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Kwon, Youngkook
Electrochemistry Lab for Energy and Environment
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dc.citation.startPage 105363 -
dc.citation.title NANO ENERGY -
dc.citation.volume 79 - Lee, Yeongdae - Ahn, Jang Hyuk - Park, Hee-Young - Jung, Jeawoo - Jeon, Yuju - Lee, Dong-Gyu - Kim, Min-Ho - Lee, Eunryeol - Kim, Chanseok - Kwon, Youngkook - Lee, Hyun-Wook - Jang, Jong Hyun - Lee, Jun Hee - Song, Hyun-Kon - 2023-12-21T16:36:51Z - 2023-12-21T16:36:51Z - 2020-11-04 - 2021-01 -
dc.description.abstract It is demonstrated that the electroactivity of the oxygen reduction reaction (ORR) of Pt depends on the structure of a support. Highly conductive two-dimensional titanium carbide (Ti3C2) was selected as the support for Pt because of the expected strong metal-support interaction (SMSI) between Pt and Ti. To control the edge-to-basal ratio, the number of Ti3C2 layers was modulated by exfoliation. Pt nanoparticles (4 nm) were loaded on three different Ti3C2 supports including multi-, few-, and mono-layered Ti3C2 (22L-, 4L-, and 1L-Ti3C2, respectively). The edge-to-basal ratio of layered Ti3C2 increased as the number of layers increased. The edge-dominant support (22L-Ti3C2) donated more electrons to Pt than the basal-dominant supports (4L-Ti3C2 and 1L-Ti3C2). As a result, electron-rich Pt with less d-band vacancies (e.g., Pt/22L-Ti3C2) showed higher ORR activity. In addition, the electron transfer from the support to Pt inducing the strong interaction between Pt and Ti improved the durability of the ORR electroactivity of Pt. -
dc.identifier.bibliographicCitation NANO ENERGY, v.79, pp.105363 -
dc.identifier.doi 10.1016/j.nanoen.2020.105363 -
dc.identifier.issn 2211-2855 -
dc.identifier.scopusid 2-s2.0-85091643607 -
dc.identifier.uri -
dc.identifier.url -
dc.identifier.wosid 000620324800005 -
dc.language 영어 -
dc.publisher ELSEVIER -
dc.title Support structure-catalyst electroactivity relation for oxygen reduction reaction on platinum supported by two-dimensional titanium carbide -
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.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor Structure-activity relation -
dc.subject.keywordAuthor Metal-support interaction -
dc.subject.keywordAuthor Oxygen reduction reaction -
dc.subject.keywordAuthor Two-dimensional titanium carbide -
dc.subject.keywordAuthor Electrocatalyst -


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