The conductivity of PrGaO3-based perovskite oxides

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	The conductivity of PrGaO3-based perovskite oxides
	Z. G. Liu; L. G. Cong; X. Q. Huang; Z. Lu; W. H. Su
	2001
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	314 期号:1-2 页码:281-285
摘要	PrGaO3-based perovskite oxides were synthesized using a standard solid state technique. In the formula Prt-xMxGa1-yMgyO3 (M = Ca, Sr), the solid solution limit is x = 0.1 for Ca/Sr doped at A sites and y = 0.2 for Mg doped at B sites. Thr oxygen ion conductivity increases and the activation energy decreases with increasing dopant concentration at A sites or B sites by single doping. However, the conductivity decreases when both A and B sites are doped, compared with single doping only. Mg-doped samples have superior properties, i.e. PrGa0.9Mg0.1O3 has a maximum conductivity of 0.05 S/cm at 800 degreesC, while PrGa0.8Mg0.2O3 has a minimum activation energy of 24.19 kJ/mol in all the samples. With increasing temperature, the oxygen ion transport number of the samples increases. The conductivity of these samples is mainly ionic although hole conduction was observed. A power density of 0.131 W/cm(2) and a short circuit current density of 0.45 A/cm(2) were obtained at 940 degreesC in the fuel cell experiment by using PrGa0.9Mg0.1O3 as an electrolyte. (C) 2001 Elsevier Science B.V. All rights reserved.
部门归属	jilin univ, grp rare earth solid state phys, changchun 130023, peoples r china. jilin univ, dept phys, changchun 130023, peoples r china. jilin univ, key lab inorgan synth & preparat chem, changchun 130023, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;su, wh (reprint author), jilin univ, grp rare earth solid state phys, changchun 130023, peoples r china
关键词	Rare Earth Compounds Oxide Materials Electrode Materials Chemical Synthesis Ionic Conduction Doped Lagao3 Ion Conductor Zirconia Raman
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WOS记录号	WOS:000166459100042
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36731
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. G. Liu,L. G. Cong,X. Q. Huang,et al. The conductivity of PrGaO3-based perovskite oxides[J]. Journal of Alloys and Compounds,2001,314(1-2):281-285.
APA	Z. G. Liu,L. G. Cong,X. Q. Huang,Z. Lu,&W. H. Su.(2001).The conductivity of PrGaO3-based perovskite oxides.Journal of Alloys and Compounds,314(1-2),281-285.
MLA	Z. G. Liu,et al."The conductivity of PrGaO3-based perovskite oxides".Journal of Alloys and Compounds 314.1-2(2001):281-285.