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DC Field | Value | Language |
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dc.citation.endPage | 21946 | - |
dc.citation.number | 41 | - |
dc.citation.startPage | 21936 | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.volume | 5 | - |
dc.contributor.author | Jeon, In-Yup | - |
dc.contributor.author | Kweon, Do Hyung | - |
dc.contributor.author | Kim, Seong-Wook | - |
dc.contributor.author | Shin, Sun-Hee | - |
dc.contributor.author | Im, Yoon Kwang | - |
dc.contributor.author | Yu, Soo-Young | - |
dc.contributor.author | Ju, Myung-Jong | - |
dc.contributor.author | Baek, Jong-Beom | - |
dc.date.accessioned | 2023-12-21T21:38:21Z | - |
dc.date.available | 2023-12-21T21:38:21Z | - |
dc.date.created | 2017-11-15 | - |
dc.date.issued | 2017-11 | - |
dc.description.abstract | Platinum (Pt) nanoparticles were stably anchored on triazine-functionalized graphene nanoplatelets (TfGnPs), which were prepared by a two-step reaction starting from carboxylic acid-(CGnPs), acyl chloride-(AcGnPs) and amide-functionalized graphene nanoplatelets (AfGnPs). The resulting Pt nanoparticles on TfGnPs (Pt/TfGnPs) exhibited outstanding electrocatalytic activity with significantly enhanced stability compared with commercial Pt-based catalysts for the oxygen reduction reaction (ORR) in fuel cells (FCs) and the iodine reduction reaction (IRR) in dye-sensitized solar cells (DSSCs). For the ORR in FCs, the onset and half-wave potentials of Pt/TfGnPs under acidic conditions displayed greater positive shifts to 0.58 and 0.53 V, respectively, than those of the commercial Pt/C catalyst (0.57 and 0.52 V). For the IRR in DSSCs, Pt/TfGnPs displayed a reduced charge transfer resistance (R-ct) of 0.13 Omega cm(2) at the CE/electrolyte interface. This value was much lower than the Pt CE of 0.52 Omega cm(2). More importantly, Pt/TfGnPs exhibited profoundly improved electrochemical stability in both the ORR and IRR compared to the Pt-based catalysts. The combination of extraordinarily high electrocatalytic activity with stability could be attributed to the high specific surface area (963.0 m(2) g(-1)) and the triazine units of the TfGnPs, respectively, which provided more active sites and stably anchored the Pt nanoparticles. | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A, v.5, no.41, pp.21936 - 21946 | - |
dc.identifier.doi | 10.1039/c7ta06912j | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.scopusid | 2-s2.0-85032329480 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/22933 | - |
dc.identifier.url | http://pubs.rsc.org/en/Content/ArticleLanding/2017/TA/C7TA06912J#!divAbstract | - |
dc.identifier.wosid | 000413734800037 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Enhanced electrocatalytic performance of Pt nanoparticles on triazine-functionalized graphene nanoplatelets for both oxygen and iodine reduction reactions | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Energy & Fuels; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | SENSITIZED SOLAR-CELLS | - |
dc.subject.keywordPlus | NITROGEN-DOPED CARBON | - |
dc.subject.keywordPlus | MEMBRANE FUEL-CELL | - |
dc.subject.keywordPlus | PLATINUM NANOPARTICLES | - |
dc.subject.keywordPlus | COUNTER ELECTRODES | - |
dc.subject.keywordPlus | ACTIVATED CARBONS | - |
dc.subject.keywordPlus | ANODE CATALYST | - |
dc.subject.keywordPlus | SUPPORT | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | ELECTROLYTES | - |
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