Development of Al2O3-ZnO/Ca3Co 4O9 module for thermoelectric power generation

Paolo Mele; Kaname Matsumoto; Takeshi Azuma; Keita Kamesawa; Saburo Tanaka; Jun Ichiro Kurosaki; Koji Miyazaki

doi:10.1557/proc-1166-n03-23

Development of Al₂O₃-ZnO/Ca₃Co ₄O₉ module for thermoelectric power generation

Paolo Mele, Kaname Matsumoto, Takeshi Azuma, Keita Kamesawa, Saburo Tanaka, Jun Ichiro Kurosaki, Koji Miyazaki

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

11 Citations (Scopus)

Abstract

Pure and Al₂O₃ (2%, 5%, 8%) doped sintered ZnO (n-type) and pure sintered Ca₃Co₄O₉ (p-type) pellets were prepared by conventional solid state synthesis starting from the oxides. The sintered pellets were cut by a diamond saw in a pillar shape (15 mm X 5 mm X 5 mm) for physical properties measurements. The best doped sample was 2 % Al₂O₃ ZnO showing Seebeck coefficient S = -180 mV/K and electrical conductivity σ = 8 S/cm at 400°C, while thermal conductivity κ = 1.8 W/mxK at 600°C. Typical values for Ca ₃Co₄O₉ were S = 82.5 mV/K and σ = 125 S/cm at 800°C, while κ = 1.01 W/m X K at 600°C. Several modules fabricated by elements cut from sintered pellets were tested and the best performance was obtained in the module formed by six 2 % Al₂O ₃-ZnO/ Ca₃Co₄O₉ couples, that generated an output power P = 3.7 X 10^-5 W at 500°C (when, ΔT = 260°C).

Original language	English
Title of host publication	Materials and Devices for Thermal-to-Electric Energy Conversion
Publisher	Materials Research Society
Pages	223-228
Number of pages	6
ISBN (Print)	9781605111391
DOIs	https://doi.org/10.1557/proc-1166-n03-23
Publication status	Published - 2009
Externally published	Yes
Event	2009 MRS Spring Meeting: Materials and Devices for Thermal-to-Electric Energy Conversion - San Francisco, CA, United States Duration: 2009 Apr 13 → 2009 Apr 17

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1166
ISSN (Print)	0272-9172

Other

Other	2009 MRS Spring Meeting: Materials and Devices for Thermal-to-Electric Energy Conversion
Country/Territory	United States
City	San Francisco, CA
Period	09/4/13 → 09/4/17

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1557/proc-1166-n03-23

Cite this

Mele, P., Matsumoto, K., Azuma, T., Kamesawa, K., Tanaka, S., Kurosaki, J. I., & Miyazaki, K. (2009). Development of Al₂O₃-ZnO/Ca₃Co ₄O₉ module for thermoelectric power generation. In Materials and Devices for Thermal-to-Electric Energy Conversion (pp. 223-228). (Materials Research Society Symposium Proceedings; Vol. 1166). Materials Research Society. https://doi.org/10.1557/proc-1166-n03-23

Development of Al₂O₃-ZnO/Ca₃Co ₄O₉ module for thermoelectric power generation. / Mele, Paolo; Matsumoto, Kaname; Azuma, Takeshi et al.

Materials and Devices for Thermal-to-Electric Energy Conversion. Materials Research Society, 2009. p. 223-228 (Materials Research Society Symposium Proceedings; Vol. 1166).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Mele, P, Matsumoto, K, Azuma, T, Kamesawa, K, Tanaka, S, Kurosaki, JI & Miyazaki, K 2009, Development of Al₂O₃-ZnO/Ca₃Co ₄O₉ module for thermoelectric power generation. in Materials and Devices for Thermal-to-Electric Energy Conversion. Materials Research Society Symposium Proceedings, vol. 1166, Materials Research Society, pp. 223-228, 2009 MRS Spring Meeting: Materials and Devices for Thermal-to-Electric Energy Conversion, San Francisco, CA, United States, 09/4/13. https://doi.org/10.1557/proc-1166-n03-23

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abstract = "Pure and Al2O3 (2%, 5%, 8%) doped sintered ZnO (n-type) and pure sintered Ca3Co4O9 (p-type) pellets were prepared by conventional solid state synthesis starting from the oxides. The sintered pellets were cut by a diamond saw in a pillar shape (15 mm X 5 mm X 5 mm) for physical properties measurements. The best doped sample was 2 % Al2O3 ZnO showing Seebeck coefficient S = -180 mV/K and electrical conductivity σ = 8 S/cm at 400°C, while thermal conductivity κ = 1.8 W/mxK at 600°C. Typical values for Ca 3Co4O9 were S = 82.5 mV/K and σ = 125 S/cm at 800°C, while κ = 1.01 W/m X K at 600°C. Several modules fabricated by elements cut from sintered pellets were tested and the best performance was obtained in the module formed by six 2 % Al2O 3-ZnO/ Ca3Co4O9 couples, that generated an output power P = 3.7 X 10-5 W at 500°C (when, ΔT = 260°C).",

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