Two–step processing of thermoelectric (Ca                         0.9                         Ag                         0.1                         )                         3                         Co                         4                         O                         9                         /nano–sized Ag composites with high ZT

Zongmo Shi; Feng Gao; Jie Xu; Jihong Zhu; Yi Zhang; Tong Gao; Mengjie Qin; Mike Reece; Haixue Yan

doi:10.1016/j.jeurceramsoc.2019.04.004

Two–step processing of thermoelectric (Ca _0.9 Ag _0.1 ) ₃ Co ₄ O ₉ /nano–sized Ag composites with high ZT

Zongmo Shi, Feng Gao, Jie Xu, Jihong Zhu, Yi Zhang, Tong Gao, Mengjie Qin, Mike Reece, Haixue Yan

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

A two–step processing method, spark plasma sintering (SPS) combined with a heat–treatment, was used to fabricate (Ca _0.9 Ag _0.1 ) ₃ Co ₄ O ₉ /nano–sized Ag composites. Sliver within the lattice generated hole carriers, and silver along the grain boundaries improved the transport path of the charge carriers. Samples sintered using SPS at different temperatures had very different thermoelectric properties. The results showed that when the sample was sintered at 1233 K, the maximum power factor reached 0.43 mW/(m·K ² ) along with an electrical resistivity of 8.61 mΩ·cm and a Seebeck coefficient of 196.90 μV/K, and the corresponding lattice thermal conductivity was 1.86 W/(m·K). This study shows how to improve the properties and broaden the application of Ca ₃ Co ₄ O ₉ thermoelectric ceramics.

Original language	English
Pages (from-to)	3088-3093
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	39
Issue number	10
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2019.04.004
State	Published - Aug 2019

Keywords

Ca Co O
High ZT value
Thermoelectric properties
Two–step processing

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10.1016/j.jeurceramsoc.2019.04.004

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Shi, Z., Gao, F., Xu, J., Zhu, J., Zhang, Y., Gao, T., Qin, M., Reece, M., & Yan, H. (2019). Two–step processing of thermoelectric (Ca _0.9 Ag _0.1 ) ₃ Co ₄ O ₉ /nano–sized Ag composites with high ZT Journal of the European Ceramic Society, 39(10), 3088-3093. https://doi.org/10.1016/j.jeurceramsoc.2019.04.004

Shi, Zongmo ; Gao, Feng ; Xu, Jie et al. / Two–step processing of thermoelectric (Ca _0.9 Ag _0.1 ) ₃ Co ₄ O ₉ /nano–sized Ag composites with high ZT In: Journal of the European Ceramic Society. 2019 ; Vol. 39, No. 10. pp. 3088-3093.

@article{16f8cfbc76ad42c4846e241172a970c7,

title = " Two–step processing of thermoelectric (Ca 0.9 Ag 0.1 ) 3 Co 4 O 9 /nano–sized Ag composites with high ZT ",

abstract = " A two–step processing method, spark plasma sintering (SPS) combined with a heat–treatment, was used to fabricate (Ca 0.9 Ag 0.1 ) 3 Co 4 O 9 /nano–sized Ag composites. Sliver within the lattice generated hole carriers, and silver along the grain boundaries improved the transport path of the charge carriers. Samples sintered using SPS at different temperatures had very different thermoelectric properties. The results showed that when the sample was sintered at 1233 K, the maximum power factor reached 0.43 mW/(m·K 2 ) along with an electrical resistivity of 8.61 mΩ·cm and a Seebeck coefficient of 196.90 μV/K, and the corresponding lattice thermal conductivity was 1.86 W/(m·K). This study shows how to improve the properties and broaden the application of Ca 3 Co 4 O 9 thermoelectric ceramics.",

keywords = "Ca Co O, High ZT value, Thermoelectric properties, Two–step processing",

author = "Zongmo Shi and Feng Gao and Jie Xu and Jihong Zhu and Yi Zhang and Tong Gao and Mengjie Qin and Mike Reece and Haixue Yan",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

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doi = "10.1016/j.jeurceramsoc.2019.04.004",

language = "英语",

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Shi, Z, Gao, F , Xu, J , Zhu, J, Zhang, Y, Gao, T, Qin, M, Reece, M & Yan, H 2019, ' Two–step processing of thermoelectric (Ca _0.9 Ag _0.1 ) ₃ Co ₄ O ₉ /nano–sized Ag composites with high ZT ', Journal of the European Ceramic Society, vol. 39, no. 10, pp. 3088-3093. https://doi.org/10.1016/j.jeurceramsoc.2019.04.004

Two–step processing of thermoelectric (Ca _0.9 Ag _0.1 ) ₃ Co ₄ O ₉ /nano–sized Ag composites with high ZT . / Shi, Zongmo; Gao, Feng ; Xu, Jie et al.
In: Journal of the European Ceramic Society, Vol. 39, No. 10, 08.2019, p. 3088-3093.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Two–step processing of thermoelectric (Ca 0.9 Ag 0.1 ) 3 Co 4 O 9 /nano–sized Ag composites with high ZT

AU - Shi, Zongmo

AU - Gao, Feng

AU - Xu, Jie

AU - Zhu, Jihong

AU - Zhang, Yi

AU - Gao, Tong

AU - Qin, Mengjie

AU - Reece, Mike

AU - Yan, Haixue

PY - 2019/8

Y1 - 2019/8

N2 - A two–step processing method, spark plasma sintering (SPS) combined with a heat–treatment, was used to fabricate (Ca 0.9 Ag 0.1 ) 3 Co 4 O 9 /nano–sized Ag composites. Sliver within the lattice generated hole carriers, and silver along the grain boundaries improved the transport path of the charge carriers. Samples sintered using SPS at different temperatures had very different thermoelectric properties. The results showed that when the sample was sintered at 1233 K, the maximum power factor reached 0.43 mW/(m·K 2 ) along with an electrical resistivity of 8.61 mΩ·cm and a Seebeck coefficient of 196.90 μV/K, and the corresponding lattice thermal conductivity was 1.86 W/(m·K). This study shows how to improve the properties and broaden the application of Ca 3 Co 4 O 9 thermoelectric ceramics.

AB - A two–step processing method, spark plasma sintering (SPS) combined with a heat–treatment, was used to fabricate (Ca 0.9 Ag 0.1 ) 3 Co 4 O 9 /nano–sized Ag composites. Sliver within the lattice generated hole carriers, and silver along the grain boundaries improved the transport path of the charge carriers. Samples sintered using SPS at different temperatures had very different thermoelectric properties. The results showed that when the sample was sintered at 1233 K, the maximum power factor reached 0.43 mW/(m·K 2 ) along with an electrical resistivity of 8.61 mΩ·cm and a Seebeck coefficient of 196.90 μV/K, and the corresponding lattice thermal conductivity was 1.86 W/(m·K). This study shows how to improve the properties and broaden the application of Ca 3 Co 4 O 9 thermoelectric ceramics.

KW - Ca Co O

KW - High ZT value

KW - Thermoelectric properties

KW - Two–step processing

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SN - 0955-2219

VL - 39

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JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 10

ER -

Shi Z, Gao F , Xu J , Zhu J, Zhang Y, Gao T et al. Two–step processing of thermoelectric (Ca _0.9 Ag _0.1 ) ₃ Co ₄ O ₉ /nano–sized Ag composites with high ZT Journal of the European Ceramic Society. 2019 Aug;39(10):3088-3093. doi: 10.1016/j.jeurceramsoc.2019.04.004

Two–step processing of thermoelectric (Ca _0.9 Ag _0.1 ) ₃ Co ₄ O ₉ /nano–sized Ag composites with high ZT

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Keywords

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