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KMID : 1059519930370040401
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Journal of the Korean Chemical Society
1993 Volume.37 No. 4 p.401 ~ p.407
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Studies on the Electrochemical Properties of TiO2-x Thin Films Prepared by Air Oxidation and Water Vapor Oxidation
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Choi Yong-Kook
Chjo Ki-Hyung
Choi Q-Won
Seong Jeong-Sub
Oh Jeong-Geun
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Abstract
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The titanium oxide thin films were prepared by air oxidation and water vapor oxidation. The electrochemical properties of the electrodes were studied in 1M NaOH solution. The peak potentials of oxygen reduction from cyclic voltammogram techniques were observed at aroung -0.9 ∼ -1.0 V vs. SCE and the reaction was totally irreversible process. The electrochemical properties of titanium dioxide electrodes prepared by water vapor oxidation exhibited different from the air oxidized electrodes, but it was similar to single crystal TiO2. The peak potentials of oxygen reduction were observed at slightly more positive than flat band potentials and depended on pH.
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