Mixed Protonic-Electronic Conduction Properties of SrZr0.9−xY0.1RuxO3−α

Hiroshige MATSUMOTO; Tetsuo SHIMURA; Tohru HIGUCHI; Takanori OTAKE; Yusuke SASAKI; Keiji YASHIRO; Atsushi KAIMAI; Tatsuya KAWADA; Junichiro MIZUSAKI

doi:10.5796/electrochemistry.72.861

Communications

Mixed Protonic-Electronic Conduction Properties of SrZr_0.9−_xY_0.1Ru_xO₃₋_α

Hiroshige MATSUMOTO, Tetsuo SHIMURA, Tohru HIGUCHI, Takanori OTAKE, Yusuke SASAKI, Keiji YASHIRO, Atsushi KAIMAI, Tatsuya KAWADA, Junichiro MIZUSAKI

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Keywords: Hydrogen Separation, Hydrogen Permeation, Mixed Conductor, Proton, Perovskite, X-ray Absorption

JOURNAL FREE ACCESS

2004 Volume 72 Issue 12 Pages 861-864

DOI https://doi.org/10.5796/electrochemistry.72.861

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Abstract

Protonic-electronic mixed-conducting properties have been investigated for SrZr_0.9−_xY_0.1Ru_xO₃₋_α (x = 0.05 − 0.125) at elevated temperatures. Hydrogen permeation was actually observed with respect to the ambipolar diffusion, ensuring the ionic-electronic mixed conduction in the materials. The mixed-conducting mechanism is revealed by electrochemical and spectroscopic measurements.

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