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Raspberry-like Gold Microspheres: Preparation and Electrochemical Characterization

✍ Scribed by Z. Li; V. Ravaine; S. Ravaine; P. Garrigue; A. Kuhn

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
428 KB
Volume
17
Category
Article
ISSN
1616-301X

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✦ Synopsis

Abstract

A straightforward method to synthesize quasi‐monodisperse gold microspheres from a commercial gold plating solution is reported. The size and the surface roughness of the obtained particles can easily be tuned. In particular, raspberry‐like particles with a high active surface area are obtained. The microspheres are assembled on indium tin oxide (ITO) electrodes using the layer‐by‐layer technique and the overall electroactive surface area is increased, as characterized by cyclic voltammetry. The as‐prepared products were characterized by scanning electron microscopy (SEM), powder X‐ray diffraction (XRD), cyclic voltammetry, and light microscopy.

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