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作者:

Zhang Feipeng (Zhang Feipeng.) | Niu Baocheng (Niu Baocheng.) | Zhang Kunshu (Zhang Kunshu.) | Zhang Xin (Zhang Xin.) | Lu Qingmei (Lu Qingmei.) | Zhang Jiuxing (Zhang Jiuxing.)

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EI Scopus SCIE CSCD

摘要:

The rare earth Pr doped Ca1-xPrxMnO3 (x=0, 0.06, 0.08, 0.1, 0.12, and 0.14) compound bulk samples were prepared to study the effect of Pr doping on thermoelectric transport properties of CaMnO3 compound system. The doped samples exhibited single phase composition within the experimental doping range, with condensed bulk microstructure and small porosities. The electrical resistivity was remarkably reduced for doped samples, on account of the enhanced carrier concentration; the absolute value of Seebeck coefficient was deteriorated mainly due to enhanced electron carrier concentration. The electrical performances of the doped samples reflected by resistivity and Seebeck coefficient fluctuations were optimistically tuned, with an optimized power factor value of 0.342 mW/(m.K-2) at 873 K for x=0.08 sample, which was very much higher comparing with that of the un-doped sample. The lattice thermal conduction was really confined, leading to distinctly repressed total thermal conductivity. The thermoelectric performance was noticeably improved by Pr doping and the dimensionless figure of merit ZT for the Ca0.92Pr0.08MnO3 compound was favorably optimized with the maximum value 0.16 at 873 K.

关键词:

CaMnO3 compound Pr doping rare earths thermoelectric properties

作者机构:

  • [ 1 ] [Zhang Feipeng]Henan Univ Urban Construct, Inst Phys, Pingdingshan 467036, Peoples R China
  • [ 2 ] [Niu Baocheng]Henan Univ Urban Construct, Inst Phys, Pingdingshan 467036, Peoples R China
  • [ 3 ] [Zhang Kunshu]Henan Univ Urban Construct, Inst Phys, Pingdingshan 467036, Peoples R China
  • [ 4 ] [Zhang Feipeng]Beijing Univ Technol, Coll Mat Sci & Engn, Chinese Minist Educ, Key Lab Adv Funct Mat, Beijing 100124, Peoples R China
  • [ 5 ] [Zhang Xin]Beijing Univ Technol, Coll Mat Sci & Engn, Chinese Minist Educ, Key Lab Adv Funct Mat, Beijing 100124, Peoples R China
  • [ 6 ] [Lu Qingmei]Beijing Univ Technol, Coll Mat Sci & Engn, Chinese Minist Educ, Key Lab Adv Funct Mat, Beijing 100124, Peoples R China
  • [ 7 ] [Zhang Jiuxing]Beijing Univ Technol, Coll Mat Sci & Engn, Chinese Minist Educ, Key Lab Adv Funct Mat, Beijing 100124, Peoples R China

通讯作者信息:

  • [Zhang Feipeng]Henan Univ Urban Construct, Inst Phys, Pingdingshan 467036, Peoples R China

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来源 :

JOURNAL OF RARE EARTHS

ISSN: 1002-0721

年份: 2013

期: 9

卷: 31

页码: 885-890

4 . 9 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:211

JCR分区:2

中科院分区:4

被引次数:

WoS核心集被引频次: 19

SCOPUS被引频次: 21

ESI高被引论文在榜: 0 展开所有

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中文被引频次:

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