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Performance of palladium electrode for electrochemical hydrogen pump using strontium-zirconate-based proton conductors

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Abstract

An electrode design with no use of three-phase boundary was investigated using palladium electrode. The hydrogen evolution rate of the palladium electrode cell using SrZr0.9Y0.1O3 − α electrolyte followed Faraday’s law up to 180 mA cm−2, and the anode and cathode overpotentials were significantly lower than those of a platinum electrode cell, suggesting that the palladium electrode is effective to improve the performance of the hydrogen-pumping cell using SrZrO3-based electrolyte. The rate-determining step (RDS) for electrode reaction was also investigated by changing the electrode morphology and hydrogen partial pressure, and it was suggested that the RDS of the anode is a reaction at electrode/electrolyte interface.

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Authors and Affiliations

  1. Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan

    Takaaki Sakai, Hiroshige Matsumoto, Reiri Yamamoto, Sachio Okada & Tatsumi Ishihara

  2. Environmental Technology Research Division, INAMORI Frontier Research Center, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan

    Hiroshige Matsumoto

  3. Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan

    Hiroshige Matsumoto & Tatsumi Ishihara

  4. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan

    Takao Kudo

  5. Department of Materials Science, Graduate School of Engineering, Tohoku University, 6-6-02, Aramaki Aza Aoba, Aoba-ku, Sendai, 980-8579, Japan

    Masato Watanabe, Shin-ichi Hashimoto & Hitoshi Takamura

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  1. Takaaki Sakai
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  2. Hiroshige Matsumoto
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  4. Takao Kudo
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  7. Shin-ichi Hashimoto
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  9. Tatsumi Ishihara
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Correspondence to Takaaki Sakai or Hiroshige Matsumoto.

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Sakai, T., Matsumoto, H., Yamamoto, R. et al. Performance of palladium electrode for electrochemical hydrogen pump using strontium-zirconate-based proton conductors. Ionics 15, 665–670 (2009). https://doi.org/10.1007/s11581-009-0365-x

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  • DOI: https://doi.org/10.1007/s11581-009-0365-x

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