Fabrication of 3D ordered needle-like polyaniline@hollow carbon nanofibers composites for flexible supercapacitors

作     者：Xuepeng Ni Yang Jiang Haoyu Chen Kunming Li Huifang Chen Qilin Wu Anqi Ju Xuepeng Ni;Yang Jiang;Haoyu Chen;Kunming Li;Huifang Chen;Qilin Wu;Anqi Ju

作者机构：College of Materials Science and Engineering&State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsDonghua UniversityShanghai 201620China Zhejiang Provincial Key Laboratory of Yarn Material Forming and Composite Processing TechnologyJiaxing UniversityShanghai 201620China Key Laboratory of High-Performance Fibers&ProductsMinistry of EducationDonghua UniversityJiaxing 314001China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2021年第32卷第8期

页      面：2448-2452页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by Fundamental Research Funds for the Central Universities (No.2232019A3-11) National Natural Science Foundation of China (No.51503086) Zhejiang Provincial Natural Science Foundation (No.LQ19E030014) Open Project Program of Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province (No.MTC2019-13)。 

主　　题：Flexible Polyaniline Electrospinning Hollow carbon nanofibers Supercapacitors 

摘      要：Carbon nanofiber-based supercapacitors have broad prospects in powering wearable electronics owing to their high specific capacity,fast charge/discharge process,along with long-cycling life.Herein,a poly(ac rylo n it rile-co-β-methyl hydrogen itaconate) copolymer was prepared and used to synthesize flexible hollow carbon nanofibers(HCNFs) via an electrospinning method without breaking after multiple bending.Subsequently,the inner and outer surfaces of HCNFs were evenly covered with ordered needlelike polyaniline(PANI) through in-situ polymerization methods to obtain three-dimensional flexible HCNFs/PANI composites,which exhibited a high capacity 1196.7 F/g at 1 A/g and good cycling stability(90.1% retention at 5 A/g after 3000 cycles).The symmetrical supercapacitor based on the HCNFs/PANI composites also delive red an outsta nding electrochemical performance with high energy/power density(60.28 Wh/kg at 1000 W/kg) and superior cycling durability(90% capacitance retention after at 5 A/g3000 cycles),which confirmed that the HCNFs/PANI composites had a wide application potential in flexible energy storage devices.