Electrocatalytic oxidation of monosaccharides on platinum electrodes modified by thallium adatoms in carbonate buffered medium

被引：8

作者：

Bamba, K ^{[1
]}

Kokoh, KB ^{[1
]}

Servat, K ^{[1
]}

Léger, JM ^{[1
]}

机构：

[1] Univ Poitiers, CNRS, UMR 6503, LACCO,Equipe Electrocatalyse, F-86022 Poitiers, France

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2006年 / 36卷 / 02期

关键词：

electrocatalytic oxidation; monosaccharides; platinum; thallium adatoms;

D O I：

10.1007/s10800-005-9056-0

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The effect of modification of polycrystalline platinum by Tl adatoms on the electrocatalytic properties of the electrodes towards the oxidation of monosaccharides was investigated. Significant electrocatalytic effect towards glucose and methylglucoside oxidation was observed on Pt-Tl electrodes as displayed by an enhancement of the oxidation current densities. Different carboxylic acids produced by the electrolysis of carbohydrates were analyzed by ionic chromatography. The electrooxidation of glucose on Pt-Tl gave gluconic and keto-gluconic acids, successively. When the anomeric carbon is protected (methylglucoside), the first oxidation step of the monosaccharide was carried out on the primary alcohol following the same path as that of methanol oxidation.

引用

页码：233 / 238

页数：6

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