Power generation characteristics of oxide thermoelectric modules incorporating nanostructured ZnO sintered materials

Takeshi Souma; Michitaka Ohtaki; Kyohei Ohnishi; Masayuki Shigeno; Yasuhiro Ohba; Toshitada Shimozaki

doi:10.1109/ICT.2007.4569418

Power generation characteristics of oxide thermoelectric modules incorporating nanostructured ZnO sintered materials

Takeshi Souma, Michitaka Ohtaki, Kyohei Ohnishi, Masayuki Shigeno, Yasuhiro Ohba, Toshitada Shimozaki

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

10 Citations (Scopus)

Abstract

A practical oxide thermoelectric module consisting of 12 pairs of p-NaCo₂O₄ and nanostructured n-ZnO sintered materials was successfully fabricated by using a diffusion welding technique. By applying a nanostructure using a void forming agency (VFA), the electrical conductivity of the n-ZnO sintered materials were drastically enhanced, leading that the power factor of the materials were dramatically improved. It is revealed that the oxide module can be operated up to 930 K on the hot side temperature. A maximum power output of 52.5 mW was achieved at the temperature condition of T _H/T_L = 934/479 K, where T_H and T_L are temperatures at the hot and cold sides of the module, respectively. The details of the power generation characteristics of the present oxide module will be presented and the performance will be discussed with those of our previous and other oxide modules.

Original language	English
Title of host publication	Proceedings ICT'07 - 26th International Conference on Thermoelectrics
Pages	38-41
Number of pages	4
DOIs	https://doi.org/10.1109/ICT.2007.4569418
Publication status	Published - 2007
Event	ICT'07 - 26th International Conference on Thermoelectrics - Jeju, Korea, Republic of Duration: Jun 3 2007 → Jun 7 2007

Publication series

Name	International Conference on Thermoelectrics, ICT, Proceedings

Other

Other	ICT'07 - 26th International Conference on Thermoelectrics
Country	Korea, Republic of
City	Jeju
Period	6/3/07 → 6/7/07

All Science Journal Classification (ASJC) codes

Engineering(all)

Access to Document

10.1109/ICT.2007.4569418

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Souma, T., Ohtaki, M., Ohnishi, K., Shigeno, M., Ohba, Y., & Shimozaki, T. (2007). Power generation characteristics of oxide thermoelectric modules incorporating nanostructured ZnO sintered materials. In Proceedings ICT'07 - 26th International Conference on Thermoelectrics (pp. 38-41). [4569418] (International Conference on Thermoelectrics, ICT, Proceedings). https://doi.org/10.1109/ICT.2007.4569418

Power generation characteristics of oxide thermoelectric modules incorporating nanostructured ZnO sintered materials. / Souma, Takeshi; Ohtaki, Michitaka; Ohnishi, Kyohei; Shigeno, Masayuki; Ohba, Yasuhiro; Shimozaki, Toshitada.

Proceedings ICT'07 - 26th International Conference on Thermoelectrics. 2007. p. 38-41 4569418 (International Conference on Thermoelectrics, ICT, Proceedings).

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

Souma, T, Ohtaki, M, Ohnishi, K, Shigeno, M, Ohba, Y & Shimozaki, T 2007, Power generation characteristics of oxide thermoelectric modules incorporating nanostructured ZnO sintered materials. in Proceedings ICT'07 - 26th International Conference on Thermoelectrics., 4569418, International Conference on Thermoelectrics, ICT, Proceedings, pp. 38-41, ICT'07 - 26th International Conference on Thermoelectrics, Jeju, Korea, Republic of, 6/3/07. https://doi.org/10.1109/ICT.2007.4569418

Souma T, Ohtaki M, Ohnishi K, Shigeno M, Ohba Y, Shimozaki T. Power generation characteristics of oxide thermoelectric modules incorporating nanostructured ZnO sintered materials. In Proceedings ICT'07 - 26th International Conference on Thermoelectrics. 2007. p. 38-41. 4569418. (International Conference on Thermoelectrics, ICT, Proceedings). https://doi.org/10.1109/ICT.2007.4569418

Souma, Takeshi ; Ohtaki, Michitaka ; Ohnishi, Kyohei ; Shigeno, Masayuki ; Ohba, Yasuhiro ; Shimozaki, Toshitada. / Power generation characteristics of oxide thermoelectric modules incorporating nanostructured ZnO sintered materials. Proceedings ICT'07 - 26th International Conference on Thermoelectrics. 2007. pp. 38-41 (International Conference on Thermoelectrics, ICT, Proceedings).

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title = "Power generation characteristics of oxide thermoelectric modules incorporating nanostructured ZnO sintered materials",

abstract = "A practical oxide thermoelectric module consisting of 12 pairs of p-NaCo2O4 and nanostructured n-ZnO sintered materials was successfully fabricated by using a diffusion welding technique. By applying a nanostructure using a void forming agency (VFA), the electrical conductivity of the n-ZnO sintered materials were drastically enhanced, leading that the power factor of the materials were dramatically improved. It is revealed that the oxide module can be operated up to 930 K on the hot side temperature. A maximum power output of 52.5 mW was achieved at the temperature condition of T H/TL = 934/479 K, where TH and TL are temperatures at the hot and cold sides of the module, respectively. The details of the power generation characteristics of the present oxide module will be presented and the performance will be discussed with those of our previous and other oxide modules.",

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AU - Shimozaki, Toshitada

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