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

doi:10.1007/s11581-009-0365-x

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

Applied Chemistry

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

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 SrZr_0.9Y_0.1O_{3 - 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.

Original language	English
Pages (from-to)	665-670
Number of pages	6
Journal	Ionics
Volume	15
Issue number	6
DOIs	https://doi.org/10.1007/s11581-009-0365-x
Publication status	Published - Oct 2009

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Materials Science(all)
Engineering(all)
Physics and Astronomy(all)

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10.1007/s11581-009-0365-x

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title = "Performance of palladium electrode for electrochemical hydrogen pump using strontium-zirconate-based proton conductors",

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.",

author = "Takaaki Sakai and Hiroshige Matsumoto and Reiri Yamamoto and Takao Kudo and Sachio Okada and Masato Watanabe and Hashimoto, {Shin ichi} and Hitoshi Takamura and Tatsumi Ishihara",

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T1 - Performance of palladium electrode for electrochemical hydrogen pump using strontium-zirconate-based proton conductors

AU - Sakai, Takaaki

AU - Matsumoto, Hiroshige

AU - Yamamoto, Reiri

AU - Kudo, Takao

AU - Okada, Sachio

AU - Watanabe, Masato

AU - Hashimoto, Shin ichi

AU - Takamura, Hitoshi

AU - Ishihara, Tatsumi

PY - 2009/10

Y1 - 2009/10

N2 - 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.

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

Abstract

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