Nanoporous MnOx thin-film electrodes synthesized by electrochemical lithiation/delithiation for supercapacitors |
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| Authors: | Hui XiaMan On Lai Li Lu |
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| Affiliation: | Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore |
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| Abstract: | Nanoporous MnOx thin-film electrodes are synthesized using a combination of pulsed laser deposition (PLD) and electrochemical lithiation/delithiation methods. A dense Mn3O4 thin-film deposited by PLD can transform into a nanoporous MnOx thin-film after electrochemical lithiation/delithiation. A nanoporous MnOx thin-film electrode exhibits significantly improved supercapacitive performance compared with an as-deposited Mn3O4 thin-film electrode. A MnOx thin-film finally transforms into a MnO2 thin-film through an electrochemical oxidation process during continuous cyclic voltammetry scanning. |
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| Keywords: | Supercapacitor Manganese oxide Nanoporous Pulsed laser deposition Cyclic voltammetry |
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