文献类型：期刊文献

英文题名：Hierarchical PANI/NiCo-LDH Core-Shell Composite Networks on Carbon Cloth for High Performance Asymmetric Supercapacitor

作者：Ge, Xinjin[1];He, Ying[1,2];Plachy, Tomas[2];Kazantseva, Natalia[2];Saha, Petr[2];Cheng, Qilin[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Tomas Bata Univ Zlin, Ctr Polymer Syst, Nam Masaryka TG 5555, Zlin 76001, Czech Republic

年份：2019

卷号：9

期号：4

外文期刊名：NANOMATERIALS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000467768800043)】；

基金：This work was supported by the National Key R&D Program of China (2016YFE0131200), the National Natural Science Foundation of China (51702098), International Cooperation Project of Shanghai Municipal Science and Technology Committee (18520744400), and Research Program supported by the Ministry of Education, Youth, and Sports of the Czech Republic (LTACH17015).

语种：英文

外文关键词：polyaniline nanofibers; layered double hydroxides; core-shell structure; electrochemical performance; supercapacitor

摘要：In this work, a facile two-step strategy is adopted to construct hierarchical polyaniline/NiCo-layered double hydroxide (PANI/NiCo-LDH) core-shell composite nanofiber networks on carbon cloth (CC). Three-dimensional (3D) porous PANI nanofiber networks are firstly uniformly anchored on CC by in-situ oxidative polymerization, followed by growth of NiCo-LDH nanoflakes on the crosslinked PANI framework via electrochemical deposition. The morphology and electrochemical properties of PANI/NiCo-LDH composites are controlled by the deposition time of LDH. Benefiting from rapid electron transport and ion diffusion, the well-defined PANI/NiCo-LDH hierarchical composite with 200 s deposition of LDH delivers a large capacitance of 1845 F g(-1) at 0.5 A g(-1) and excellent cycling stability of 82% capacitance retention after 5000 cycles at a very high current density of 10.0 A g(-1). Furthermore, an asymmetric supercapacitor (ASC) assembled with PANI/NiCo-LDH as a positive electrode and activated carbon (AC) as a negative electrode exhibits a high capacitance of 147.2 F g(-1) in a potential range from 0 to 1.5 V and superior energy density of 46.0 Wh kg(-1) at a power density of 351.6 W kg(-1).