Elemental Diffusion between Sm0.5Sr0.5CoO3-delta Cathode and La0.9Sr0.1Ga0.8Mg0.2O3-delta Electrolyte

	Elemental Diffusion between Sm0.5Sr0.5CoO3-delta Cathode and La0.9Sr0.1Ga0.8Mg0.2O3-delta Electrolyte
	Hong Bo 1,2; Zhang Yun 1,2; Tu Baofeng 1; Cheng Mojie 1
刊名	chinese journal of catalysis
	2009-09-01
卷号	30 期号:9 页码:919-925
关键词	solid oxide fuel cell lanthanum strontium magnesium gallium oxide strontium-doped samarium cobaltite electrochemical impedance spectroscopy
英文摘要	the effect of elemental diffusion from strontium-doped samarium cobaltite (ssc) cathode to lanthanum strontium magnesium gallium oxide (lsgm) electrolyte was investigated by electrochemical impedance spectroscopy (eis) combined with x-ray diffraction (xrd). the xrd results showed that lasrga3o7 and lasrgao4 appeared at the interface between lsgm and ssc after sintering at high temperature. when the sintering temperature reached 1373 k, the high electronic conduction of the la-sr-co-o compound was formed. the decrease of open-circuit voltage and oxygen ion transfer number, and the increase of electronic conduction of lsgm electrolyte are the results of the cobalt diffusion from electrode to the lsgm film. the eis results indicate that the electronic conduction of lsgm increases and the oxygen ion transfer number and open-circuit voltage decrease with increasing cathode sintering temperature, which arc caused by the formation of lasrga3o7 and lasrgao4 at the interface of lsgm and ssc.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; engineering, chemical
研究领域[WOS]	chemistry ; engineering
关键词[WOS]	oxide fuel-cell ; mg-doped lagao3 ; conductor ; sofc ; sr
收录类别	SCI
语种	英语
WOS记录号	WOS:000271079600013
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/141530]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Hong Bo,Zhang Yun,Tu Baofeng,et al. Elemental Diffusion between Sm0.5Sr0.5CoO3-delta Cathode and La0.9Sr0.1Ga0.8Mg0.2O3-delta Electrolyte[J]. chinese journal of catalysis,2009,30(9):919-925.
APA	Hong Bo,Zhang Yun,Tu Baofeng,&Cheng Mojie.(2009).Elemental Diffusion between Sm0.5Sr0.5CoO3-delta Cathode and La0.9Sr0.1Ga0.8Mg0.2O3-delta Electrolyte.chinese journal of catalysis,30(9),919-925.
MLA	Hong Bo,et al."Elemental Diffusion between Sm0.5Sr0.5CoO3-delta Cathode and La0.9Sr0.1Ga0.8Mg0.2O3-delta Electrolyte".chinese journal of catalysis 30.9(2009):919-925.