DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yoon, H | - |
dc.contributor.author | Zou, L | - |
dc.contributor.author | Sammes, NM | - |
dc.contributor.author | Chung, J | - |
dc.date.accessioned | 2017-07-19T12:11:46Z | - |
dc.date.available | 2017-07-19T12:11:46Z | - |
dc.date.created | 2016-01-11 | - |
dc.date.issued | 2015-09-14 | - |
dc.identifier.issn | 0360-3199 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/35412 | - |
dc.description.abstract | Lanthanum strontium titanate perovsldte (LST) was doped with Ru (La0.4Sr0.6Ti1-xRuxO3-delta (LSTR), x = 0.02, 0.05), and its properties were characterized by various methods for possible use as the anode material in solid oxide fuel cells (SOFCs). The thermal expansion coefficients of Ru-doped samples (10.2-10.3 x 10(-6) K-1) are about the same as LST (10.4 x 10(-6) K-1), which is similar to that of YSZ. It has been found that under a reducing atmosphere, doped Ru is precipitated from the structure. This decreases the total electrical conductivity and increases the ionic conductivity because of the increased number of B-site deficiencies created by the Ru precipitation. Impedance spectra measured with the buttons cells of the LSTRs-YSZ/YSZ/LSM-YSZ/LSM configuration reveal that the polarization resistance with the LST-YSZ anode increases with time (from 4.95 Omega cm(2) to 5.78 Omega cm(2) in 24 h of H-2 fuel atmosphere), whereas the resistance with Ru-doped LST-YSZ anodes decreases with time (from 4.87 Omega cm(2) and 4.17 Omega cm(2) to 4.06 Omega cm(2) and 2.74 Omega cm(2) for the LSTR0.02-YSZ and LSTR0.05-YSZ anodes, respectively). Accordingly, the final maximum power density at 850 degrees C also increases from 52 mW/cm(2) for LST-YSZ to 74 mW/cm(2) and 115 mW/cm(2) for the LSTR0.02-YSZ and LSTR0.05-YSZ anodes, respectively. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.relation.isPartOf | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | - |
dc.title | Ru-doped lanthanum strontium titanates for the anode of solid oxide fuel cells | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/J.IJHYDENE.2015.05.193 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.40, no.34, pp.10985 - 10993 | - |
dc.identifier.wosid | 000360772200031 | - |
dc.date.tcdate | 2019-03-01 | - |
dc.citation.endPage | 10993 | - |
dc.citation.number | 34 | - |
dc.citation.startPage | 10985 | - |
dc.citation.title | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | - |
dc.citation.volume | 40 | - |
dc.contributor.affiliatedAuthor | Sammes, NM | - |
dc.contributor.affiliatedAuthor | Chung, J | - |
dc.identifier.scopusid | 2-s2.0-84955422795 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 11 | - |
dc.description.scptc | 8 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | POTENTIAL SOFC ANODE | - |
dc.subject.keywordPlus | ELECTRICAL-PROPERTIES | - |
dc.subject.keywordPlus | RUTHENIUM CATALYSTS | - |
dc.subject.keywordPlus | SITE DEFICIENCY | - |
dc.subject.keywordPlus | METHANE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | PEROVSKITE | - |
dc.subject.keywordPlus | SRTIO3 | - |
dc.subject.keywordPlus | LA | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordAuthor | Solid oxide fuel cell | - |
dc.subject.keywordAuthor | Lanthanum strontium titanate anode | - |
dc.subject.keywordAuthor | Ruthenium doping | - |
dc.subject.keywordAuthor | Precipitation | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
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