Effect of 3d-transition metal substitution on the thermoelectric properties of the misfit-layered cobalt oxide [Ca2CoO3]pCoO2

Y. Miyazaki; Y. Suzuki; T. Miura; Y. Ono; T. Kajitani

doi:10.1109/ICT.2003.1287484

Effect of 3d-transition metal substitution on the thermoelectric properties of the misfit-layered cobalt oxide [Ca₂CoO₃]_pCoO₂

Y. Miyazaki, Y. Suzuki, T. Miura, Y. Ono, T. Kajitani

工学研究科・応用物理学専攻

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

The 3d-transition metal (M) substitution has been performed on the cobalt site in the rock-salt (RS)-type [Ca₂CoO₃] subsystem of misfit-layered cobalt oxide [Ca₂(Co_1-xM_x)O₃]_pCoO₂. Except for M = V, Ni and Zn, the solid solution has been prepared up to x ∼ 0.10, when the mixed powders of starting materials were sintered at 1193 K. The Cu-substituted samples exhibit larger thermoelectric power (S) and lower resistivity (ρ) relative to the non-doped one. For example, the sample with x = 0.10 shows S = 160 μVK^-1 and ρ = 9.1 mΩcm at 290 K and the resulting thermoelectric power factor reaches S²/ρ = 2.8 × 10^-4 Wm^-1K^-2, being almost twice larger than that of [Ca₂CoO₃]_pCoO₂.

本文言語	English
ホスト出版物のタイトル	Proceedings ICT 2003 - 22nd International Conference on Thermoelectrics
出版社	Institute of Electrical and Electronics Engineers Inc.
ページ	203-206
ページ数	4
ISBN（電子版）	078038301X
DOI	https://doi.org/10.1109/ICT.2003.1287484
出版ステータス	Published - 2003
イベント	22nd International Conference on Thermoelectrics, ICT 2003 - La Grande Motte, France 継続期間: 2003 8月 17 → 2003 8月 21

出版物シリーズ

名前	International Conference on Thermoelectrics, ICT, Proceedings
巻	2003-January

Other

Other	22nd International Conference on Thermoelectrics, ICT 2003
国/地域	France
City	La Grande Motte
Period	03/8/17 → 03/8/21

ASJC Scopus subject areas

凝縮系物理学
電子工学および電気工学

文献へのアクセス

10.1109/ICT.2003.1287484

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引用スタイル

Miyazaki, Y., Suzuki, Y., Miura, T., Ono, Y., & Kajitani, T. (2003). Effect of 3d-transition metal substitution on the thermoelectric properties of the misfit-layered cobalt oxide [Ca₂CoO₃]_pCoO₂. In Proceedings ICT 2003 - 22nd International Conference on Thermoelectrics (pp. 203-206). [1287484] (International Conference on Thermoelectrics, ICT, Proceedings; Vol. 2003-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICT.2003.1287484

Effect of 3d-transition metal substitution on the thermoelectric properties of the misfit-layered cobalt oxide [Ca₂CoO₃]_pCoO₂. / Miyazaki, Y.; Suzuki, Y.; Miura, T. その他.
Proceedings ICT 2003 - 22nd International Conference on Thermoelectrics. Institute of Electrical and Electronics Engineers Inc., 2003. p. 203-206 1287484 (International Conference on Thermoelectrics, ICT, Proceedings; Vol. 2003-January).

研究成果: Conference contribution

Miyazaki, Y, Suzuki, Y, Miura, T, Ono, Y & Kajitani, T 2003, Effect of 3d-transition metal substitution on the thermoelectric properties of the misfit-layered cobalt oxide [Ca₂CoO₃]_pCoO₂. in Proceedings ICT 2003 - 22nd International Conference on Thermoelectrics., 1287484, International Conference on Thermoelectrics, ICT, Proceedings, vol. 2003-January, Institute of Electrical and Electronics Engineers Inc., pp. 203-206, 22nd International Conference on Thermoelectrics, ICT 2003, La Grande Motte, France, 03/8/17. https://doi.org/10.1109/ICT.2003.1287484

Miyazaki Y, Suzuki Y, Miura T, Ono Y, Kajitani T. Effect of 3d-transition metal substitution on the thermoelectric properties of the misfit-layered cobalt oxide [Ca₂CoO₃]_pCoO₂. In Proceedings ICT 2003 - 22nd International Conference on Thermoelectrics. Institute of Electrical and Electronics Engineers Inc. 2003. p. 203-206. 1287484. (International Conference on Thermoelectrics, ICT, Proceedings). doi: 10.1109/ICT.2003.1287484

Miyazaki, Y. ; Suzuki, Y. ; Miura, T. その他. / Effect of 3d-transition metal substitution on the thermoelectric properties of the misfit-layered cobalt oxide [Ca₂CoO₃]_pCoO₂. Proceedings ICT 2003 - 22nd International Conference on Thermoelectrics. Institute of Electrical and Electronics Engineers Inc., 2003. pp. 203-206 (International Conference on Thermoelectrics, ICT, Proceedings).

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abstract = "The 3d-transition metal (M) substitution has been performed on the cobalt site in the rock-salt (RS)-type [Ca2CoO3] subsystem of misfit-layered cobalt oxide [Ca2(Co1-xMx)O3]pCoO2. Except for M = V, Ni and Zn, the solid solution has been prepared up to x ∼ 0.10, when the mixed powders of starting materials were sintered at 1193 K. The Cu-substituted samples exhibit larger thermoelectric power (S) and lower resistivity (ρ) relative to the non-doped one. For example, the sample with x = 0.10 shows S = 160 μVK-1 and ρ = 9.1 mΩcm at 290 K and the resulting thermoelectric power factor reaches S2/ρ = 2.8 × 10-4 Wm-1K-2, being almost twice larger than that of [Ca2CoO3]pCoO2.",

keywords = "Cobalt, Electric resistance, Powders, Reactive power, Solids, Tellurium, Temperature measurement, Thermal conductivity, Thermoelectricity, X-ray scattering",

author = "Y. Miyazaki and Y. Suzuki and T. Miura and Y. Ono and T. Kajitani",

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N2 - The 3d-transition metal (M) substitution has been performed on the cobalt site in the rock-salt (RS)-type [Ca2CoO3] subsystem of misfit-layered cobalt oxide [Ca2(Co1-xMx)O3]pCoO2. Except for M = V, Ni and Zn, the solid solution has been prepared up to x ∼ 0.10, when the mixed powders of starting materials were sintered at 1193 K. The Cu-substituted samples exhibit larger thermoelectric power (S) and lower resistivity (ρ) relative to the non-doped one. For example, the sample with x = 0.10 shows S = 160 μVK-1 and ρ = 9.1 mΩcm at 290 K and the resulting thermoelectric power factor reaches S2/ρ = 2.8 × 10-4 Wm-1K-2, being almost twice larger than that of [Ca2CoO3]pCoO2.

AB - The 3d-transition metal (M) substitution has been performed on the cobalt site in the rock-salt (RS)-type [Ca2CoO3] subsystem of misfit-layered cobalt oxide [Ca2(Co1-xMx)O3]pCoO2. Except for M = V, Ni and Zn, the solid solution has been prepared up to x ∼ 0.10, when the mixed powders of starting materials were sintered at 1193 K. The Cu-substituted samples exhibit larger thermoelectric power (S) and lower resistivity (ρ) relative to the non-doped one. For example, the sample with x = 0.10 shows S = 160 μVK-1 and ρ = 9.1 mΩcm at 290 K and the resulting thermoelectric power factor reaches S2/ρ = 2.8 × 10-4 Wm-1K-2, being almost twice larger than that of [Ca2CoO3]pCoO2.

KW - Cobalt

KW - Electric resistance

KW - Powders

KW - Reactive power

KW - Solids

KW - Tellurium

KW - Temperature measurement

KW - Thermal conductivity

KW - Thermoelectricity

KW - X-ray scattering

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