Title:
METHOD FOR MANUFACTURING NANOCOMPOSITE THERMOELECTRIC CONVERSION MATERIAL
Document Type and Number:
WIPO Patent Application WO/2015/005065
Kind Code:
A1
Abstract:
This invention provides a method for manufacturing a nanocomposite thermoelectric conversion material in which phonon-scattering particles having a specific shape are dispersed, reducing thermal conductivity and increasing thermoelectric conversion performance. Said method for manufacturing a nanocomposite thermoelectric conversion material, in which oxide phonon-scattering particles are dispersed within the matrix of a thermoelectric conversion material, is characterized by including the following stages: a first stage in which, in a solution, the reduction of a salt is used to precipitate out/grow nanoparticles consisting of elements constituting a thermoelectric conversion material, the polymerization of a precursor is used to precipitate out/grow nanoparticles consisting of an oxide constituting phonon-scattering particles, and a mixture of said nanoparticles is collected; and a second stage in which a hydrothermal treatment is used to alloy said mixture into composite nanoparticles, which are then sintered. This method for manufacturing a nanocomposite thermoelectric conversion material is also characterized in that in the aforementioned first stage, nanoparticles consisting of a first group of elements that constitute the thermoelectric conversion material are precipitated out or grown before nanoparticles consisting of oxides of a second group of elements that constitute the phonon-scattering particles.
Inventors:
MURAI JUNYA (JP)
KOGURE TOMONARI (JP)
KAWAI YOUICHIRO (JP)
OKAWAUCHI YOSHINORI (JP)
KOGURE TOMONARI (JP)
KAWAI YOUICHIRO (JP)
OKAWAUCHI YOSHINORI (JP)
Application Number:
PCT/JP2014/065868
Publication Date:
January 15, 2015
Filing Date:
June 16, 2014
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
ADMATECHS COMPANY LTD (JP)
ADMATECHS COMPANY LTD (JP)
International Classes:
B22F9/24; H01L35/34; B82Y40/00; H01L29/06; H01L35/16; H01L35/26
Foreign References:
| JPH06163996A | 1994-06-10 | |||
| JP2003533363A | 2003-11-11 | |||
| US20120152294A1 | 2012-06-21 | |||
| JP2011003741A | 2011-01-06 | |||
| JP2013074051A | 2013-04-22 |
Other References:
YOSHIO KOBAYASHI ET AL.: "Silica coating of silver nanoparticles using a modified Stoeber method", JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol. 283, 2005, pages 392 - 396, XP004753414, DOI: doi:10.1016/j.jcis.2004.08.184
RENJIS T. TOM ET AL.: "Freely Dispersible Au@Ti02, Au@Zi02, Ag@Ti02, and Ag@Zr02 Core- Shell Nanoparticles: One-Step Synthesis, Characterization, Spectroscopy, and Optical Limiting Properties", LANGMUIR, vol. 19, 2003, pages 3439 - 3445, XP002586209, DOI: doi:10.1021/la0266435
RENJIS T. TOM ET AL.: "Freely Dispersible Au@Ti02, Au@Zi02, Ag@Ti02, and Ag@Zr02 Core- Shell Nanoparticles: One-Step Synthesis, Characterization, Spectroscopy, and Optical Limiting Properties", LANGMUIR, vol. 19, 2003, pages 3439 - 3445, XP002586209, DOI: doi:10.1021/la0266435
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
Aoki 篤 (JP)
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