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Electrochemical Synthesis of Functionalized Graphene/Polyaniline Composite Using Two Electrode Configuration for
Dongsheng Yu1, Jili Li1, Tiekun Jia1
1Henan Province International Joint Laboratory of Materials for Solar Energy Conversion and Lithium Sodium Based Battery & Henan Key Laboratory of Special Protective Materials, Material Science and Engineering School, Luoyang Institute of Science and Technology, Luoyang 471023, China.
Abstract:
An effective approach for the large-scale fabrication of conducting polyaniline (PANI) using in situ anodic electrochemical polymerization on nickel foam which had been coated in aryl diazonium salt (ADS)-modified graphene (ADS-G). In the present work, ADS-G was used as a high surface-area support material for the electrochemical polymerization of PANI. The electrochemical performances of the ADS-G/PANI composites exhibited better suitability as supercapacitor electrode materials than those of the PANI. The ADS-G/PANI composites achieved a specific capacitance of 528 F g-1, which was higher than that of PANI (266 F g-1) due to excellent electrode-electrolyte interaction and the synergistic effect of electrical conductivity between ADS-G and PANI in the composites. These findings suggest that the ADS-G/PANI composites are a suitable composite for potential supercapacitor applications.
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