Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Lee, Damin | - |
dc.contributor.author | Kim, Dong Hwan | - |
dc.contributor.author | Roh, Jong Wook | - |
dc.contributor.author | Kristanto, Imanuel | - |
dc.contributor.author | Kwak, Sang Kyu | - |
dc.contributor.author | Kim, Jeongmin | - |
dc.date.accessioned | 2024-09-04T08:40:15Z | - |
dc.date.available | 2024-09-04T08:40:15Z | - |
dc.date.created | 2024-06-18 | - |
dc.date.issued | 2024-09 | - |
dc.identifier.issn | 2214-9937 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/56844 | - |
dc.description.abstract | The increasing usage of high-performance equipment necessitates the exploration of new energy storage solutions. Supercapacitors offer significant advantages over secondary batteries, including longer lifespan, faster charge/discharge rates, higher power density, and greater reliability. Three-dimensional porous NiCu(CO3)(OH)2 nanowires were directly synthesized on Ni foam using a binder-free hydrothermal method as positive electrodes in high-performance supercapacitors. The unique nanowire structure of NiCu(CO3)(OH)2 plays a pivotal role in enhancing electrical performance by providing substantial surface area, improving electrode/electrolyte contact, and shortening ion diffusion paths. The use of Ni- and Cu-based binary transition metal electrodes contributes to high specific capacitance, rapid charge-discharge rates, and excellent cycling stability, collectively resulting in the development of high-capacity supercapacitors. Furthermore, density functional theory calculations were employed to elucidate the electrode formation energy based on the Ni/Cu ratio, assessing the structural stability of electrodes and offering insights for future energy storage device development. The optimized NiCu(CO3)(OH)2 nanowire compound exhibited an outstanding maximum specific capacity of 211.1 mAh g−1 at 3 A g−1. Furthermore, an asymmetric supercapacitor was constructed using the NiCu(CO3)(OH)2 composite as the positive electrode and graphene as the negative electrode. The resulting asymmetric supercapacitors demonstrate a remarkable energy density of 26.7 W h kg−1 at a power density of 2534 W kg−1, along with exceptional cycling stability, retaining 91.3% of its capacity after 5000 cycles. Consequently, the asymmetric supercapacitors incorporating NiCu(CO3)(OH)2 exhibit superior electrical properties compared to most previously reported Ni- and Cu-based asymmetric supercapacitors. © 2024 Elsevier B.V. | - |
dc.language | English | - |
dc.publisher | Elsevier | - |
dc.title | Fabrication and electrochemical performance of Ni-Cu carbonate/ hydroxide-based electrodes for high-performance supercapacitors | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.susmat.2024.e01014 | - |
dc.identifier.wosid | 001259100300001 | - |
dc.identifier.scopusid | 2-s2.0-85196287383 | - |
dc.identifier.bibliographicCitation | Sustainable Materials and Technologies, v.41 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordAuthor | Pseudocapacitors | - |
dc.subject.keywordAuthor | Nickel‑copper carbonate hydroxide | - |
dc.subject.keywordAuthor | Nanowire | - |
dc.subject.keywordAuthor | Hydrothermal method | - |
dc.subject.keywordAuthor | Supercapacitors | - |
dc.subject.keywordPlus | ASYMMETRIC SUPERCAPACITORS | - |
dc.subject.keywordPlus | CUCO2O4 NANOSHEETS | - |
dc.subject.keywordPlus | BINARY OXIDES | - |
dc.subject.keywordPlus | NICKEL | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | CAPACITY | - |
dc.citation.title | Sustainable Materials and Technologies | - |
dc.citation.volume | 41 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics; Energy & Fuels; Materials Science | - |
dc.relation.journalWebOfScienceCategory | Green & Sustainable Science & Technology; Energy & Fuels; Materials Science, Multidisciplinary | - |
dc.type.docType | Article | - |
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