HALIDE CATALYSIS OF THE ELECTROCHEMICAL OXIDATION OF GOLD IN ACETONITRILE

被引：11
作者：
KISSNER, R
机构：
[1] Laboratorium für Anorganische Chemie, ETH Zürich
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1995年 / 385卷 / 01期
关键词：
ELECTROOXIDATION; PASSIVATION;
D O I：
10.1016/0022-0728(95)03781-B
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The anodic oxidation of metallic gold in acetonitrile, which is normally inhibited by traces of water causing passivation, can be promoted by halide catalysis. The deblocking mechanism is based on displacement of water by concurrent adsorption of halide ions. Only small quantities of halide, enough to cover the anode surface with a monoionic layer, are required for the process. The catalytic effect increases in the order Cl- < Br- << I-. The effect can be used for the easy preparation of Au+ solutions.
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页码：71 / 75
页数：5
相关论文
共 17 条
[11]   SOLVATED GOLD(I) IN ACETONITRILE WITH INERT COUNTERIONS - A VERSATILE STARTING MATERIAL FOR GOLD(I) CHEMISTRY [J].
KISSNER, R ;
LATAL, P ;
GEIER, G .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1993, (02) :136-137
[12]   SCANNING TUNNELING MICROSCOPY STUDIES OF IODIDE ADSORPTION ON AU(111) - DIRECT OBSERVATION OF ADLATTICE ORIENTATION [J].
MCCARLEY, RL ;
BARD, AJ .
JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (24) :9618-9620
[13]  
PUDDEPHATT RJ, 1978, TOPICS INORG GEN CHE, V16
[14]   SPECIFIC ROLE OF CHLORIDE IN ANODIC REACTIONS ON GOLD [J].
RADEKA, R ;
MOSLAVAC, K ;
LOVRECEK, B .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1977, 84 (02) :351-358
[15]  
ROULET R, 1975, CHIMIA, V29, P346
[16]   THERMODYNAMIC AND OPTICAL-PROPERTIES OF THE ADSORPTION LAYERS OF BROMIDE IONS ON GOLD ELECTRODES [J].
SEDLMAIER, HD ;
PLIETH, WJ .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 180 (1-2) :219-230
[17]   THE INFLUENCE OF THE WATER ACTIVITY IN ACETONITRILE ON THE FORMATION AND REDUCTION OF AN OXIDE LAYER ON GOLD [J].
WAGNER, D ;
GERISCHER, H .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1989, 258 (01) :127-137
12