DC Field | Value | Language |
---|---|---|
dc.contributor.author | Seung.Gon Kim | - |
dc.contributor.author | Lee, SJ | - |
dc.date.accessioned | 2015-06-25T02:28:56Z | - |
dc.date.available | 2015-06-25T02:28:56Z | - |
dc.date.created | 2014-03-20 | - |
dc.date.issued | 2013-03 | - |
dc.identifier.issn | 0909-0495 | - |
dc.identifier.other | 2015-OAK-0000029678 | en_US |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/11044 | - |
dc.description.abstract | A gas diffusion layer (GDL) in a polymer electrolyte fuel cell (PEFC) is quantitatively visualized using synchrotron X-ray micro-computed tomography. For three-dimensional reconstruction, an adaptive threshold method is used. This method is compared with the conventional method, i.e. Otsu's method. Additionally, the spatial and temporal variations of the porosity distribution of the GDL under freeze-and-thaw cycles are investigated experimentally. The freeze-and-thaw cycles are established simply using a CRYO system and light source illumination, respectively. Structural defects are found to largely affect the porosity of the GDL. In addition, a cyclic porosity variation is observed in the GDL under freeze-and-thaw cycles. The heterogeneous porosity is irreversibly decreased with the progress of repetitive cycles. | - |
dc.description.statementofresponsibility | open | en_US |
dc.language | English | - |
dc.publisher | WILEY-BLACKWELL | - |
dc.relation.isPartOf | JOURNAL OF SYNCHROTRON RADIATION | - |
dc.rights | BY_NC_ND | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.0/kr | en_US |
dc.title | Quantitative visualization of a gas diffusion layer in a polymer electrolyte fuel cell using synchrotron X-ray imaging techniques | - |
dc.type | Article | - |
dc.contributor.college | 기계공학과 | en_US |
dc.identifier.doi | 10.1107/S0909049513001659 | - |
dc.author.google | Kim, SG | en_US |
dc.author.google | Lee, SJ | en_US |
dc.relation.volume | 20 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.startpage | 286 | en_US |
dc.relation.lastpage | 292 | en_US |
dc.contributor.id | 10054593 | en_US |
dc.relation.journal | JOURNAL OF SYNCHROTRON RADIATION | en_US |
dc.relation.index | SCI급, SCOPUS 등재논문 | en_US |
dc.relation.sci | SCI | en_US |
dc.collections.name | Journal Papers | en_US |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF SYNCHROTRON RADIATION, v.20, no.2, pp.286 - 292 | - |
dc.identifier.wosid | 000314929700011 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 292 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 286 | - |
dc.citation.title | JOURNAL OF SYNCHROTRON RADIATION | - |
dc.citation.volume | 20 | - |
dc.contributor.affiliatedAuthor | Lee, SJ | - |
dc.identifier.scopusid | 2-s2.0-84874091102 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 3 | - |
dc.description.scptc | 4 | * |
dc.date.scptcdate | 2018-10-274 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | POROSITY DISTRIBUTIONS | - |
dc.subject.keywordPlus | PERMEABILITY | - |
dc.subject.keywordPlus | TOMOGRAPHY | - |
dc.subject.keywordAuthor | polymer electrolyte fuel cell | - |
dc.subject.keywordAuthor | gas diffusion layer | - |
dc.subject.keywordAuthor | porosity distribution | - |
dc.subject.keywordAuthor | freeze-and-thaw cycle | - |
dc.subject.keywordAuthor | X-ray tomography | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Optics | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalResearchArea | Optics | - |
dc.relation.journalResearchArea | Physics | - |
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