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

Takaaki Sakai, Hiroshige Matsumoto, Reiri Yamamoto, Takao Kudo, Sachio Okada, Masato Watanabe, Shin ichi Hashimoto, Hitoshi Takamura, Tatsumi Ishihara

研究成果: Article査読

7 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)665-670
ページ数6
ジャーナルIonics
15
6
DOI
出版ステータスPublished - 2009 10 1

ASJC Scopus subject areas

  • 化学工学(全般)
  • 材料科学(全般)
  • 工学(全般)
  • 物理学および天文学(全般)

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