Hollow nanostructures of metal oxides as next generation electrode materials for supercapacitors
Autor: | Amreesh Chandra, Inderjeet Singh, Vikas Sharma |
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Rok vydání: | 2018 |
Předmět: |
Copper oxide
Materials science Science chemistry.chemical_element 02 engineering and technology 010402 general chemistry Electrochemistry 01 natural sciences Capacitance Article law.invention chemistry.chemical_compound law Supercapacitor Multidisciplinary Graphene 021001 nanoscience & nanotechnology Copper 0104 chemical sciences chemistry Chemical engineering Medicine Cyclic voltammetry 0210 nano-technology Faraday efficiency |
Zdroj: | Scientific Reports Scientific Reports, Vol 8, Iss 1, Pp 1-12 (2018) |
ISSN: | 2045-2322 |
Popis: | Hollow nanostructures of copper oxides help to stabilize appreciably higher electrochemical characteristics than their solid counter parts of various morphologies. The specific capacitance values, calculated using cyclic voltammetry (CV) and charge-discharge (CD) studies, are found to be much higher than the values reported in literature for copper oxide particles showing intriguing morphologies or even composites with trendy systems like CNTs, rGO, graphene, etc. The proposed cost-effective synthesis route makes these materials industrially viable for application in alternative energy storage devices. The improved electrochemical response can be attributed to effective access to the higher number of redox sites that become available on the surface, as well as in the cavity of the hollow particles. The ion transport channels also facilitate efficient de-intercalation, which results in the enhancement of cyclability and Coulombic efficiency. The charge storage mechanism in copper oxide structures is also proposed in the paper. |
Databáze: | OpenAIRE |
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