Substrate Effect of Platinum-Decorated Carbon on Enhanced Hydrogen Oxidation in PEMFC
DC Field | Value | Language |
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dc.contributor.author | Kim, Taeyoon | - |
dc.contributor.author | Kwon, Yongju | - |
dc.contributor.author | Kwon, Soonchul | - |
dc.contributor.author | Seo, Jeong Gil | - |
dc.date.accessioned | 2021-08-03T02:54:34Z | - |
dc.date.available | 2021-08-03T02:54:34Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2020-10 | - |
dc.identifier.issn | 2470-1343 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/32745 | - |
dc.description.abstract | Environmentally sustainable fuel cells with high efficiency have attracted much attention as a promising approach to resolving future energy problems. However, some obstacles must be overcome, such as corrosion, water control, and long-term degradation. Herein, we investigated the improved electrochemical performance and hydrogen oxidation reaction (HOR) mechanism of platinum loaded on carbon nanotube (Pt/CNT) catalyst by conducting experimental and theoretical studies. The Pt/CNT catalyst had a larger active area than the Pt/C (platinum loaded on carbon black) catalyst and also exhibited improved performance due to its long-term stability. In addition, the charge-transfer resistance of Pt/CNT (61.2 Omega cm(2)) is much smaller than that of Pt/C (90.2 Omega cm(2)), indicating that the CNT support offers good electron transfer. To further understand the hydrogen dissociation mechanisms of Pt/CNT and Pt/C, we investigated the adsorption characteristics and electron transfer of the catalysts with optimized geometry using the density functional theory (DFT). Pt/CNT exhibited higher adsorption energy and electron transfer than Pt/C, which leads to improved HOR. The integrated experimental and theoretical study conducted here suggests that Pt/CNT is a promising candidate for maintaining the performance of cathode catalysts in the polymer electrolyte membrane fuel cell. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Substrate Effect of Platinum-Decorated Carbon on Enhanced Hydrogen Oxidation in PEMFC | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Seo, Jeong Gil | - |
dc.identifier.doi | 10.1021/acsomega.0c04131 | - |
dc.identifier.scopusid | 2-s2.0-85094559740 | - |
dc.identifier.wosid | 000584420100060 | - |
dc.identifier.bibliographicCitation | ACS OMEGA, v.5, no.41, pp.26902 - 26907 | - |
dc.relation.isPartOf | ACS OMEGA | - |
dc.citation.title | ACS OMEGA | - |
dc.citation.volume | 5 | - |
dc.citation.number | 41 | - |
dc.citation.startPage | 26902 | - |
dc.citation.endPage | 26907 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | MEMBRANE FUEL-CELLS | - |
dc.subject.keywordPlus | DENSITY-FUNCTIONAL THEORY | - |
dc.subject.keywordPlus | TUNGSTEN CARBIDE | - |
dc.subject.keywordPlus | NANOTUBES | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | METHANOL | - |
dc.subject.keywordPlus | SUPPORT | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsomega.0c04131 | - |
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