文献类型：期刊文献

英文题名：Self-Supporting Covalent Conjugation Electrodes with in Situ Building Aniline on Carbon Fibers and Reduced Graphene Oxide for Stable Flexible Supercapacitors

作者：Luo, Yan[1]; Ji, Peilong[1]; Li, Jiangwei[1]; Wu, Pengcheng[1]; Wang, Yifan[1]; Meng, Guihua[1]; Wu, Jianning[1]; Yang, Shengchao[1]; Chen, Li[1]; Liu, Zhiyong[1]; Yu, Feng[1]; Hou, Juan[1]; Liu, Jichang[1,2]; Guo, Xuhong[1,2]

机构：[1] School of Chemistry and Chemical Engineering, Shihezi University, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Bingtuan, Shihezi, Xinjiang, 832003, China; [2] School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220121611)

语种：英文

外文关键词：Aniline - Capacitance - Charge transfer - Electric discharges - Electrodes - Flexible electronics - Graphene

摘要：Practical applications of flexible electronics have challenged the stability and cycle performance of flexible electrodes under continuous mechanical deformation, thus preparing active material with reinforced adhesion to collector for high charge storage is still a challenge. A covalent modification strategy is present here to improve the stability of electrodes. Graphitized carbon cloth (GCC) and reduced graphene oxide (rGO) are grafted aniline by Suzuki reaction, and further bond together by polymerization of aniline (PANI). The electrode (GCC-PANI-rGO) modified by covalent bonds is stable enough to remain 97.73% initial specific capacitance after charge-discharge 15000 times at 40 mA/cm 2 . The capacitance retention of asymmetric flexible solid supercapacitor (FSSC) prepared by GCC-PANI-rGO and GCC is 108.78% after 10000 times mechanical folding. The electrode formed a π-π conjugation system through Suzuki reaction possesses low charge transfer resistance (0.428 Ω), and exhibits high specific capacitance and energy density that up to 11.825 F/cm 2 and 1.642 mWh /cm 2 at 1 mA/cm 2 . The energy density of FSSC is 0.266 mWh/cm 2 at 1 mA/cm 2 and surpasses most FSSC based on PANI and graphene. This work gives an essential covalently synthetic strategy for flexible supercapacitor with stable electrochemical performance in application. ? 2022, The Authors. All rights reserved.