Electrochemical preparation and characterization of thin deposits of Pd-noble metal alloys

被引：40
|
作者：
Lukaszewski, M. [1 ]
Czerwinski, A. [1 ,2 ]
机构：
[1] Univ Warsaw, Dept Chem, PL-02093 Warsaw, Poland
[2] Ind Chem Res Inst, PL-01793 Warsaw, Poland
来源：
THIN SOLID FILMS | 2010年 / 518卷 / 14期
关键词：
Palladium; Alloys; Deposition process; Electrochemistry; Surface morphology; AUGER-ELECTRON SPECTROSCOPY; PT-RH ALLOYS; RETICULATED VITREOUS CARBON; QUARTZ-CRYSTAL MICROBALANCE; FORMIC-ACID OXIDATION; METHANOL FUEL-CELL; GROUP-IB METALS; SURFACE-COMPOSITION; HYDROGEN ELECTROSORPTION; ADSORPTION PRODUCTS;
D O I：
10.1016/j.tsf.2009.10.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The procedures of Pd-noble metal alloy (Pd-Au, Pd-Pt, Pd-Rh, Pd-Pt-Rh) preparation by electrochemical deposition from chloride solutions are described. The influence of deposition conditions on alloy composition is presented. The deposits were characterized electrochemically in acidic solutions (H2SO4 aq) by cyclic voltammetry. The surface morphology of the alloys was examined by scanning electron microscopy and scanning tunneling microscopy. The alloy surface composition was investigated in situ by the electrochemical method and ex situ by Auger electron spectroscopy, while the bulk composition was determined by energy dispersive analysis of X-rays and atomic absorption spectroscopy. The electrochemical methods of the real surface area determination were compared and discussed. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：3680 / 3689
页数：10
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