In-situ growth of nanowire WO_(2.72) on carbon cloth as a binder-free electrode for flexible asymmetric supercapacitors with high performance

作     者：Xiao Huang Zhiguo Zhang Huan Li Hongxia Wang Tingli Ma Xiao Huang;Zhiguo Zhang;Huan Li;Hongxia Wang;Tingli Ma

作者机构：Department of Life Science and System EngineeringKyushu Institute of Technology School of ChemistryPhysics and Mechanical EngineeringQueensland University of Technology School of Petroleum and Chemical EngineeringDalian University of Technology 

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

年 卷 期：2019年第28卷第2期

页      面：58-64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] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the Grant-in-Aid for Scientific Research (KAKENHI) Program,Japan (C,Grant Number 15K05597) Takahashi Industrial and Research Center for Solar Light Energy Conversion,Kyushu Institute of Technology 

主　　题：Solvothermal reaction Asymmetric supercapacitors High energy density Flexibility 

摘      要：For the first time,WO_(2.72) nanowires were in-situ grown on carbon cloth by a simple solvothermal *** nanowire WO_(2.72)/carbon cloth(NW WO_(2.72)/CC) electrode showed good electrochemical performance with specific capacitance(C_s) reaching up to 398 F g^(-1) at a current density of 2 A g^(-1).The capacitance of 240 F g^(-1) was retained at a high current density of 16 A g^(-1).To further evaluate the energy storage performance,flexible asymmetric supercapacitors(FASC_s) were fabricated using the activated carbon/carbon cloth(AC/CC) as negative electrode and NW WO_(2.72)/CC as positive electrode,*** FASC_s delivered a high energy density of 28 Wh kg^(-1) at a power density of 745 W kg^(-1) and 13 Wh kg^(-1) even at a high power density of 22.5 k W kg^(-1).More impressively,81% of the specific capacitance of the FASC_s was retained after 10,000 cycles,indicating excellent cycle *** work indicates the NW WO_(2.72)/CC holds a great potential for application in energy storage devices.