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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 37, Number 12
JKCSEZ 37(12)
December 20, 1993

Title	Photo-Electrochemical Properties of TiO2 Electrodes Prepared by Anodic Oxidation 양극산화에 의해 제조된 TiO2 전극의 광전기화학적 성질
Author	Yong-Kook Choi, Soon-Ki Lee, Q-Won Choi, Jeong-Sub Seong, Ki-Hyung Chjo 최용국, 이순기, 최규원, 성정섭, 조기형
Keywords
Abstract	티타늄 금속판을 양극산화하여 제조한 TiO2 박막을 전극으로 사용하여 1M NaOH 용액에서 광전기화학적 성질을 연구하였다. TiO2 전극들의 flatband potential은 대략 -0.8V 정도로 이들 값은 단결정 TiO2에서 보다 0.2V만큼 양전위 방향으로 이동되어 나타났다. 순환 전압 전류법에 의한 산소의 환원전위는 SCE에 대해 -0.95V 근처에서 나타났으며, 반응은 전체적으로 비가역적으로 진행되었다. 또한 전극의 광전류는 단결정 TiO2에서 보다 더 단파장에서 나타났으며 전류밀도는 감소되었다. The titanium oxide thin films were prepared by anodic oxidation. The Photo-electrochemical properties of the electrodes were studied in 1 M NaOH solution. The flat band potentials of TiO2 electrodes prepared by anodic oxidation showed around -0.8V and the values were shifted 0.2V to the positive potential direction that of single crystal TiO2. Reduction potential of oxygen by cyclic voltammetry showed around -0.95V vs. SCE and these reactions were processed totally irreversible. The photocurrent of electrodes were showed shorter wavelength than that of single crystal TiO2 and its current density decreased.
Page	1010 - 1018
Full Text	PDF

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