Influence of the sintering temperature on electrical property of the Ce0.8Sm0.1Y0.1O1.9 electrolyte

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	Influence of the sintering temperature on electrical property of the Ce0.8Sm0.1Y0.1O1.9 electrolyte
	X. Q. Sha ; Z. Lu ; X. Q. Huang ; J. P. Miao ; Z. G. Liu ; X. S. Xin ; Y. H. Zhang ; W. H. Su
刊名	Journal of Alloys and Compounds
	2007
卷号	433 期号:1-2 页码:274-278
关键词	SCFC co-doped ceria electrolyte sinter temperature doped ceria electrolyte oxide fuel-cells ionic-conductivity gd ceramics
ISSN号	0925-8388
中文摘要	In this study, nano-scale rare-earth co-doped Ce0.8Sm0.1Y0.1O1.9 material was prepared by the sol-gel method. When sintered after 1300, 1400, 1500 and 1600 degrees C, the samples all presented well single phase. The SEM result exhibited that when sintered after 1300 and 1400 degrees C, the pellets were denser with fewer pores than those sintered after 1500 and 1600 degrees C; and the sample was over-sintered after sintered over 1500 degrees C. Impedance spectroscopy analyses of the samples sintered at various temperatures were performed at 300-850 degrees C. And electrical conductivity and activation energy of bulk, grain boundary and the whole electrolyte were calculated. The results displayed that, for all samples treated at different temperatures, the activity energies of grain-boundary conduction all presented higher values (1.02-1.20 eV) than those of the bulk (0.78-0.85 eV); and the samples sintered at 1300 and 1400 degrees C showed much higher total conductivity and lower activation energy than those sintered at 1500 and 1600 degrees C. It demonstrated that rare-earth co-doped Ce0.8Sm0.1Y0.1O1.9 material prepared by the sol-gel method could be easy to sinter at lower temperature dense ceramic electrolyte with better electrical property. (c) 2006 Elsevier B.V. All rights reserved.
原文出处	://WOS:000245773100052
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/33799]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Q. Sha,Z. Lu,X. Q. Huang,et al. Influence of the sintering temperature on electrical property of the Ce0.8Sm0.1Y0.1O1.9 electrolyte[J]. Journal of Alloys and Compounds,2007,433(1-2):274-278.
APA	X. Q. Sha.,Z. Lu.,X. Q. Huang.,J. P. Miao.,Z. G. Liu.,...&W. H. Su.(2007).Influence of the sintering temperature on electrical property of the Ce0.8Sm0.1Y0.1O1.9 electrolyte.Journal of Alloys and Compounds,433(1-2),274-278.
MLA	X. Q. Sha,et al."Influence of the sintering temperature on electrical property of the Ce0.8Sm0.1Y0.1O1.9 electrolyte".Journal of Alloys and Compounds 433.1-2(2007):274-278.