Nanostructured thermoelectric skutterudite Co 1-xNi xSb 3 alloys

Qinyu He, Qing Hao, Xiaowei Wang, Jian Yang, Yucheng Lan, Xiao Yan, Bo Yu, Yi Ma, Bed Poudel, Giri Joshi, Dezhi Wang, Gang Chen, Zhifeng Ren

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Nanostructured Ni-doped skutterudites Co 1-xNi xSb 3 (with x ranging from 0.01 to 0.09) were prepared by ball milling and direct-current induced hot press. It was found that the thermal conductivity was reduced due to strong electron-phonon scattering from Ni-doping as well as phonon scattering from the increased grain boundary of the nanostructures. A maximum dimensionless figure-of-merit of 0.7 was obtained in Co 0.91Ni 0.09Sb 3 at 525°C.

Original languageEnglish (US)
Pages (from-to)4003-4006
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume8
Issue number8
DOIs
StatePublished - Aug 2008
Externally publishedYes

Fingerprint

Phonons
Phonon scattering
Skutterudites
Thermal Conductivity
Electron scattering
Nanostructures
Induced currents
Ball milling
scattering
figure of merit
balls
Thermal conductivity
Grain boundaries
thermal conductivity
grain boundaries
direct current
Doping (additives)
Electrons
electrons

Keywords

  • Ball milling
  • Hot press
  • Low thermal conductivity
  • Nanostructure
  • Skutterudites

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

Cite this

Nanostructured thermoelectric skutterudite Co 1-xNi xSb 3 alloys. / He, Qinyu; Hao, Qing; Wang, Xiaowei; Yang, Jian; Lan, Yucheng; Yan, Xiao; Yu, Bo; Ma, Yi; Poudel, Bed; Joshi, Giri; Wang, Dezhi; Chen, Gang; Ren, Zhifeng.

In: Journal of Nanoscience and Nanotechnology, Vol. 8, No. 8, 08.2008, p. 4003-4006.

Research output: Contribution to journalArticle

He, Q, Hao, Q, Wang, X, Yang, J, Lan, Y, Yan, X, Yu, B, Ma, Y, Poudel, B, Joshi, G, Wang, D, Chen, G & Ren, Z 2008, 'Nanostructured thermoelectric skutterudite Co 1-xNi xSb 3 alloys', Journal of Nanoscience and Nanotechnology, vol. 8, no. 8, pp. 4003-4006. https://doi.org/10.1166/jnn.2008.469
He, Qinyu ; Hao, Qing ; Wang, Xiaowei ; Yang, Jian ; Lan, Yucheng ; Yan, Xiao ; Yu, Bo ; Ma, Yi ; Poudel, Bed ; Joshi, Giri ; Wang, Dezhi ; Chen, Gang ; Ren, Zhifeng. / Nanostructured thermoelectric skutterudite Co 1-xNi xSb 3 alloys. In: Journal of Nanoscience and Nanotechnology. 2008 ; Vol. 8, No. 8. pp. 4003-4006.
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AU - Yan, Xiao

AU - Yu, Bo

AU - Ma, Yi

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AU - Chen, Gang

AU - Ren, Zhifeng

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