Topotactic Transformations in an Icosahedral Nanocrystal to Form Efficient Water-Splitting Catalysts
DC Field | Value | Language |
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dc.contributor.author | Oh, Aram | - |
dc.contributor.author | Kim, Ho Young | - |
dc.contributor.author | Baik, Hionsuck | - |
dc.contributor.author | Kim, Byeongyoon | - |
dc.contributor.author | Chaudhari, Nitin Kaduba | - |
dc.contributor.author | Joo, Sang Hoon | - |
dc.contributor.author | Lee, Kwangyeol | - |
dc.date.accessioned | 2021-09-01T21:36:25Z | - |
dc.date.available | 2021-09-01T21:36:25Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2019-01-04 | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/68325 | - |
dc.description.abstract | Designing high-performance, precious-metal-based, and economic electrocatalysts remains an important challenge in proton exchange membrane (PEM) electrolyzers. Here, a highly active and durable bifunctional electrocatalyst for PEM electrolyzers based on a rattle-like catalyst comprising a Ni/Ru-doped Pt core and a Pt/Ni-doped RuO2 frame shell, which is topotactically transformed from an icosahedral Pt/Ni/Ru nanocrystal, is reported. The RuO2-based frame shell with its highly reactive surfaces leads to a very high activity for the oxygen evolution reaction (OER) in acidic media, reaching a current density of 10 mA cm(-2) at an overpotential of 239 mV, which surpasses those of previously reported catalysts. The Pt dopant in the RuO2 shell enables a sustained OER activity even after a 2000 cycles of an accelerated durability test. The Pt-based core catalyzes the hydrogen evolution reaction with an excellent mass activity. A two-electrode cell employing Pt/RuO2 as the electrode catalyst demonstrates very high activity and durability, outperforming the previously reported cell performances. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | OXYGEN EVOLUTION REACTION | - |
dc.subject | PHASE SEGREGATION | - |
dc.subject | IR | - |
dc.subject | NANOPARTICLES | - |
dc.subject | ELECTROCATALYSTS | - |
dc.subject | NANOFRAME | - |
dc.subject | RU | - |
dc.subject | ELECTROCHEMISTRY | - |
dc.subject | NANOSTRUCTURES | - |
dc.subject | DURABILITY | - |
dc.title | Topotactic Transformations in an Icosahedral Nanocrystal to Form Efficient Water-Splitting Catalysts | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Byeongyoon | - |
dc.contributor.affiliatedAuthor | Lee, Kwangyeol | - |
dc.identifier.doi | 10.1002/adma.201805546 | - |
dc.identifier.scopusid | 2-s2.0-85055704477 | - |
dc.identifier.wosid | 000454786200002 | - |
dc.identifier.bibliographicCitation | ADVANCED MATERIALS, v.31, no.1 | - |
dc.relation.isPartOf | ADVANCED MATERIALS | - |
dc.citation.title | ADVANCED MATERIALS | - |
dc.citation.volume | 31 | - |
dc.citation.number | 1 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | OXYGEN EVOLUTION REACTION | - |
dc.subject.keywordPlus | PHASE SEGREGATION | - |
dc.subject.keywordPlus | IR | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | NANOFRAME | - |
dc.subject.keywordPlus | RU | - |
dc.subject.keywordPlus | ELECTROCHEMISTRY | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | DURABILITY | - |
dc.subject.keywordAuthor | bifunctional electrocatalysis | - |
dc.subject.keywordAuthor | icosahedral nanocrystals | - |
dc.subject.keywordAuthor | nanoframes | - |
dc.subject.keywordAuthor | platinum-nickel-ruthenium ternary alloys | - |
dc.subject.keywordAuthor | water splitting | - |
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