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, Shaoyi

机构：[1] Research Institute of Wood Industry, Chinese Academy of Forestry, Hunan Collaborative Innovation Center for Effective Utilizing of Wood and Bamboo Resources, Beijing, 100091, China; [2] Beijing Engineering Research Center of Cellulose and Its Derivatives, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China; [3] Center for Renewable Carbon, University of Tennessee, Knoxville, TN, 37996, United States

年份：2019

卷号：9

期号：31

起止页码：17824-17834

外文期刊名：RSC Advances

收录：EI(收录号：20192507076700);Scopus(收录号：2-s2.0-85067470286)

语种：英文

外文关键词：Electrolytes - Electrochemical electrodes - Graphene - Hybrid materials - Multiwalled carbon nanotubes (MWCN) - Nanocellulose - Supercapacitor - Aerogels - Capacitance - Hydrophilicity - Nanocomposites

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. ? The Royal Society of Chemistry 2019.