Preparation of Single-Phase Pb-Filled Chevrel-Phase Sulfide and Its Thermoelectric Properties
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- Nishiate Hirotaka
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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- Ohta Michihiro
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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- Yamamoto Atsushi
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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- Obara Haruhiko
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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- Lee Chul-Ho
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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- Ueno Kazuo
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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Abstract
Pb-filled Chevrel-phase sulfides PbMo6S8−y were prepared from PbS, Mo, and MoS2. The single phase was formed in the nominal composition PbMo6S7.8 (8−y=7.8). While the secondary PbS and Mo phases were formed in sulfur-poor compositions, the secondary MoS2 phase was formed in sulfur-rich compositions. The sintered sample had a positive Seebeck coefficient. The Seebeck coefficient and electrical resistivity increased with temperature. Furthermore, the thermal conductivity was dominated by the electronic thermal conductivity, and the complex crystal structure yielded a low lattice thermal conductivity. The thermoelectric figure of merit ZT increased with temperature, reaching a value of 0.08 at 850 K.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 52 (8), 1535-1538, 2011
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390001204250148992
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- NII Article ID
- 10029297392
- 130004454794
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 11181831
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed