文献类型：期刊文献

英文题名：Synthesis of microspherical polyaniline/graphene composites and their application in supercapacitors

作者：Yu, Tao[1];Zhu, Pengfei[1];Xiong, Yachao[1];Chen, Hao[1];Kang, Shaohong[1];Luo, Hailan[1];Guan, Shiyou[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Mei Long Rd 130, Shanghai 200237, Peoples R China

年份：2016

卷号：222

起止页码：12

外文期刊名：ELECTROCHIMICA ACTA

收录：;EI(收录号：20164603024913);WOS:【SCI-EXPANDED(收录号:WOS:000392566200002)】；

基金：The authors are grateful for the financial support from National Natural Science Foundation of China (No. 21274043).

语种：英文

外文关键词：Spray-drying; Polyaniline; Graphene; Microsphere; Supercapacitors

摘要：Microspherical polyaniline/graphene (PANI/C-MS) composites are synthesized using sheet-like polyaniline/graphene oxide (PANI/GO) composites as raw materials via spray-drying and chemical reduction process, in which the granulated polyaniline (PANI) is in-situ grown on the surface of graphene oxide. For PANI/G-MS composites, PANI uniformly coats on the surface of graphene which can constitute a high conductive network to accelerate electronic transmission in the composites electrode for super capacitors. Moreover, PANI/G-MS composites form numerous channels among their spherical particles during random stacking of sheet-like PANI/GO composites via spray-drying process. Due to the special structure, the electrochemical capacitance of the as-synthesized PANI/G-MS composite reaches 596.2 and 447.5 Fg(-1) at a current density of 0.5 and 20 A g(-1), respectively, indicating superior rate capability. Additionally, after 1500 cycles at a current density of 2 A g-1, 83.7% of the initial capacitance is retained. (C) 2016 Elsevier Ltd. All rights reserved.