Electrochemical quartz crystal microbalance study of perchlorate and perrhenate anion adsorption on polycrystalline gold electrode

被引：25

作者：

Jusys, Z

Bruckenstein, S ^{[1
]}

机构：

[1] SUNY Buffalo, Dept Chem, Buffalo, NY 14260 USA

[2] Inst Chem, LT-2600 Vilnius, Lithuania

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2000年 / 2卷 / 06期

基金：

美国国家科学基金会;

关键词：

electrochemical quartz crystal microbalance; gold electrode; adsorption; perchlorate; perrhenate;

D O I：

10.1016/S1388-2481(00)00044-8

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical quartz crystal microbalance (EQCM) was used to study adsorption/desorption of perchlorate and perrhenate ions on a bare polycrystalline gold electrode. An electrode mass change in perrhenate solution was about double that of perchlorate. The equivalent mass of adsorbed anions ( about 260 and 120 g F-1 respectively) suggests adsorption of perchlorate and perrhenate anions on a polycrystalline gold electrode in the double-layer region. Water molecules are partially expelled from the gold surface during the initial stages of anion adsorption. The water loss is about three times larger for perrhenate compared to perchlorate due to the bigger ionic radius (volume) of the perrhenate anion. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：412 / 416

页数：5

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