Kinetics of oxygen reduction at RuO2-coated titanium electrode in alkaline solution

被引：0
作者：
C. -C. CHANG
T. -C. WEN
机构：
[1] National Cheng Kung University,Department of Chemical Engineering
来源：
Journal of Applied Electrochemistry | 1997年 / 27卷
关键词：
Thermal Decomposition; Cyclic Voltammetry; Ruthenium; Polarization Curve; Oxygen Reduction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Oxygen reduction at RuO2-coated titanium electrodes prepared by thermal decomposition was investigated by employing cyclic voltammetry and rotating-disc electrode techniques. Cyclic voltammetric results indicated that oxygen reduction was catalysed by at least some hydrous oxyruthenium species, (i.e., Ru(iii)) at low polarization range (E >−0.45V) and by at least some low oxide states of ruthenium species at high polarization (E<−0.45V). On the basis of measurements using a rotating disc electrode together with polarization curves, Tafel slopes and stoichiometric number determinations, two mechanisms for oxygen reduction on an RuO2-coated titanium electrode are proposed.
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页码：355 / 363
页数：8
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