Adsorption of benzoic acid on an An (100) electrode in acidic media by IRAS

被引：11

作者：

Ikezawa, Y ^{[1
]}

Sekiguchi, R ^{[1
]}

Kitazume, T ^{[1
]}

机构：

[1] Rikkyo Univ, Fac Sci, Dept Chem, Toshima Ku, Tokyo 171, Japan

来源：

ELECTROCHIMICA ACTA | 1999年 / 45卷 / 07期

关键词：

voltammetry; IRAS; benzoic acid; reversible couple;

D O I：

10.1016/S0013-4686(99)00304-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Adsorption of benzoic acid on an Au (100) electrode in 0.1 M HClO4 has been investigated by IRAS and voltammetry. In the IRAS, the vibrational band of COO- symmetrical stretch corresponding to the vertically adsorbed benzoate anion species were observed. At slightly higher frequency a new band also due to the symmetrical stretch of the benzoate anion, and overlapping with the original band, appeared at 0.8 V (RHE). In the voltammogram, three reversible couple were observed; a peak at 0.5 V corresponds to the appearance of the COO- band and a peak observed at 0.8 V corresponds to the appearance of the new band. This indicates that the new band should be associated with some adsorption behavior of the vertical type such as a change of the packing arrangement at that potential. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1089 / 1093

页数：5

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