文献类型：期刊文献

英文题名：Nanocellulose supported hierarchical structured polyaniline/nanocarbon nanocomposite electrode via layer-by-layer assembly for green flexible supercapacitors

作者：Lyu, Shaoyi[1] Chen, Yanping[1,2] Zhang, Longfei[1,3] Han, Shenjie[1] Lu, Yun[1] Chen, Yuan[1] Yang, Na[1] Chen, Zhilin[1] Wang, Siqun[1,3]

第一作者：Lyu, Shaoyi

通信作者：Lyu, SY[1];Wang, SQ[1];Wang, SQ[2]

机构：[1]Chinese Acad Forestry, Hunan Collaborat Innovat Ctr Effect Utilizing Woo, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Engn Res Ctr Cellulose & Its Derivat, Beijing 100081, Peoples R China;[3]Univ Tennessee, Ctr Renewable Carbon, Knoxville, TN 37996 USA

年份：2019

卷号：9

期号：31

起止页码：17824-17834

外文期刊名：RSC ADVANCES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000471914300035)】；

基金：This work was supported by the Special Fund for Forest Scientific Research in the Public Welfare (No. 201504603) and the Fundamental Research Funds of CAF (No. CAFYBB2017ZX003).

语种：英文

外文关键词：Aerogels - Cellulose - Electrolytes - Graphene - Hybrid materials - Hydrophilicity - Multiwalled carbon nanotubes (MWCN) - Nanocellulose - Nanocomposites - Nickel compounds - Polyaniline - Supercapacitor - Yarn

摘要：The development of a hierarchical structured multicomponent nanocomposite electrode is a promising strategy for utilizing the high efficiency of an electroactive material and improving the electrochemical performance. We propose cellulose nanofibril (CNF) aerogels with a nanoscale fiber-entangled network as the skeleton (via layer-by-layer (LbL) assembly) of electroactive materials polyaniline (PANi), carboxylic multiwalled carbon nanotubes (CMWCNTs), and graphene oxide (GO) to obtain structurally ordered polymer-inorganic hybrid nanocomposite electrodes for high-capacity flexible supercapacitors. The uniformly distributed multilayer nanoarchitecture, interconnected network, and hydrophilicity of the electrode provide a high specific surface area, excellent ion diffusion channels, and large effective contact area, thereby improving the electrochemical performance of the supercapacitor electrode. The specific capacitance of the CNF-[PANi/CMWCNT](10) (CPC10) and CNF-[PANi/RGO](10) (CPR10) electrodes reaches 965.80 and 780.64 F g(-1) in 1 M aqueous H2SO4 electrolyte, respectively; the corresponding values in PVA/H3PO4 electrolyte are 1.59 and 1.46 F cm(-2). In addition, the assembled symmetric supercapacitors show good energy densities of 147.23 and 112.32 mW h cm(-2), as well as excellent durability and flexibility. Our approach offers a simple and effective method for fabricating an ideal well-structured nanocomposite electrode for green and flexible energy storage devices via LbL assembly.