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Raspberry‐like Gold Microspheres: Preparation and Electrochemical Characterization
Author(s) -
Li Z.,
Ravaine V.,
Ravaine S.,
Garrigue P.,
Kuhn A.
Publication year - 2007
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200600667
Subject(s) - materials science , cyclic voltammetry , scanning electron microscope , indium tin oxide , dispersity , layer (electronics) , chemical engineering , tin oxide , electrochemistry , nanotechnology , surface roughness , indium , electrode , analytical chemistry (journal) , oxide , composite material , polymer chemistry , metallurgy , chromatography , chemistry , engineering
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.