Dendrite-Embedded Platinum-Nickel Multiframes as Highly Active and Durable Electrocatalyst toward the Oxygen Reduction Reaction
DC Field | Value | Language |
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dc.contributor.author | Kwon, Hyukbu | - |
dc.contributor.author | Kabiraz, Mrinal Kanti | - |
dc.contributor.author | Park, Jongsik | - |
dc.contributor.author | Oh, Aram | - |
dc.contributor.author | Baik, Hionsuck | - |
dc.contributor.author | Choi, Sang-Il | - |
dc.contributor.author | Lee, Kwangyeol | - |
dc.date.accessioned | 2021-09-02T12:30:11Z | - |
dc.date.available | 2021-09-02T12:30:11Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2018-05 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/76047 | - |
dc.description.abstract | Pt-based nanoframe catalysts have been explored extensively due to their superior activity toward the oxygen reduction reaction (ORR). Herein, we report the synthesis of Pt-Ni multiframes, which exhibit the unique structure of tightly fused multiple nanoframes and reinforced by an embedded dendrite. Rapid reduction and deposition of Ni atoms on Pt-Ni nanodendrites induce the alloying/ dealloying of Pt and Ni in the overall nanostructures. After chemical etching of Ni, the newly formed dendrite-embedded Pt-Ni multiframes show an electrochemically active surface area (ECSA) of 73.4 m(2) g(Pt)(-1) and a mass ORR activity of 1.51 A mg(Pt)(-1)at 0.93 V, which is 30-fold higher than that of the state-of-the-art Pt/C catalyst. We suggest that high ECSA and ORR performances of dendrite-embedded Pt-Ni multiframes/C can be attributed to the porous nanostructure and numerous active sites exposed on surface grain boundaries and high-indexed facets. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | PT-NI | - |
dc.subject | SURFACE-AREA | - |
dc.subject | PHASE SEGREGATION | - |
dc.subject | ALLOY CATALYSTS | - |
dc.subject | NANOFRAME | - |
dc.subject | NANOPARTICLES | - |
dc.subject | EFFICIENT | - |
dc.subject | NANOWIRES | - |
dc.subject | MODEL | - |
dc.title | Dendrite-Embedded Platinum-Nickel Multiframes as Highly Active and Durable Electrocatalyst toward the Oxygen Reduction Reaction | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Kwangyeol | - |
dc.identifier.doi | 10.1021/acs.nanolett.8b00270 | - |
dc.identifier.scopusid | 2-s2.0-85046648326 | - |
dc.identifier.wosid | 000432093200027 | - |
dc.identifier.bibliographicCitation | NANO LETTERS, v.18, no.5, pp.2930 - 2936 | - |
dc.relation.isPartOf | NANO LETTERS | - |
dc.citation.title | NANO LETTERS | - |
dc.citation.volume | 18 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 2930 | - |
dc.citation.endPage | 2936 | - |
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 | PT-NI | - |
dc.subject.keywordPlus | SURFACE-AREA | - |
dc.subject.keywordPlus | PHASE SEGREGATION | - |
dc.subject.keywordPlus | ALLOY CATALYSTS | - |
dc.subject.keywordPlus | NANOFRAME | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordAuthor | Platinum | - |
dc.subject.keywordAuthor | multiframes | - |
dc.subject.keywordAuthor | porous nanostructure | - |
dc.subject.keywordAuthor | electrocatalyst | - |
dc.subject.keywordAuthor | oxygen reduction reaction | - |
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