Porous graphene-polyaniline nanoarrays composite with enhanced interface bonding and electrochemical performance

There are ever increasing interests in three dimensional (3D) graphene for the construction of wearable electrics and flexible energy storage devices. Herein, we report a 3D porous graphene supported polyaniline (PANI) nanoarrays composite with enhanced interface bonding and high load fraction of PA...

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Bibliographic Details
Published in:Composites science and technology 2018-01, Vol.154, p.76-84
Main Authors: Yu, Huitao, Xin, Guoxiang, Ge, Xin, Bulin, Chaoke, Li, Ruihong, Xing, Ruiguang, Zhang, Bangwen
Format: Article
Language:English
Subjects:
Benzenesulfonic acids
Carbon
Chemical bonds
Electrochemical analysis
Electrodes
Energy storage
Freestanding
Functionalization
Graphene
Polyaniline
Polyanilines
Porous graphene
Studies
Supercapacitors
Wearable computers
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Summary:There are ever increasing interests in three dimensional (3D) graphene for the construction of wearable electrics and flexible energy storage devices. Herein, we report a 3D porous graphene supported polyaniline (PANI) nanoarrays composite with enhanced interface bonding and high load fraction of PANI for supercapacitor application. We demonstrate that by utilizing benzenesulfonic acid functionalization followed by a pre-immersion treatment, surface chemistry and permeability of the porous graphene can be improved significantly, which favors the controllable growth of high-quality PANI nanoarrays. The resulting composite used as a freestanding electrode exhibits excellent electrochemical performance, hence a maximum specific capacitance of 752 F/g with retention of 90.8% over 10000 cycles was achieved.
ISSN:0266-3538
1879-1050
DOI:10.1016/j.compscitech.2017.11.010