OXIDATION OF HYDROSULFIDE IONS ON GOLD .2. CHARACTERIZATION OF GOLD AQUEOUS HYDROSULFIDE SOLUTION INTERFACE

被引：19
|
作者：
BRICENO, A
CHANDER, S
机构：
[1] Mineral Processing Section, Department of Mineral Engineering, The Pennsylvania State University, University Park, 16802, PA
来源：
JOURNAL OF APPLIED ELECTROCHEMISTRY | 1990年 / 20卷 / 03期
关键词：
D O I：
10.1007/BF01076065
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The results of studies to characterize the gold/aqueous hydrosulphide solution interface are presented in this paper. The interface was characterized with impedance spectroscopy, contact angle and cathodic charge transfer measurements. The studies complement the cyclic voltammetry investigations presented in Part I. A detailed mechanism of the oxidation and reduction of sulphur species at gold electrodes has been suggested on the basis of this investigation. The results show that the surface becomes hydrophobic under the conditions when polysulphide ions or elemental sulphur are present at the interface. © 1990 Chapman and Hall Ltd.
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收藏
页码：512 / 517
页数：6
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