Exceptional rate capability from carbon-encapsulated polyaniline supercapacitor electrodes

作     者：Ash Stott Mehmet O.Tas Elaine Y.Matsubara Mateus G.Masteghin Jose M.Rosolen Radu A.Sporea S.Ravi P.Silva Ash Stott;Mehmet O.Tas;Elaine Y.Matsubara;Mateus G.Masteghin;Jose M.Rosolen;Radu A.Sporea;S.Ravi P.Silva

作者机构：Advanced Technology InstituteGuildford Surrey GU27XHUK Departamento de QuímicaFaculdade de FilosofiaCiên-cias e Letras de Ribeirão Preto1-Universidade de São PauloAvenida Bandeirantes 390014040-901Ribeirão Preto SP Brazil 

出 版 物：《Energy & Environmental Materials》 (能源与环境材料（英文）)

年 卷 期：2020年第3卷第3期

页      面：389-397页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0706[理学-大气科学] 0702[理学-物理学] 

基　　金：the UK Engineering and Physical Sciences Research Council(EPSRC)for funding this work under the Doctoral Training Partnership(DTP)award(EP/N509772/1) the Sao Paulo Research Foundation FAPESP(grant numbers 2017/04759-2 and 2017/50380-5) financial support from EPSRC(EP/L02263x/1) the Brazilian Government FAPESP SPRINT Program in the conduct of this work 

主　　题：CNT electrodeposition high rate polyaniline supercapacitor 

摘      要：A high-rate capability carbon-encapsulated polyaniline(PANI)composite is fabricated by a novel electrodeposition method of polyaniline on a carbon nanotube(CNT)forest,grown on carbon *** is followed by coating of an amorphous carbon layer via hydrothermal carbonization(HTC)of glucose,forming a three-layer *** demonstrate that a slow scan rate,voltage-restricted electrodeposition process can be used to produce a uniform PANI coating on individual CNTs throughout the *** CNT forest structure offers excellent electronic and structural connection for the PANI nanofiber network,while the coating of amorphous carbon reduces electrode resistance,promoting enhanced electrochemical performance and reinforced structural stability during charging and *** as-prepared CNT/PANI/HTC composite exhibited a high specific capacitance of 571 F g-1 at 1 A g-1,and 557 F g-1 at 100 A g-1,whilst demonstrating a record rate capability of 98%capacitance retention,when the current density is increased *** advanced rate performance indicates that a slow electrodeposition process produces an electrochemically stable three-layer composite with enhanced diffusion ***,the method developed in this work establishes further control on the electrochemical deposition of energy storage materials,for high-rate capability.