Microwave-assisted synthesis and electrochemical capacitance of polyaniline/multi-wall carbon nanotubes composite |
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| Authors: | Hongyu Mi Xiaogang Zhang Shuying An Xiangguo Ye Sudong Yang |
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| Affiliation: | aInstitute of Applied Chemistry, Xinjiang University, Urumqi 830046, PR China;bCollege Science of Xi’an Jiaotong University, Xi’an 710049, PR China;cCollege of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China |
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| Abstract: | Polyaniline/multi-wall carbon nanotubes composite (PANI/MWNTs) was rapidly synthesized by microwave-assisted polymerization. Transmission electron microscope (TEM) image revealed that this composite was a core–shell structure with PANI layers (50–70 nm). Electrochemical behavior of the composite was evaluated by cyclic voltammetry (CV) and galvanostatic charge–discharge tests with a two-electrode system. An enhanced specific capacitance of 322 F/g with a specific energy density of 22 W h/kg was about 12 times that of MWNTs. This composite also exhibited a good rate capability, retaining up to 87% of initial capacity at a current density of 5 mA/cm2. |
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| Keywords: | Polyaniline Multi-wall carbon nanotubes Microwave-assisted Supercapacitor |
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