Comparison of the high temperature thermoelectric properties for Ag-doped and Ag-added Ca(3)Co(4)O(9)

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	Comparison of the high temperature thermoelectric properties for Ag-doped and Ag-added Ca(3)Co(4)O(9)
	Y. Wang; Y. Sui; J. G. Cheng; X. J. Wang; W. H. Su
	2009
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	477 期号:1-2 页码:817-821
摘要	A series of high-textured Ag-doped or/and Ag-added Ca(3)Co(4)O(9) ceramic specimens have been prepared by a cold-pressing technique and their thermoelectric properties were compared from room temperature to 1000 K. The substitution of Ag(+) for Ca(2+) causes the reduction of resistivity and the enhancement of thermoelectric power simultaneously, whereas the addition of metal Ag results in the decrease on resistivity together with thermoelectric power. Both Ag(+) doping and Ag addition can enhance power factor; however, the doping of Ag(+) is advantageous for the suppression of thermal conductivity whereas the addition of Ag facilitates thermal conductivity. Ca(2.7)Ag(0.3)Co(4)O(9)/Ag-10wt% composite exhibits a quite respectable thermoelectric performance; the dimensionless figure of merit ZT can reach 0.5 at 1000 K. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[wang, yang; sui, yu; cheng, jinguang; wang, xianjie; su, wenhui] harbin inst technol, ccmst, dept phys, harbin 150001, peoples r china. [sui, yu] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;sui, y (reprint author), harbin inst technol, ccmst, dept phys, harbin 150001, peoples r china;suiyu@hit.edu.cn
关键词	Cobalt Oxide Substitution Composite Thermoelectric Properties Transport-properties System Oxide Substitution Thermopower Performance Fabrication Ceramics
URL	查看原文
WOS记录号	WOS:000266386400161
引用统计	被引频次：146[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/321006/32395
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Wang,Y. Sui,J. G. Cheng,et al. Comparison of the high temperature thermoelectric properties for Ag-doped and Ag-added Ca(3)Co(4)O(9)[J]. Journal of Alloys and Compounds,2009,477(1-2):817-821.
APA	Y. Wang,Y. Sui,J. G. Cheng,X. J. Wang,&W. H. Su.(2009).Comparison of the high temperature thermoelectric properties for Ag-doped and Ag-added Ca(3)Co(4)O(9).Journal of Alloys and Compounds,477(1-2),817-821.
MLA	Y. Wang,et al."Comparison of the high temperature thermoelectric properties for Ag-doped and Ag-added Ca(3)Co(4)O(9)".Journal of Alloys and Compounds 477.1-2(2009):817-821.