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- Publisher Website: 10.1039/c9nr10473a
- Scopus: eid_2-s2.0-85081090051
- PMID: 32101234
- WOS: WOS:000519254300039
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Article: Mechanistic insight into bimetallic CoNi-MOF arrays with enhanced performance for supercapacitors
Title | Mechanistic insight into bimetallic CoNi-MOF arrays with enhanced performance for supercapacitors |
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Authors | |
Issue Date | 2020 |
Citation | Nanoscale, 2020, v. 12, n. 9, p. 5669-5677 How to Cite? |
Abstract | Engineering multicomponent electroactive materials is an effective strategy to improve electrochemical performance by adjusting the atomic and electronic structure. In this work, we directly synthesize oriented bimetallic CoNi-MOF nanosheets on CFP (carbon fiber paper). The CoNi-MOF/CFP shows high specific capacitance, outstanding rate capability and long-term cycling stability compared to a monometallic Ni-MOF or Co-MOF. By adjusting the Co/Ni molar ratio, CoNi23/CFP (Co-Ni = 2-3) displays the highest specific capacitance (2033 F g-1 at 1 A g-1). The introduction of Co into the Ni-MOF matrix shortens Co/Ni-centered bond distances, resulting in improved bond strength, facilitating the charge transfer and increasing the electrical conductivity of the CoNi-MOF, which were proved by X-ray absorption fine structure (XAFS) spectroscopy, high angle annular dark field (HAADF) imaging, and electrochemical impedance spectroscopy (EIS). Our study demonstrates the origin of performance improvements and, therefore, may provide a feasible scheme to unlock high-performance MOF electrode materials. |
Persistent Identifier | http://hdl.handle.net/10722/335849 |
ISSN | 2023 Impact Factor: 5.8 2023 SCImago Journal Rankings: 1.416 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chu, Xianyu | - |
dc.contributor.author | Meng, Fanling | - |
dc.contributor.author | Deng, Ting | - |
dc.contributor.author | Lu, Yue | - |
dc.contributor.author | Bondarchuk, Oleksandr | - |
dc.contributor.author | Sui, Manling | - |
dc.contributor.author | Feng, Ming | - |
dc.contributor.author | Li, Haibo | - |
dc.contributor.author | Zhang, Wei | - |
dc.date.accessioned | 2023-12-28T08:49:13Z | - |
dc.date.available | 2023-12-28T08:49:13Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Nanoscale, 2020, v. 12, n. 9, p. 5669-5677 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | http://hdl.handle.net/10722/335849 | - |
dc.description.abstract | Engineering multicomponent electroactive materials is an effective strategy to improve electrochemical performance by adjusting the atomic and electronic structure. In this work, we directly synthesize oriented bimetallic CoNi-MOF nanosheets on CFP (carbon fiber paper). The CoNi-MOF/CFP shows high specific capacitance, outstanding rate capability and long-term cycling stability compared to a monometallic Ni-MOF or Co-MOF. By adjusting the Co/Ni molar ratio, CoNi23/CFP (Co-Ni = 2-3) displays the highest specific capacitance (2033 F g-1 at 1 A g-1). The introduction of Co into the Ni-MOF matrix shortens Co/Ni-centered bond distances, resulting in improved bond strength, facilitating the charge transfer and increasing the electrical conductivity of the CoNi-MOF, which were proved by X-ray absorption fine structure (XAFS) spectroscopy, high angle annular dark field (HAADF) imaging, and electrochemical impedance spectroscopy (EIS). Our study demonstrates the origin of performance improvements and, therefore, may provide a feasible scheme to unlock high-performance MOF electrode materials. | - |
dc.language | eng | - |
dc.relation.ispartof | Nanoscale | - |
dc.title | Mechanistic insight into bimetallic CoNi-MOF arrays with enhanced performance for supercapacitors | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1039/c9nr10473a | - |
dc.identifier.pmid | 32101234 | - |
dc.identifier.scopus | eid_2-s2.0-85081090051 | - |
dc.identifier.volume | 12 | - |
dc.identifier.issue | 9 | - |
dc.identifier.spage | 5669 | - |
dc.identifier.epage | 5677 | - |
dc.identifier.eissn | 2040-3372 | - |
dc.identifier.isi | WOS:000519254300039 | - |