Effect of Y doping at Co site on thermoelectric properties of Ca3Co4O9

doi:10.1142/S1793604720510091

GIEC OpenIR

	Effect of Y doping at Co site on thermoelectric properties of Ca3Co4O9
	Fan, Youyu 1; Qing, Xiaoling 2; Zeng, Dechang 1
	2020-04-01
发表期刊	FUNCTIONAL MATERIALS LETTERS
ISSN	1793-6047
卷号	13 期号:3 页码:6
通讯作者	Qing, Xiaoling(qixl@ms.giec.ac.cn) ; Zeng, Dechang(medczeng@scut.edu.cn)
摘要	In this work, our effort was to improve the thermoelectric properties of Ca3Co4O9 thermoelectric material. Ca3Co4-xYxO9 polycrystalline thermoelectric ceramics have been fabricated by sol-gel method plus spontaneous combustion and cold isostatic pressing process. The structure, surface topography and thermoelectric properties of Ca3Co4-xYxO9 polycrystalline thermoelectric were investigated by X-ray diffraction (XRD), SEM and ZEM3, respectively. The results showed that Y doping affected the microstructure and thermoelectric performance remarkable. With the increasing of Y doping, the electrical conductivity had a maximum value, and thermal conductivity has a minimum value. Seebeck coefficient gradually increased with Y doping content increasing always. The figure of merit was 0.07 at 673K for the Ca3Co3.7Y0.3O9 sample. The results showed that the thermoelectric performance of Ca3Co4O9 could be improved 39% with the substitution of Y than the un-doped.
关键词	Sol-gel thermoelectric material doping thermoelectric property
DOI	10.1142/S1793604720510091
关键词[WOS]	CA SUBSTITUTION ; FE ; MICROSTRUCTURE ; TRANSPORT ; CU
收录类别	SCI
语种	英语
资助项目	Guangdong Provincial Science and Technology Program[2015A050502015] ; Guangzhou Municipal Science and Technology Program[201604030070] ; Guangzhou Municipal Science and Technology Program[201707010056] ; Guangzhou Municipal Science and Technology Program[201604016103] ; Natural Science Foundation of Guangdong Province[2016A030313494]
WOS研究方向	Materials Science
项目资助者	Guangdong Provincial Science and Technology Program ; Guangzhou Municipal Science and Technology Program ; Natural Science Foundation of Guangdong Province
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000537348900012
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/27203
专题	中国科学院广州能源研究所
通讯作者	Qing, Xiaoling; Zeng, Dechang
作者单位	1.South China Univ Technol, Dept Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Fan, Youyu,Qing, Xiaoling,Zeng, Dechang. Effect of Y doping at Co site on thermoelectric properties of Ca3Co4O9[J]. FUNCTIONAL MATERIALS LETTERS,2020,13(3):6.
APA	Fan, Youyu,Qing, Xiaoling,&Zeng, Dechang.(2020).Effect of Y doping at Co site on thermoelectric properties of Ca3Co4O9.FUNCTIONAL MATERIALS LETTERS,13(3),6.
MLA	Fan, Youyu,et al."Effect of Y doping at Co site on thermoelectric properties of Ca3Co4O9".FUNCTIONAL MATERIALS LETTERS 13.3(2020):6.