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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 25 | - |
dc.citation.startPage | 17 | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 42 | - |
dc.contributor.author | Jin, Haneul | - |
dc.contributor.author | Hong, Yongju | - |
dc.contributor.author | Yoon, Jisun | - |
dc.contributor.author | Oh, Aram | - |
dc.contributor.author | Chaudhari, Nitin K. | - |
dc.contributor.author | Baik, Hionsuck | - |
dc.contributor.author | Joo, Sang Hoon | - |
dc.contributor.author | Lee, Kwangyeol | - |
dc.date.accessioned | 2023-12-21T21:36:36Z | - |
dc.date.available | 2023-12-21T21:36:36Z | - |
dc.date.created | 2017-12-04 | - |
dc.date.issued | 2017-12 | - |
dc.description.abstract | Mixed metal alloy nanoframeworks have shown a great promise as electrocatalysts in water electrolyzers and fuel cells. Although a limited number of mixed metal alloy nanoframeworks have been synthesized through phase segregation of alloy phases and removal of a component, there remains a strong need for a straightforward and facile synthesis route to this important nanostructure. A wide avenue for nanoframework structures can be opened with a fail-proof method for edge-coating shape-controlled template nanoparticles. Herein, we demonstrate that lanthanide metal chlorides can selectively passivate facets of a Ni nanotemplate, leaving the edges for the growth of a secondary metal (M = Ir, Pt). The edge-deposited metal can be further in situ mixed with the underlying Ni phase to afford rhombic dodecahedral nanoframes of binary alloy phases, namely, IrNi (IrNi-RF) and PtNi (PtNi-RF). IrNi-RF showed excellent electrocatalytic activity for the oxygen evolution reaction (OER) in an acidic electrolyte, requiring and overpotential of only 313.6 mV at 10 mA cm(-2). Furthermore, even after 5000 potential cycles in the OER, IrNi-RF underwent little performance loss with an overpotential of 329.3 mV at 10 mA cm(-2), demonstrating excellent catalytic stability. The presence of highly active grain boundaries, agglomeration-free frame structures, as well as the presence of IrNi/IrOx interface might be responsible for the excellent electrocatalytic activity and stability. | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.42, pp.17 - 25 | - |
dc.identifier.doi | 10.1016/j.nanoen.2017.10.033 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.scopusid | 2-s2.0-85032876996 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23023 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S2211285517306377 | - |
dc.identifier.wosid | 000418344200003 | - |
dc.language | 영어 | - |
dc.publisher | Elsevier BV | - |
dc.title | Lanthanide metal-assisted synthesis of rhombic dodecahedral MNi (M = Ir and Pt) nanoframes toward efficient oxygen evolution catalysis | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Water electrolyzer | - |
dc.subject.keywordAuthor | Iridium | - |
dc.subject.keywordAuthor | Catalysis | - |
dc.subject.keywordAuthor | Nanoframe | - |
dc.subject.keywordAuthor | Grain boundary | - |
dc.subject.keywordPlus | GOLD NANOFRAMES | - |
dc.subject.keywordPlus | BIMETALLIC NANOPARTICLES | - |
dc.subject.keywordPlus | OPTICAL-PROPERTIES | - |
dc.subject.keywordPlus | PHASE SEGREGATION | - |
dc.subject.keywordPlus | CUBIC NANOFRAMES | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | NI | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | DURABILITY | - |
dc.subject.keywordPlus | NANOCAGES | - |
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