Electrochemical Preparation of an Au Oxide Electrode and Its Application to Electro-Oxidation of Heterocycles Thiazole

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Title:	Electrochemical Preparation of an Au Oxide Electrode and Its Application to Electro-Oxidation of Heterocycles Thiazole
Authors:	Wang, Lai-Hao Jhang, Kai-Bo
Contributors:	醫藥化學系
Keywords:	Electro-Synthesis Au Oxide Electrode Heterocycles Thiazole
Date:	2012-12
Issue Date:	2014-03-21 16:12:04 (UTC+8)
Publisher:	Electrochemical Soc Japan
Abstract:	The growth and properties of Au oxide films formed on an Au electrode in a 0.1-1.0 M NaOH solution were investigated using potentiostatic and cyclic voltammetric techniques. Scanning electron microscopy images showed the structure of an Au oxide film on an Au electrode at various oxidation potentials: 1.5, 2.0, 2.5, and 3.0V. The Au oxide electrode was used to determine oxidation potential of heterocycles thiazole in phosphate buffer (pH 2.21). The potential peaked at 0.54V for rhodanine, 0.40 V for thiazolidine-2,4-dione, 0.47V for thiazolidine, and 0.48 V for L(-)-thiazolidine-4-carboxylic acid. Compared with the results obtained from an Au oxide electrode, the peak potential of heterocycles thiazole was less positive and the peak current 3-15 times higher than that of the peak potential found using a bare gold electrode. (C) The Electrochemical Society of Japan, All rights reserved.
Relation:	Electrochemistry, 80(12), 968-973
Appears in Collections:	[Dept. of Food & Drug Industry and Inspective Technology] Periodical Articles

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