Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
818201 | Composites Part B: Engineering | 2013 | 17 Pages |
Abstract
Polyaniline/graphene nanocomposites (PANi/GR) were prepared via PANi covalent grafting from the surface of GR. The unique structure of hybrid nanosheets was formed with uniform PANi layer coating GR without phase separation appearing when the weight ratio of aniline-to-graphene was 1:1. The unique PANi/GR hybrid nanosheets as electrode material for supercapacitors have a specific capacitance as high as 922Â F/g at 10Â mV/s and still retain a specific capacitance of 106Â F/g at a high scan rate of 1Â V/s due to synergistic effect between PANi and GR. The capacitance retention was â¼90% after 1000 cycles, which is much better than that of pure PANi or other PANi nanocomposites. The enhanced capacitive performance of PANi/GR hybrid nanosheets makes them have potential application in developing high performance energy storage devices.
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Authors
Fei-Peng Du, Jing-Jing Wang, Chak-Yin Tang, Chi-Pong Tsui, Xiao-Lin Xie, Ka-Fu Yung,