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学科主题物理化学
Stability of manganese-oxide-modified lanthanum strontium cobaltite in the presence of chromia
Ou, Ding Rong; Cheng, Mojie; Qu DR(区定容)
关键词Solid Oxide Fuel Cells Perovskite Chromia Stability Solid-state Reactions
刊名JOURNAL OF POWER SOURCES
2014-12-25
DOI10.1016/j.jpowsour.2014.08.077
272期:1页:513-517
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Electrochemistry ; Energy & Fuels
研究领域[WOS]Electrochemistry ; Energy & Fuels
关键词[WOS]SOFC CATHODES ; FUEL-CELLS ; CR ; LANI0.6FE0.4O3 ; DEPOSITION ; LAYERS
英文摘要In 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.
语种英语
WOS记录号WOS:000344208700064
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143993
专题中国科学院大连化学物理研究所
通讯作者Qu DR(区定容)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Div Fuel Cells & Battery, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
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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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