本文: 侯鹏鑫, 姜恺悦, 翟光群, 庄小东. 基于并二噻吩桥联聚吡咯薄膜的微型超级电容器[J]. 功能高分子学报, 2021, 34(5): 434-443. doi: 10.14133/j.cnki.1008-9357.20210110001
    HOU Pengxin, JIANG Kaiyue, ZHAI Guangqun, ZHUANG Xiaodong. Thieno[3,2-b]thiophene-Bridged Polypyrrole Film-Based Micro-Supercapacitors[J]. Journal of Functional Polymers, 2021, 34(5): 434-443. doi: 10.14133/j.cnki.1008-9357.20210110001
    Citation: HOU Pengxin, JIANG Kaiyue, ZHAI Guangqun, ZHUANG Xiaodong. Thieno[3,2-b]thiophene-Bridged Polypyrrole Film-Based Micro-Supercapacitors[J]. Journal of Functional Polymers, 2021, 34(5): 434-443. doi: 10.14133/j.cnki.1008-9357.20210110001

    基于并二噻吩桥联聚吡咯薄膜的微型超级电容器

    Thieno3,2-bthiophene-Bridged Polypyrrole Film-Based Micro-Supercapacitors

    • 摘要: 将富电子的并二噻吩单元作为吡咯单体的桥联基团,得到具有四臂活性位点的吡咯单体;再利用液液界面的氧化聚合反应,直接制备得到连续、大面积的超薄聚吡咯膜。通过直接激光刻蚀的方法,制备了微型超级电容器,并研究了其通过循环伏安曲线、阻抗测试、相位角测试等表征电容器的电化学性能。结果表明,基于该薄膜的微型超级电容器的面积比电容可达1.10 mF/cm2,体积比电容可达68.4 F/cm3,等效串联电阻为4.2 Ω,最大能量密度为9.50 mW·h/cm3,最大功率密度为1433 W/cm3

       

      Abstract: Polypyrrole, one of the famous conventional conductive polymers, has been well studied in the past decades. Due to the rational controlling methods of morphology and structure, polypyrrole-based materials have shown great potential in the field of energy conversion and storage. For example, polypyrrole could contribute excellent pseudocapacitance as electrode material for supercapacitors. However, synthesis of two-dimensional polypyrrole or ultra-thin films remains a challenge because of the easy aggregation and poor solubility features. In this work, the electron-rich thieno3,2-bthiophene unit is used to bridge pyrrole monomers to produce four-armed bipyrrole monomer. At liquid-liquid interface, conventional oxidative polymerization reaction can take place and uniform polypyrrole film with large area can be easily produced. Through directly laser scribing, interdigitated micro-supercapacitors based on Au layer supported polypyrrole film can be produced. After evaluation through cyclic voltammetry curves, impedance curves, etc., the micro-supercapacitors show areal specific capacitance of 1.10 mF/cm2, volumetric specific capacitance of 68.4 F/cm3, equivalent series resistance(ESR) of 4.2 Ω. The maximum energy density and power density of as-prepared micro-supercapacitors reach 9.50 mW·h/cm3 and 1 433 W/cm3, respectively.

       

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