THE EFFECTS OF ADSORBED ANIONS ON THE OXIDATION OF DEUTERIUM-GLUCOSE ON GOLD SINGLE-CRYSTAL ELECTRODES

被引：72

作者：

HSIAO, MW

ADZIC, RR

YEAGER, EB

机构：

[1] CASE WESTERN RESERVE UNIV, DEPT CHEM, CLEVELAND, OH 44106 USA

[2] UNIV BELGRADE, INST CHEM TECHNOL & MET, INST ELECTROCHEM, BELGRADE, YUGOSLAVIA

来源：

ELECTROCHIMICA ACTA | 1992年 / 37卷 / 02期

关键词：

GLUCOSE; SINGLE CRYSTAL GOLD; OXIDATION;

D O I：

10.1016/0013-4686(92)85024-F

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The effects of various anions on the oxidation of glucose on single crystal gold electrodes were studied in HClO4, CF3SO3H, HNO3, H2SO4, H3PO4 and HCl solutions. Contrary to common belief, glucose can be oxidized on gold in acid solutions, but only in the absence of strongly adsorbed anions such as chlorides, sulfates and phosphates. The reaction is partly or completely inhibited in solutions containing specifically adsorbed anions. The data show some indication of an (OH)ads layer on gold at potential cathodic to + 1.2 V vs rhe in HClO4 and CF3SO3H solutions. Based on the rates of oxidation of glucose, the following sequence has been found for the inhibition of the glucose oxidation by adsorbed anions: ClO4- approximately CF3SO3- much less than NO3- much less than HSO4- (SO4(2)-) < H2PO4- (HPO4(2)-) < Cl-.

引用

页码：357 / 363

页数：7

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