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General synthesis of hollow mesoporous conducting polymers by dual-colloid interface co-assembly for high-energy-density micro-supercapacitors

引用

Journal of Energy Chemistry 2021年第11期30卷 145-152,I0004页

作者： Jing Cui Fei-Fei Xing Hao Luo Jie-Qiong Qin Yan Li Yonghui Zhong Facai Wei Jianwei Fu Chengbin Jing Jiangong Cheng Zhong-Shuai Wu Shaohua Liu State Key Laboratory of Precision Spectroscopy and Department of Materials School of Physics and Electronic ScienceEast China Normal University500 Dongchuan RoadShanghai 200241China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of Sciences457 Zhongshan RoadDalian 116023LiaoningChina Dalian National Laboratory for Clean Energy Chinese Academy of Sciences457 Zhongshan RoadDalian 116023LiaoningChina University of Chinese Academy of Sciences 19 A Yuquan RoadShijingshan DistrictBeijing 100049China School of Chemistry and Molecular Engineering East China Normal University500 Dongchuan RoadShanghai 200241China School of Materials Science and Engineering Zhengzhou University100 Science AvenueZhengzhou 450002HenanChina State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences865 Changning RoadShanghai 200050China Shanghai Academy of Quality Management 258 Wuyi RoadShanghai 200050China

Rational design and precise regulation over the morphology, structure, and pore size of functional conducting mesoporous polymers with enriched active sites and shorten electron–ion transport pathway are extremely important for developing high-performance micro-supercapacitors (MSCs), but still remain a great challenge. Herein, a general dual-colloid interface co-assembly strategy is proposed to fabricate hollow mesoporous polypyrrole nano-bowls (mPPy-nbs) for high-energy-density solid-state planar MSCs. By simply adjusting the size of block copolymer micelles, the diameter of polystyrene nanospheres and the amount of pyrrole monomer, mesopore size of the shell, void and shell thickness of mPPy-nbs can be simultaneously controlled. Importantly, this strategy can be further utilized to synthesize other hollow mesoporous polymers, including poly(tris(4-aminophenyl)amine), poly(1,3,5-triaminobenzene) and their copolymers, demonstrative of excellent universality. The structurally optimized mPPy-nb exhibits high specific surface area of 122 m^(2) g^(−1)and large capacitance of 225 F g^(−1) at 1 mV s^(−1). Furthermore, the MSCs assembled by mPPy-nbs deliver impressive volumetric capacitance of 90 F cm^(−3) and energy density of 2.0 mWh cm^(−3), superior to the most reported polymers-based MSCs. Also, the fabricated MSCs present excellent flexibility with almost no capacitance decay under varying bending states, and robust serial/parallel self-integration for boosting voltage and capacitance output. Therefore, this work will inspire the new design of mesoporous conducting polymer materials toward high-performance microscale supercapacitive devices.

关键词： Interface co-assembly dual-colloids Mesopore Hollow nano-bowl Micro-supercapacitors

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