DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Dong-Hyun | ko |
dc.contributor.author | Jo, Wonhee | ko |
dc.contributor.author | Yuk, Seongmin | ko |
dc.contributor.author | Choi, Jaeho | ko |
dc.contributor.author | Choi, Sungyu | ko |
dc.contributor.author | Doo, gisu | ko |
dc.contributor.author | Lee, Dong-Wook | ko |
dc.contributor.author | Kim, Hee-Tak | ko |
dc.date.accessioned | 2018-03-21T02:23:43Z | - |
dc.date.available | 2018-03-21T02:23:43Z | - |
dc.date.created | 2018-02-28 | - |
dc.date.created | 2018-02-28 | - |
dc.date.issued | 2018-01 | - |
dc.identifier.citation | ACS APPLIED MATERIALS & INTERFACES, v.10, no.5, pp.4682 - 4688 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | http://hdl.handle.net/10203/240635 | - |
dc.description.abstract | In this study, we present a novel catalyst layer (CL) with in-plane flow channels to enhance the mass transports in polymer electrolyte membrane fuel cells. The CL with in-plane channels on its surface is fabricated by coating a CL slurry onto a surface-treated substrate with the inverse line pattern and transferring the dried CL from the substrate to a membrane. The membrane electrode assembly with the in-plane channel-patterned CL has superior power performances in high current densities compared with an unpatterned, flat CL, demonstrating a significant enhancement of the mass-transport property by the in-plane channels carved in the CL. The performance gain is more pronounced when the channel direction is perpendicular to the flow field direction, indicating that the in-plane channels increase the utilization of the CL under the rib area. An oxygen-transport resistance analysis shows that both molecular and Knudsen diffusion can be facilitated with the introduction of the in-plane channels. The direct CL patterning technique provides a platform for the fabrication of advanced CL structures with a high structural fidelity and design flexibility and a rational guideline for designing high-performance CLs. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | OXYGEN REDUCTION REACTION | - |
dc.subject | INHOMOGENEOUS COMPRESSION | - |
dc.subject | SOFT LITHOGRAPHY | - |
dc.subject | CURRENT-DENSITY | - |
dc.subject | POWER-SYSTEM | - |
dc.subject | PEMFC | - |
dc.subject | ELECTROCATALYSTS | - |
dc.subject | PERFORMANCE | - |
dc.subject | RESISTANCE | - |
dc.subject | OPERATION | - |
dc.title | In-plane channel-structured catalyst layer for polymer electrolyte membrane fuel cells | - |
dc.type | Article | - |
dc.identifier.wosid | 000424851600034 | - |
dc.identifier.scopusid | 2-s2.0-85041793604 | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.issue | 5 | - |
dc.citation.beginningpage | 4682 | - |
dc.citation.endingpage | 4688 | - |
dc.citation.publicationname | ACS APPLIED MATERIALS & INTERFACES | - |
dc.identifier.doi | 10.1021/acsami.7b16433 | - |
dc.contributor.localauthor | Kim, Hee-Tak | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | polymer electrolyte membrane fuel cell | - |
dc.subject.keywordAuthor | catalyst layer | - |
dc.subject.keywordAuthor | in-plane channel | - |
dc.subject.keywordAuthor | surface pattern | - |
dc.subject.keywordAuthor | mass transport | - |
dc.subject.keywordPlus | OXYGEN REDUCTION REACTION | - |
dc.subject.keywordPlus | INHOMOGENEOUS COMPRESSION | - |
dc.subject.keywordPlus | SOFT LITHOGRAPHY | - |
dc.subject.keywordPlus | CURRENT-DENSITY | - |
dc.subject.keywordPlus | POWER-SYSTEM | - |
dc.subject.keywordPlus | PEMFC | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | RESISTANCE | - |
dc.subject.keywordPlus | OPERATION | - |
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