Electrochemical oxidation in a CH4-H2O system at the interface of a Pt electrode and Y2O3-stabilized ZrO2 electrolyte: I. Determination of the predominant reaction process

Shigenori Onuma; Atsushi Kaimai; Ken Ichi Kawamura; Yutaka Nigara; Tatsuya Kawada; Junichiro Mizusaki; Hideaki Inaba; Hiroaki Tagawa

doi:10.1149/1.1838367

Electrochemical oxidation in a CH₄-H₂O system at the interface of a Pt electrode and Y₂O₃-stabilized ZrO₂ electrolyte: I. Determination of the predominant reaction process

Shigenori Onuma, Atsushi Kaimai, Ken Ichi Kawamura, Yutaka Nigara, Tatsuya Kawada, Junichiro Mizusaki, Hideaki Inaba, Hiroaki Tagawa

ENV - Environmental Studies for Advanced Society

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

24 Citations (Scopus)

Abstract

In order to elucidate the electrochemical reaction in a CH₄-H₂O system at the interface of a porous Pt electrode/Y₂O₃-stabilized ZrO₂ electrolyte, measurements were made on the gas composition before and after the reaction under direct-current polarization and on electrochemical impedance spectra at 1073 K. The dominant electrochemical reaction was found to be the redox process of H₂/H₂O where H₂ and CO were generated by the steam reforming in a CH₄-H₂O system. The polarization curves showed good agreement with the model reported by Mizusaki et al. for a H₂-H₂O system.

Original language	English
Pages (from-to)	920-925
Number of pages	6
Journal	Journal of the Electrochemical Society
Volume	145
Issue number	3
DOIs	https://doi.org/10.1149/1.1838367
Publication status	Published - 1998 Mar

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1149/1.1838367

Cite this

Onuma, S., Kaimai, A., Kawamura, K. I., Nigara, Y., Kawada, T., Mizusaki, J., Inaba, H., & Tagawa, H. (1998). Electrochemical oxidation in a CH₄-H₂O system at the interface of a Pt electrode and Y₂O₃-stabilized ZrO₂ electrolyte: I. Determination of the predominant reaction process. Journal of the Electrochemical Society, 145(3), 920-925. https://doi.org/10.1149/1.1838367

Electrochemical oxidation in a CH₄-H₂O system at the interface of a Pt electrode and Y₂O₃-stabilized ZrO₂ electrolyte : I. Determination of the predominant reaction process. / Onuma, Shigenori; Kaimai, Atsushi; Kawamura, Ken Ichi et al.

In: Journal of the Electrochemical Society, Vol. 145, No. 3, 03.1998, p. 920-925.

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

Onuma, S, Kaimai, A, Kawamura, KI, Nigara, Y, Kawada, T, Mizusaki, J, Inaba, H & Tagawa, H 1998, 'Electrochemical oxidation in a CH₄-H₂O system at the interface of a Pt electrode and Y₂O₃-stabilized ZrO₂ electrolyte: I. Determination of the predominant reaction process', Journal of the Electrochemical Society, vol. 145, no. 3, pp. 920-925. https://doi.org/10.1149/1.1838367

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abstract = "In order to elucidate the electrochemical reaction in a CH4-H2O system at the interface of a porous Pt electrode/Y2O3-stabilized ZrO2 electrolyte, measurements were made on the gas composition before and after the reaction under direct-current polarization and on electrochemical impedance spectra at 1073 K. The dominant electrochemical reaction was found to be the redox process of H2/H2O where H2 and CO were generated by the steam reforming in a CH4-H2O system. The polarization curves showed good agreement with the model reported by Mizusaki et al. for a H2-H2O system.",

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