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Aniline‐grafting graphene oxide/polyaniline composite prepared via interfacial polymerization with high capacitive performance
Author(s) -
Xu Zhaofen,
Wang Tongzhou,
Wang Liangying,
Xu Jingkun,
Liu Peipei,
Lan Xiaoqi,
Li Xuejing,
Ni Meng,
Jiang Qinglin,
Jiang Fengxing
Publication year - 2019
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4756
Subject(s) - polyaniline , materials science , supercapacitor , graphene , capacitance , composite number , conductive polymer , oxide , composite material , chemical engineering , polymerization , electrode , polymer , nanotechnology , chemistry , engineering , metallurgy
Summary Polyaniline (PANI), a low‐cost conducting polymer with an excellent specific capacitance and a high conductivity, is a promising organic material served for supercapacitor. However, it tends to curl and swell after constant charge and discharge, resulting in poor cycle stability. In this work, we employed the interfacial polymerization route to construct an aniline‐grafting graphene oxide/PANI (GO‐ANI/PANI) composite. The as‐prepared GO‐ANI/PANI composite shows a high specific capacitance (160.5 F g ‐1 ) at 0.5 A g ‐1 under the wide potential range from 0.0 to 1.0 V. Importantly, at a high current density (10 A g ‐1 ), the capacitance retains 86% after 3000 cycles due to the enhanced interaction between GO and PANI and good conductive network. It has been demonstrated that the GO‐ANI/PANI composite has a higher specific capacitance and better stability compared with GO/PANI obtained by common method. This study implies that the composite electrode could be a competitive candidate for high‐performance supercapacitor.