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Optimization of Ag Nanoparticles on Thermoelectric Performance of Ba-Filled Skutterudite

文献类型：期刊论文

作者Peng, Kunling1; Guo, Lijie1; Wang, Guoyu2; Su, Xianli3; Zhou, Xiaoyuan1,4; Tang, Xingfeng3; Uher, Ctirad4
刊名SCIENCE OF ADVANCED MATERIALS
出版日期2017-03-01
卷号9期号:3-4页码:682-687
关键词Filled Skutterudite Ag Nanoparticles Phonon Scattering Thermoelectric Properties Nanostructure
ISSN号1947-2935
DOI10.1166/sam.2017.2406
通讯作者Zhou, XY (reprint author), Chongqing Univ, Coll Phys, Chongqing 401331, Peoples R China. ; Zhou, XY ; Uher, C (reprint author), Univ Michigan, Dept Phys, 450 Church St, Ann Arbor, MI 48109 USA.
英文摘要The influence of different amounts of Ag nanoparticles (0, 0.5, 1, 2, 5, and 10 wt%) on electrical and thermal transport properties has been investigated in the Ba-filled skutterudite compounds, Ba0.5Co4Sb12, which was synthesized by ball milling followed by hot pressing in this work. It was found that Ag nanoparticles drastically enhance the electric conductivity as well as the Seebeck coefficient. In addition, Ag nanoparticles reduce the lattice thermal conductivity through scattering a wider range of frequencies phonons, although the total thermal conductivity was not reduced because of the significantly enhanced electrical conductivity. Moreover, it is observed that Ag nanoparticles can uniformly disperse between the grain boundaries and on the surfaces of grains when the amount of Ag is less than 2 wt%. Ag3Sb impurity is produced when a greater concentration of Ag nanoparticles is used. Therefore, the optimal amount of Ag nanoparticles is 2 wt% in Ba0.5Co4Sb12, where the ZT = S-2 sigma T/kappa value reaches 1.4. These observations demonstrate an exciting scientific opportunity to raise the figure-of-merit of filled skutterudites.
资助项目National Natural Science Foundation of China[11344010] ; Fundamental Research Funds for the Central Universities[CQDXWL-2013-Z010] ; Revolutionary Materials for Solid State Energy Conversion, an Energy Frontier Research Center - US Department of Energy, Office of Science, Office of Basic Energy Science[DE-SC001054]
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000397862500066
出版者AMER SCIENTIFIC PUBLISHERS
源URL[http://119.78.100.138/handle/2HOD01W0/3511]  
专题机器人与3D打印技术创新中心
通讯作者Zhou, Xiaoyuan; Uher, Ctirad
作者单位1.Chongqing Univ, Coll Phys, Chongqing 401331, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
3.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
4.Univ Michigan, Dept Phys, 450 Church St, Ann Arbor, MI 48109 USA
推荐引用方式
GB/T 7714		 Peng, Kunling,Guo, Lijie,Wang, Guoyu,et al. Optimization of Ag Nanoparticles on Thermoelectric Performance of Ba-Filled Skutterudite[J]. SCIENCE OF ADVANCED MATERIALS,2017,9(3-4):682-687.
APA Peng, Kunling.,Guo, Lijie.,Wang, Guoyu.,Su, Xianli.,Zhou, Xiaoyuan.,...&Uher, Ctirad.(2017).Optimization of Ag Nanoparticles on Thermoelectric Performance of Ba-Filled Skutterudite.SCIENCE OF ADVANCED MATERIALS,9(3-4),682-687.
MLA Peng, Kunling,et al."Optimization of Ag Nanoparticles on Thermoelectric Performance of Ba-Filled Skutterudite".SCIENCE OF ADVANCED MATERIALS 9.3-4(2017):682-687.

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来源：重庆绿色智能技术研究院

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