文献类型：期刊文献

英文题名：Layer-by-layer assembled polyaniline/carbon nanomaterial-coated cellulosic aerogel electrodes for high-capacitance supercapacitor applications

作者：Lyu, Shaoyi[1,2] Chen, Yanping[2,3] Han, Shenjie[2] Guo, Limin[2] Chen, Zhilin[2] Lu, Yun[2] Chen, Yuan[2] Yang, Na[2] Wang, Siqun[2,4]

第一作者：Lyu, Shaoyi

通信作者：Lyu, SY[1];Lyu, SY[2];Wang, SQ[2];Wang, SQ[3]

机构：[1]Chinese Acad Forestry, Res Inst Forestry New Technol, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[3]Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Engn Res Ctr Cellulose & Its Derivat, Beijing 100081, Peoples R China;[4]Univ Tennessee, Ctr Renewable Carbon, Knoxville, TN 37996 USA

年份：2018

卷号：8

期号：24

起止页码：13191-13199

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20181605035269);Scopus(收录号：2-s2.0-85045526644);WOS:【SCI-EXPANDED(收录号:WOS:000430018700019)】；

基金：This work was supported by the Special Fund of the Chinese Central Government for Basic Scientific Research Operations in Commonwealth Research Institutes (No. CAFINT2014K02), the Special Fund for Forest Scientific Research in the Public Welfare (No. 201504603), and Tennessee Experimental Station Project (#TEN00510).

语种：英文

外文关键词：Capacitance - Cellulose nanocrystals - Electrodes - Energy storage - Graphene - Multilayers - Multiwalled carbon nanotubes (MWCN) - Polyaniline - Pulp materials - Supercapacitor - Wood

摘要：Traditional layer-by-layer (LbL) assembled electrodes are mostly multilayer composites formed on two-dimensional membrane materials. In this case, the electroactive material cannot enter the interior of the substrate. With porous aerogels as the substrate, the LbL assembly of the electroactive material into the three-dimensional aerogel skeleton can be realised, greatly improving the utilisation and the electrochemical performance of the electroactive material. To create a promising aerogel electrode for high-performance energy storage devices, we herein report an aerogel based on wood pulp fibre (WPF) and cellulose nanocrystals (CNC), for use as a porous substrate for LbL assembly of nanostructural polyaniline (PANI) and graphene oxide (GO) or carboxylic multi-walled carbon nanotubes (CMCNT). Owing to the uniformly distributed multilayer nanoarchitecture, interpenetrating channels, and hydrophilic character of the cellulosic aerogel substrate, the produced electrodes of (PANI/CMCNT)(10) and (PANI/CMCNT)(10) both display high specific capacitances, favourable capacitance retention, good cycling stabilities, and structural flexibility. In the three-electrode test, their gravimetric specific capacitances are as high as 716.62 and 636.63 F g(-1), respectively. In addition, the assembled symmetric supercapacitors show good areal specific capacitances (1.95 and 1.49 F cm(-2)) in addition to high areal specific energies (168.64 and 113.57 mW h cm(-2), respectively). These results demonstrate that the integration of the LbL-assembled electroactive materials and porous cellulosic aerogel substrate can be a promising strategy to design high-efficiency green energy storage devices.