Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yoon, Kyung Joong | - |
dc.contributor.author | Lee, Sung-il | - |
dc.contributor.author | An, Hyegsoon | - |
dc.contributor.author | Kim, Jeonghee | - |
dc.contributor.author | Son, Ji-Won | - |
dc.contributor.author | Lee, Jong-Ho | - |
dc.contributor.author | Je, Hae-June | - |
dc.contributor.author | Lee, Hae-Weon | - |
dc.contributor.author | Kim, Byung-Kook | - |
dc.date.accessioned | 2024-01-20T10:04:16Z | - |
dc.date.available | 2024-01-20T10:04:16Z | - |
dc.date.created | 2021-09-05 | - |
dc.date.issued | 2014-03-06 | - |
dc.identifier.issn | 0360-3199 | - |
dc.identifier.uri | https://pubs.kist.re.kr/handle/201004/127005 | - |
dc.description.abstract | To further develop solid oxide regenerative fuel cell (SORFC) technology, the effect of gas diffusion in the hydrogen electrode on the performance of solid oxide fuel cells (SOFCs) and solid oxide electrolysis cells (SOECs) is investigated. The hydrogen electrode-supported cells are fabricated and tested under various operating conditions in both the power generation and hydrogen production modes. A transport model based on the dusty-gas model is developed to analyze the multi-component diffusion process in the porous media, and the transport parameters are obtained by applying the experimentally measured limiting current data to the model. The structural parameters of the porous electrode, such as porosity and tortuosity, are derived using the Chapman-Enskogg model and microstructural image analysis. The performance of an SOEC is strongly influenced by the gas diffusion limitation at the hydrogen electrode, and the limiting current density of an SOEC is substantially lower than that of an SOFC for the standard cell structure under normal operating conditions. The pore structure of the hydrogen electrode is optimized by using poly(methyl methacrylate) (PMMA), a pore-forming agent, and consequently, the hydrogen production rate of the SOEC is improved by a factor of greater than two under moderate humidity conditions. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | HIGH-TEMPERATURE ELECTROLYSIS | - |
dc.subject | YTTRIA-STABILIZED ZIRCONIA | - |
dc.subject | MASS-TRANSFER MODELS | - |
dc.subject | INTERMEDIATE-TEMPERATURE | - |
dc.subject | OXYGEN-ELECTRODE | - |
dc.subject | DUSTY-GAS | - |
dc.subject | ELECTROCHEMICAL CHARACTERIZATION | - |
dc.subject | MICROSTRUCTURE DEGRADATION | - |
dc.subject | PERFORMANCE | - |
dc.subject | ANODE | - |
dc.title | Gas transport in hydrogen electrode of solid oxide regenerative fuel cells for power generation and hydrogen production | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.ijhydene.2013.12.142 | - |
dc.description.journalClass | 1 | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.39, no.8, pp.3868 - 3878 | - |
dc.citation.title | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | - |
dc.citation.volume | 39 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 3868 | - |
dc.citation.endPage | 3878 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.identifier.wosid | 000332999800030 | - |
dc.identifier.scopusid | 2-s2.0-84894086975 | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | HIGH-TEMPERATURE ELECTROLYSIS | - |
dc.subject.keywordPlus | YTTRIA-STABILIZED ZIRCONIA | - |
dc.subject.keywordPlus | MASS-TRANSFER MODELS | - |
dc.subject.keywordPlus | INTERMEDIATE-TEMPERATURE | - |
dc.subject.keywordPlus | OXYGEN-ELECTRODE | - |
dc.subject.keywordPlus | DUSTY-GAS | - |
dc.subject.keywordPlus | ELECTROCHEMICAL CHARACTERIZATION | - |
dc.subject.keywordPlus | MICROSTRUCTURE DEGRADATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ANODE | - |
dc.subject.keywordAuthor | Solid oxide regenerative fuel cell | - |
dc.subject.keywordAuthor | Solid oxide fuel cell | - |
dc.subject.keywordAuthor | Solid oxide electrolysis cell | - |
dc.subject.keywordAuthor | Gas diffusion | - |
dc.subject.keywordAuthor | Concentration polarization | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.