Ethylene glycol electrochemical oxidation at platinum probed by ion chromatography and infrared spectroscopy

被引：66

作者：

Dailey, A ^{[1
]}

Shin, J ^{[1
]}

Korzeniewski, C ^{[1
]}

机构：

[1] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA

来源：

ELECTROCHIMICA ACTA | 1998年 / 44卷 / 6-7期

关键词：

ethylene glycol; platinum; oxidation; organic oxidation reactions; infrared spectroscopy;

D O I：

10.1016/S0013-4686(98)00217-5

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Wet chemical methods were used in combination with in situ infrared spectroscopy to identify and quantify soluble products formed during ethylene glycol electrochemical oxidation on platinum. A small volume electrolysis technique allowed reactions to be performed in samples of 150 mu l in contact with a small, bead-type single crystal electrode. Following reaction, 50-100 mu l aliquots were assayed for aldehydes and carboxylic acids. Glycolaldehyde (HOCH2CHO), and glycolic (HOCH2COOH) and oxalic ((HOOC)(2)) acids were detected following the 360 s electrolysis of 0.2 M ethylene glycol in 0.1 M HClO4 at potentials in the range 0.0-0.6 V (vs. SCE). Determination of the carboxylic acids by ion chromatography aided the assignment of carboxylate vibrational bands in in situ infrared spectra. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1147 / 1152

页数：6

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