Platinum electrodeposition from a dinitrosulfatoplatinate(II) electrolyte

被引：4
|
作者：
Weiser, Mathias [1 ]
Schulze, Claudia [1 ]
Schneider, Michael [1 ]
Michaelis, Alexander [1 ,2 ]
机构：
[1] Fraunhofer Inst Ceram Technol & Syst, IKTS, Winterbergstr 28, D-01277 Dresden, Germany
[2] Tech Univ Dresden, Inst Mat Sci, Helmholtzstr 7, D-01069 Dresden, Germany
来源：
APPLIED SURFACE SCIENCE | 2016年 / 390卷
关键词：
Platinum; Electrodeposition; Nanoparticles; Pulse plating; GLASSY-CARBON ELECTRODES; PARTICLE-SIZE; NUCLEATION; GRAPHITE; GROWTH; METALS; PULSE;
D O I：
10.1016/j.apsusc.2016.08.010
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work a halogen-free electrolyte to deposit platinum nanoparticle is studied. The investigated [Pt(NO2)(2)SO4](2-)-complex is suitable for electrochemical deposition on halogen sensitive substrates. The mechanism and kinetic of particle deposition is investigated using a glassy carbon rotating disk electrode. Nano sized platinum particles are deposited by using pulse plating technique. The size of the smallest platinum nanoparticle is 5 nm. The shape of the particle distribution strictly depends on the plating time. The platinum deposition is usually superimposed with hydrogen evolution. A diffusion coefficient of the [Pt(NO2)(2)SO4](2-)-complex is determined to 5.4 x 10(-6) cm(2)s(-1). The current efficiency depends on the deposition parameters and amounts to 37% under the chosen pulse plating conditions. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：333 / 338
页数：6
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