In situ synthesis of SWNTs@MnO 2 /polypyrrole hybrid film as binder-free supercapacitor electrode
| Autor: | Kun Liang, Wencheng Hu, Bingqing Wei, Xianzhong Tang, Zeyuan Cao, Taoli Gu |
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| Rok vydání: | 2014 |
| Předmět: |
Supercapacitor
Materials science Renewable Energy Sustainability and the Environment 02 engineering and technology Carbon nanotube Conductivity 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry Polypyrrole 01 natural sciences 7. Clean energy Energy storage 0104 chemical sciences law.invention chemistry.chemical_compound chemistry Chemical engineering law Electrode General Materials Science Electrical and Electronic Engineering Composite material 0210 nano-technology Power density |
| Zdroj: | Nano Energy. 9:245-251 |
| ISSN: | 2211-2855 |
| DOI: | 10.1016/j.nanoen.2014.07.017 |
| Popis: | In this study, a flexible hybrid film based on single-wall carbon nanotubes (SWNTs) was fabricated. The SWNTs@MnO 2 /Polypyrrole (PPy) film was used as a supercapacitor electrode without binders to achieve high capacitance. The binder-free electrode with SWNT and PPy layers improved the conductivity of the electrode materials, as well as the ion diffusion rate and charge-transfer resistance, thus achieving excellent electrochemical performance compared with SWNTs@MnO 2 electrodes. The specific capacity was 351 F g −1 based on the total weight of the electrodes with energy density of 39.7 Wh kg −1 and power density of 10 kW kg −1 . Our study could provide a novel and facile strategy for the development of high-performance energy storage devices. |
| Databáze: | OpenAIRE |
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