Thermoelectric Properties of Cesium–Graphite Intercalation Compounds
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- Matsumoto Rika
- Faculty of Engineering, Tokyo Polytechnic University
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- Akuzawa Noboru
- Department of Chemical Science and Engineering, Tokyo National College of Technology
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- Takahashi Yoichi
- Department of Applied Chemistry, Chuo University
書誌事項
- タイトル別名
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- Thermoelectric Properties of Cesium–Graphite Intercalation Compounds
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The thermoelectric properties of cesium–graphite intercalation compounds (Cs-GICs) and some other GICs were studied. The electrical conductivities of the Cs-GICs prepared from Grafoil were around 106 Ω−1 m−1, about 10 times higher than that of the host graphite, and the thermal conductivities were 50–100 Wm−1 K−1, about 1/4–1/2 of that of the host graphite. While the Seebeck coefficient of the host graphite was nearly zero, those of the Cs-GICs were found to be around −30 μV K−1. These properties were determined also for the Cs-GICs prepared from well-oriented PGS graphite sheets. Consequently, the figures of merit of the Cs-GICs were of the order of 10−5 K−1, approximately 105 times higher than that of the host graphite. The power factor of the Cs-GICs reached the order of 10−3 Wm−1 K−2, with the best datum at 6.5×10−3 Wm−1 K−2. The carrier density of the GICs increased as the concentration of intercalated species increased, whereas their lattice thermal conductivities decreased. It is suggested that highly concentrated GICs might be promising candidate thermoelectric materials.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 47 (6), 1458-1463, 2006
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282679227446912
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- NII論文ID
- 130004453154
- 10018160256
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 7950605
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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