DICP OpenIR
Subject Area物理化学
Stability of manganese-oxide-modified lanthanum strontium cobaltite in the presence of chromia
Ou, Ding Rong; Cheng, Mojie; Qu DR(区定容)
KeywordSolid Oxide Fuel Cells Perovskite Chromia Stability Solid-state Reactions
Source PublicationJOURNAL OF POWER SOURCES
2014-12-25
DOI10.1016/j.jpowsour.2014.08.077
Volume272Issue:1Pages:513-517
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectElectrochemistry ; Energy & Fuels
WOS Research AreaElectrochemistry ; Energy & Fuels
WOS KeywordSOFC CATHODES ; FUEL-CELLS ; CR ; LANI0.6FE0.4O3 ; DEPOSITION ; LAYERS
AbstractIn order to restrain the decomposition and conductivity degradation of perovskite-type conductive material in the presence of chromia, manganese oxide modification of lanthanum strontium cobaltite has been studied. La0.7Sr0.3CoO3-delta (LSC) and MnO2-modified LSC coatings are applied onto Ni-Cr alloy and exposed to long-term oxidation text to examine their chemical stability. In a LSC coating, chromium species migrating from the Ni-Cr alloy could induce the decomposition of LSC and produce SrCrO4 and Co-Cr spinel oxides. In contrast, in the MnO2-modified LSC, Sr is stable and the low-conductivity phase SrCrO4 phase is rarely seen even the coated alloy has gone through 1000 h of oxidation tests at 800 degrees C. It highlights that MnO2 modification could greatly improve the stability of LSC under Cr-rich conditions. The study of solid state reactions reveals that the influence of MnO2 is mainly due to the reaction between MnO2 and LSC, instead of the direct reaction between MnO2 and chromium oxides. (C) 2014 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000344208700064
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/143993
Collection中国科学院大连化学物理研究所
Corresponding AuthorQu DR(区定容)
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Div Fuel Cells & Battery, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Ou, Ding Rong,Cheng, Mojie,Qu DR. Stability of manganese-oxide-modified lanthanum strontium cobaltite in the presence of chromia[J]. JOURNAL OF POWER SOURCES,2014,272(1):513-517.
APA Ou, Ding Rong,Cheng, Mojie,&区定容.(2014).Stability of manganese-oxide-modified lanthanum strontium cobaltite in the presence of chromia.JOURNAL OF POWER SOURCES,272(1),513-517.
MLA Ou, Ding Rong,et al."Stability of manganese-oxide-modified lanthanum strontium cobaltite in the presence of chromia".JOURNAL OF POWER SOURCES 272.1(2014):513-517.
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