Porous YSZ as a surface oxygen potential probe on polarized electrodes

T. Kawada, B. A. van Hassel, T. Horita, N. Sakai, H. Yokokawa, M. Dokiya

研究成果: ジャーナルへの寄稿学術論文査読

13 被引用数 (Scopus)

抄録

A new technique was proposed to study the kinetics of high-temperature electrode reactions. A "porous" zirconia oxygen sensor (POS) was placed on a polarized working electrode, and the oxygen potential was detected on the surface. Its deviation from the gas phase gave information about the reaction between the gas phase and the absorbed species. Several metal electrodes were examined in O2Ar or H2H2OAr atmospheres, and the POS responses were compared. Evidence of a large contribution of the surface reaction to the electrode polarization was observed in some cases, e.g. oxygen on a Pt paste electrode at low temperature, and hydrogen oxidation reaction on a Ni wire electrode. The potentiality of this method for the study of electrode kinetics and surface reactions is demonstrated.

本文言語英語
ページ(範囲)65-71
ページ数7
ジャーナルSolid State Ionics
70-71
PART 1
DOI
出版ステータス出版済み - 1994

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