Anode electrodeposition of 3D mesoporous Fe2O3 nanosheets on carbon fabric for flexible solid-state asymmetric supercapacitor |
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| Authors: | Peng Zhao Ni Wang Wencheng Hu Sridhar Komarneni |
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| Affiliation: | 1. Center for Applied Chemistry, University of Electronic Science & Technology of China, Chengdu, 610054, China;2. Materials Research Institute and Department of Ecosystem Science and Management, 204 Energy and the Environment Laboratory, The Pennsylvania State University, University Park, PA, 16802, USA |
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| Abstract: | Novel nanostructured Fe2O3 with a network of 3D mesoporous nanosheets was synthesized by depositing on carbon fabric (Fe2O3@CF) for use as an anode using a potentially low-cost electrodeposition technique. The electrode with freestanding binder-free Fe2O3@CF of high surface area displayed an exceptional specific capacitance of 394.2?F?g?1. Moreover, a flexible solid-state asymmetric supercapacitor (ASC) was fabricated with a negative electrode based on Fe2O3@CF and a positive electrode based on MnO2@CF in the presence of PVA-LiCl as gel electrolyte. The above ASC exhibited a high operating potential up to 1.8?V, a favorable specific capacitance of 93.5?F?g?1 (2.92?F?cm?3), long-term stability (91.3% retention of initial value over 5000 cycles), and remarkable mechanical stability and flexibility, suggesting its potential application for wearable electronics. |
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| Keywords: | Mesoporous nanosheets Excellent electrochemical performance Flexible solid-state ASC |
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