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DC Field | Value | Language |
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dc.citation.endPage | 5353 | - |
dc.citation.number | 38 | - |
dc.citation.startPage | 5347 | - |
dc.citation.title | SMALL | - |
dc.citation.volume | 12 | - |
dc.contributor.author | Kim, Ho Young | - |
dc.contributor.author | Cho, Seonghun | - |
dc.contributor.author | Sa, Young Jin | - |
dc.contributor.author | Hwang, Sun Mi | - |
dc.contributor.author | Park, Gu-Gon | - |
dc.contributor.author | Shin, Tae Joo | - |
dc.contributor.author | Jeong, Hu Young | - |
dc.contributor.author | Yim, SD | - |
dc.contributor.author | Joo, Sang Hoon | - |
dc.date.accessioned | 2023-12-21T23:11:08Z | - |
dc.date.available | 2023-12-21T23:11:08Z | - |
dc.date.created | 2016-08-29 | - |
dc.date.issued | 2016-10 | - |
dc.description.abstract | Developing highly active and stable cathode catalysts is of pivotal importance for proton exchange membrane fuel cells (PEMFCs). While carbon-supported nanostructured Pt-based catalysts have so far been the most active cathode catalysts, their durability and single-cell performance are yet to be improved. Herein, self-supported mesostructured Pt-based bimetallic (Meso-PtM; M = Ni, Fe, Co, Cu) nanospheres containing an intermetallic phase are reported, which can combine the beneficial effects of transition metals (M), an intermetallic phase, a 3D interconnected framework, and a mesoporous structure. Meso-PtM nanospheres show enhanced oxygen reduction reaction (ORR) activity, compared to Pt black and Pt/C catalysts. Notably, Meso-PtNi containing an intermetallic phase exhibits ultrahigh stability, showing enhanced ORR activity even after 50 000 potential cycles, whereas Pt black and Pt/C undergo dramatic degradation. Importantly, Meso-PtNi with an intermetallic phase also demonstrated superior activity and durability when used in a PEMFC single-cell, with record-high initial mass and specific activities. | - |
dc.identifier.bibliographicCitation | SMALL, v.12, no.38, pp.5347 - 5353 | - |
dc.identifier.doi | 10.1002/smll.201601825 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.scopusid | 2-s2.0-84990217356 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/20587 | - |
dc.identifier.url | http://onlinelibrary.wiley.com/doi/10.1002/smll.201601825/abstract | - |
dc.identifier.wosid | 000386100900016 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Self-Supported Mesostructured Pt-Based Bimetallic Nanospheres Containing an Intermetallic Phase as Ultrastable Oxygen Reduction Electrocatalysts | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | durability | - |
dc.subject.keywordAuthor | electrocatalysts | - |
dc.subject.keywordAuthor | fuel cells | - |
dc.subject.keywordAuthor | intermetallic | - |
dc.subject.keywordAuthor | platinum | - |
dc.subject.keywordPlus | FUEL-CELLS | - |
dc.subject.keywordPlus | ALLOY NANOPARTICLES | - |
dc.subject.keywordPlus | FEPT NANOPARTICLES | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | METAL | - |
dc.subject.keywordPlus | SEGREGATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CHALLENGES | - |
dc.subject.keywordPlus | CATALYSIS | - |
dc.subject.keywordPlus | SILICA | - |
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