物理化学学报 >> 2017, Vol. 33 >> Issue (9): 1828-1837.doi: 10.3866/PKU.WHXB201705089

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基于三维多孔石墨烯/含钛共轭聚合物复合多孔薄膜的柔性全固态超级电容器

杜惟实1,吕耀康1,2,*(),蔡志威3,张诚1,*()   

  1. 1 浙江工业大学化学工程学院,杭州310014
    2 清华大学化学系,北京100084
    3 浙江省食品药品检验研究院,杭州310051
  • 收稿日期:2017-03-21 发布日期:2017-07-05
  • 通讯作者: 吕耀康,张诚 E-mail:yaokanglv@zjut.edu.cn;czhang@zjut.edu.cn
  • 基金资助:
    国家自然科学基金(21501148);浙江省自然科学基金(LQ15E030002);浙江省自然科学基金(LY15E030006);和中国博士后科学基金(2016M570075)

Flexible All-Solid-State Supercapacitor Based on Three-Dimensional Porous Graphene/Titanium-Containing Copolymer Composite Film

Wei-Shi DU1,Yao-Kang LÜ1,2,*(),Zhi-Wei CAI3,Cheng ZHANG1,*()   

  1. 1 College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
    2 Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
    3 Zhejiang Institute For Food and Drug Control, Hangzhou 310051, P. R. China
  • Received:2017-03-21 Published:2017-07-05
  • Contact: Yao-Kang Lü,Cheng ZHANG E-mail:yaokanglv@zjut.edu.cn;czhang@zjut.edu.cn
  • Supported by:
    The project was supported by the National Natural Science Foundation of China(21501148);Zhejiang Provincial Natural Science Foundation of China(LQ15E030002);Zhejiang Provincial Natural Science Foundation of China(LY15E030006);China Postdoctoral Science Foundation(2016M570075)

摘要:

采用Fe3+离子交联的方法制备氧化石墨烯水凝胶,经化学还原制备出一种新型的三维多孔石墨烯薄膜材料命名为rGO-Fe;通过电化学聚合法在rGO-Fe基底上进一步制备了一种三维多孔石墨烯/含钛共轭聚合物复合薄膜材料,命名为rGO-Fe/P(EDOT:P3C)-1-Ti。作为一种新型复合薄膜材料,rGO-Fe/P(EDOT:P3C)-1-Ti较rGO-Fe具有更好的抗拉伸性能,平均厚度为3 μm的rGO-Fe/P(EDOT:P3C)-1-Ti薄膜,可承受载荷拉力0.97 N,优于相同厚度的rGO-Fe薄膜(0.76N)。将rGO-Fe/P(EDOT:P3C)-1-Ti薄膜作为自支撑电极制备了柔性全固态超级电容器,表现出优良的电容性能,且在弯折状态下仍能正常工作。当电流密度为0.1 A·g-1时,该柔性全固态超级电容器的质量比容量为71.13·F·g-1,面积比容量为101 mF·cm-2,当电流密度为0.6 A·g-1时,其质量比容量为18.14 F·g-1,面积比容量为25.8 mF·cm-2

关键词: 石墨烯, 电化学聚合, 交联, 多孔薄膜, 含钛共轭聚合物, 柔性全固态超级电容器

Abstract:

A new three-dimensional (3D) porous graphene thin film named rGO-Fe was prepared through chemical reduction from Fe3+ ions cross-linking graphene oxide hydrogel, and a 3D porous graphene/titanium-containing conjugated polymer composite film named rGO-Fe/P(EDOT:P3C)-1-Ti was further prepared via electrochemical polymerization on the rGO-Fe substrate. As a new composite film, rGO-Fe/P(EDOT:P3C)-1-Ti film with average thickness of 3 μm can withstand the tensile load 0.97 N which is better than that of rGO-Fe (0.76 N). We compared the electrochemical properties of these film materials, and prepared self-supporting electrodes and a flexible all-solid-state supercapacitor based on rGO-Fe/P(EDOT:P3C)-1-Ti. Galvanostatic charge-discharge test results showed that the as prepared flexible supercapacitor delivered a gravimetric specific capacitance of 71.13 F·g-1 (18.14 F·g-1) and an area specific capacitance of 101 mF·cm-2 (25.8 mF·cm-2) at 0.1 A·g-1 (0.6 A·g-1).

Key words: Graphene, Electrochemical polymerization, Cross-linking, Porous film, Titanium-containing conjugated polymer, Flexible all-solid-state supercapacitor

MSC2000: 

  • O646