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 proceedingConference contribution

    9 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/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.

    Original languageEnglish
    Title of host publicationProceedings ICT'07 - 26th International Conference on Thermoelectrics
    Pages38-41
    Number of pages4
    DOIs
    Publication statusPublished - Dec 1 2007
    EventICT'07 - 26th International Conference on Thermoelectrics - Jeju, Korea, Republic of
    Duration: Jun 3 2007Jun 7 2007

    Publication series

    NameInternational Conference on Thermoelectrics, ICT, Proceedings

    Other

    OtherICT'07 - 26th International Conference on Thermoelectrics
    CountryKorea, Republic of
    CityJeju
    Period6/3/076/7/07

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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  • Cite this

    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