学术探索
学术期刊
新闻热点
数据分析
智能评审

A SERS investigation of the electrodeposition of Ag-Au alloys from free-cyanide solutions

被引：36
作者：
Bozzini, B
De Gaudenzi, GP
Mele, C
机构：
[1] Univ Lecce, INFM, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy
[2] FILMS SpA, I-28877 Anzola Ossola, VB, Italy
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2004年 / 563卷 / 01期
关键词：
SERS; electrodeposition; XRD; Au; Ag; Au alloys;
D O I：
10.1016/j.jelechem.2003.09.025
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this paper we investigated the electrodeposition of Ag-Au alloys from cyanide baths by in situ surface-enhanced Raman spectroscopy. The spectroelectrochemical investigation is complemented by electrochemical experiments (cyclic voltammetry and potentiostatic electrodeposition) and structural (X-ray diffraction), morphological (scanning electron microscopy) and compositional (energy dispersive spectroscopy) characterisation of the alloys. Electrochemical and spectroelectrochemical results on singlemetal electrodeposition baths of otherwise identical composition are reported for comparison. Single-phase deposits of composition ranging from 13% to 75% Au were obtained potentiostatically. The voltammetric behaviour was correlated to the vibrational characteristics of adsorbed ligands. Quantitative and qualitative differences in interfacial chemistry as a function of applied potential were assessed and explained on the basis of variations in the nature of cyanide-related surface species. The cyanide and metal-adsorbate stretching bands have been analysed. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：133 / 143
页数：11
相关论文
共 61 条
[1]   ON THE POTENTIAL DEPENDENCE OF THE CN STRETCH FREQUENCY ON AU ELECTRODES STUDIED BY SERS [J].
BALTRUSCHAT, H ;
HEITBAUM, J .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1983, 157 (02) :319-326
[2]  
BIRKE RL, 1991, TECHNIQUES CHARACTER, P211
[3]   Electrodeposition of Au-Sn alloys from acid Au(III) baths [J].
Bozzini, B ;
Fanigliulo, A ;
Giovannelli, G ;
Natali, S ;
Mele, C .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2003, 33 (08) :747-754
[4]   An electrochemical and spectroelectrochemical study of the electrodeposition of Au from KAu(CN)2 solutions containing 4-cyanopyridine and cetylpyridinium chloride [J].
Bozzini, B ;
Fanigliulo, A ;
Mele, C .
TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING, 2003, 81 :59-67
[5]   Electrochemical and X-ray photoelectron spectroscopy investigation into anodic behaviour of electroless Ni-9-5 wt-%P in acidic chloride environment [J].
Bozzini, B ;
Lenardi, C ;
Serra, M ;
Fanigliulo, A .
BRITISH CORROSION JOURNAL, 2002, 37 (03) :173-181
[6]   An in situ spectroelectrochemical Raman investigation of Au electrodeposition and electrodissolution in KAu(CN)2 solution [J].
Bozzini, B ;
Fanigliulo, A .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2002, 32 (09) :1043-1048
[7]   Crystallographic structure of gold films electrodeposited at low current densities [J].
Bozzini, B ;
Giovannelli, G ;
Natali, S ;
Fanigliulo, A ;
Cavallotti, PL .
JOURNAL OF MATERIALS SCIENCE, 2002, 37 (18) :3903-3913
[8]   Hydrogen incorporation and embrittlement of electroformed Au, Cu and Au-Cu [J].
Bozzini, B ;
Giovannelli, G ;
Natali, S ;
Brevaglieri, B ;
Cavallotti, PL ;
Signorelli, G .
ENGINEERING FAILURE ANALYSIS, 1999, 6 (02) :83-92
[9]   ELECTROCHEMICAL AND STRUCTURAL ASPECTS OF GOLD ELECTRODEPOSITION FROM DILUTE SOLUTIONS BY DIRECT CURRENT [J].
CHEH, HY ;
SARD, R .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1971, 118 (11) :1737-&
[10]   The time-resolved EQCM and study of the kinetics of silver(I) oxide formation on a polycrystalline silver electrode in alkaline solution [J].
Chen, SL ;
Wu, BL ;
Cha, CS .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1997, 420 (1-2) :111-118
1234567