THE ELECTROSORPTION OF IMIDAZOLE ON A GOLD ELECTRODE AS STUDIED WITH SPECTROELECTROCHEMICAL METHODS

被引：37

作者：

HOLZE, R

机构：

[1] Carl von Ossietzky-Universität Oldenburg, Fachbereich Chemie, DW-2900 Oldenburg

来源：

ELECTROCHIMICA ACTA | 1993年 / 38卷 / 07期

关键词：

IMIDAZOLE; SERS; ELECTROSORPTION; SPECTROELECTROCHEMISTRY; TENSIOMETRY;

D O I：

10.1016/0013-4686(93)87013-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The adsorption of imidazole on a polycrystalline gold electrode has been studied with electrochemical methods (cyclic voltammetry, tensammetry) and Surface Enhanced Raman Spectroscopy (SERS). The results indicate a strong physisorption of the molecule when adsorbed from a neutral solution (DELTAG(ad)0 = - 35.5 +/- 0.5 kJ mol-1). SERS data indicate a molecular adsorption with a perpendicular orientation from solutions of 0.1 M KClO4. From acidic solution a deprotonated imidazolate is adsorbed in a perpendicular orentation.

引用

页码：947 / 956

页数：10

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