연료전지 촉매층 내 촉매활성도에 대한 탄소지지 백금 촉매의 기하학적 비등방성 효과에 관한 연구
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 신승호 | - |
dc.contributor.author | 김아름 | - |
dc.contributor.author | 정혜미 | - |
dc.contributor.author | 엄석기 | - |
dc.date.accessioned | 2022-07-16T02:35:21Z | - |
dc.date.available | 2022-07-16T02:35:21Z | - |
dc.date.created | 2021-05-13 | - |
dc.date.issued | 2014-10 | - |
dc.identifier.issn | 1225-9071 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/158907 | - |
dc.description.abstract | Transport phenomena of reactant and product are directly linked to intrinsic inhomogeneous random configurations of catalyst layer (CL) that consist of ionomer, carbon-supported catalyst (Pt/C), and pores. Hence, electrochemically active surface area (ECSA) of Pt/C is dominated by geometrical morphology of mass transport path. Undoubtedly these ECSAs are key factor of total fuel cell efficiency. In this study, non-deterministic micro-scale CLs were randomly generated by Monte Carlo method and implemented with the percolation process. To ensure valid inference about Pt/C catalyst utilization, 600 samples were chosen as the number of necessary samples with 95% confidence level. Statistic results of 600 samples generated under particular condition (20vol% Pt/C, 30vol% ionomer, 50vol% pore, and 20nm particle diameter) reveal only 18.2%~81.0% of Pt/C can construct ECSAs with mean value of 53.8%. This study indicates that the catalyst utilization in fuel cell CLs cannot be identical notwithstanding the same design condition. | - |
dc.language | 한국어 | - |
dc.language.iso | ko | - |
dc.publisher | 한국정밀공학회 | - |
dc.title | 연료전지 촉매층 내 촉매활성도에 대한 탄소지지 백금 촉매의 기하학적 비등방성 효과에 관한 연구 | - |
dc.title.alternative | Geometrically Inhomogeneous Random Configuration Effects of Pt/C Catalysts on Catalyst Utilization in PEM Fuel Cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | 엄석기 | - |
dc.identifier.doi | 10.7736/KSPE.2014.31.10.955 | - |
dc.identifier.bibliographicCitation | 한국정밀공학회지, v.31, no.10, pp.955 - 965 | - |
dc.relation.isPartOf | 한국정밀공학회지 | - |
dc.citation.title | 한국정밀공학회지 | - |
dc.citation.volume | 31 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 955 | - |
dc.citation.endPage | 965 | - |
dc.type.rims | ART | - |
dc.identifier.kciid | ART001916247 | - |
dc.description.journalClass | 2 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordAuthor | Polymer electrolyte membrane fuel cell (PEMFC) | - |
dc.subject.keywordAuthor | Cathode catalyst layer (환원극 촉매) | - |
dc.subject.keywordAuthor | Transport phenomena (전달현상) | - |
dc.subject.keywordAuthor | Percolation model (스미기 모델) | - |
dc.subject.keywordAuthor | Electrochemically active surface area (전기화학적 활성표면) | - |
dc.identifier.url | https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE02481567&language=ko_KR | - |
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