High-performance supercapacitors based on free-standing SiC@PEDOT nanowires with robust cycling stability

作     者：Wenna Liu Xiaoxiao Li Weijun Li Yumin Ye Hong Wang Peipei Su Weiyou Yang Ya Yang Wenna Liu;Xiaoxiao Li;Weijun Li;Yumin Ye;Hong Wang;Peipei Su;Weiyou Yang;Ya Yang

作者机构：Ningbo Key Laboratory of Specialty PolymersSchool of Materials Science and Chemical EngineeringNingbo UniversityNingbo 315211ZhejiangChina Institute of MaterialsNingbo University of TechnologyNingbo 315016ZhejiangChina CAS Center for Excellence in NanoscienceBeijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2022年第31卷第3期

页      面：30-37,I0002页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 07[理学] 08[工学] 070205[理学-凝聚态物理] 0820[工学-石油与天然气工程] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 080501[工学-材料物理与化学] 0827[工学-核科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(NSFC,51972178 and 52072041) the Natural Science Foundation of Zhejiang Province(ZJNSF,LY20E030003) the Science and Technology Project of Jiangsu Province(BE2020111) the National Key R&D Project from Minister of Science and Technology in China(2016YFA0202701) the University of Chinese Academy of Sciences(Y8540XX2D2) 

主　　题：PEDOT SiC nanowires Supercapacitor Energy storage Cycling stability 

摘      要：Conductive polymers as one of the candidate materials with pseudocapacitor behavior have inspired wide attentions,because of their high conductivity,fexibility,low cost and excellent ***,the intrinsically poor cycling stability induced by the volume change over the doping/dedoping redox process limits their practical ***,we report the exploration of electrodes with robust cycling capacity for supercapacitors(SCs),which are rationally designed by coating conductive poly(3,4-ethylenedioxythiophene)(PEDOT)around free-standing SiC nanowires using an all-dry oxidative chemical vaper deposition(oCVD)*** as-constructed SiC@PEDOT nanowire architecture enables a specific capacitance of 26.53 m F/cm^(2)at 0.2 m A/cm^(2),which is~370%to that of SiC nanowire counterpart(7.04 m F/cm^(2)).Moreover,their aqueous-based SCs exhibit robust cycling stability with104%capacity retention after 10000 cycles,which is among the highest values achieved for PEDOTbased SCs.