DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 김희탁 | - |
dc.contributor.author | Lee, Dong Wook | - |
dc.contributor.author | 이동욱 | - |
dc.date.accessioned | 2024-08-08T19:31:16Z | - |
dc.date.available | 2024-08-08T19:31:16Z | - |
dc.date.issued | 2024 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1099280&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/322061 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 생명화학공학과, 2024.2,[v, 74 p. :] | - |
dc.description.abstract | As the importance of durability issues for the commercialization of polymer electrolyte membrane fuel cell increases, not only the individual durability of materials such as catalysts, membranes, and ionomers but also the characterization of the interfaces they from and the understanding of degradation mechanisms become crucial. In this study, we focused on the platinum dissolution at the platinum catalyst interface in polymer electrolyte membrane fuel cell. By exploiting the differences in dissolution characteristics depending on the surface facets of platinum, the concept and effectiveness of a selective protective layer to protect vulnerable facets prone to dissolution were proposed and validated. Additionally, to observe the degradation phenomenon occurring at the interface between the ionomer and platinum, an electrode mimicking the ionomer/platinum interface was fabricated. The degradation behavior was investigated, and its impact on oxygen transport properties was demonstrated in a membrane electrode assembly level under the same degradation behaviors. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | 내구성▼a전기화학촉매▼a용출▼a활성▼a이오노머▼a산소 전달▼a고분자 전해질 연료전지 | - |
dc.subject | Durability▼aElectrocatalyst▼aDissolution▼aActivity▼aIonomer▼aOxygen transport▼aPolymer electrolyte membrane fuel cell | - |
dc.title | Interfacial engineering for enhancing durability of polymer electrolyte membrane fuel cell | - |
dc.title.alternative | 고분자 전해질 연료전지의 내구성 개선을 위한 계면 공학 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :생명화학공학과, | - |
dc.contributor.alternativeauthor | Kim, Hee-Tak | - |
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