Journal
LANGMUIR
Volume 30, Issue 18, Pages 5306-5313Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la404765z
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Funding
- SRFDP [20110075110009]
- 111 Project [111-2-04]
- Innovation Funds for Ph.D. Students of Donghua University [12D10630]
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We report the synthesis of reduced graphene oxide (RGO) sheet wrapped polyaniline (PANI) nanowire arrays grown on nitrogen-doped carbon fiber cloth (eCFC). The RGO coating layer is important to accommodate volume change and mechanical deformation of the coated PANI nanowires arrays during the long-term charge/discharge processes. The resulting hierarchical symmetric supercapacitor based on RGO/PANI/eCFC composites shows an enhanced capacitive behavior with a maximum energy density of 25.4 Wh kg(-1), a maximum power density of 92.2 kW kg(-1) and a specific capacitance of 1145 F g(-1), which is higher than that of PANI/eCFC (1050 F g(-1)) and GO/PANI/eCFC (940 F g(-1)). Moreover, the assembled supercapacitor exhibits excellent charge/discharge rates and a good cycling stability, retaining over 94% of its initial capacitance after 5000 cycles.
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