Open Access Nano Express

Structure of reverse microemulsion-templated metal hexacyanoferrate nanoparticles

Alberto Gutiérrez-Becerra1, Maximiliano Barcena-Soto1, Víctor Soto1, Jesús Arellano-Ceja1, Norberto Casillas1, Sylvain Prévost2, Laurence Noirez3, Michael Gradzielski2 and José I Escalante1*

Author Affiliations

1 Chemistry Department, University of Guadalajara, Boul. M. García Barragán # 1451, Guadalajara, Jalisco, 44430, Mexico

2 Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, Sekr. TC7, Berlin, 10623, Germany

3 Laboratoire Léon Brillouin (CEA-CNRS), CEA Saclay, Gif-sur-Yvette, 91191, France

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Nanoscale Research Letters 2012, 7:83  doi:10.1186/1556-276X-7-83

Published: 20 January 2012

Abstract

The droplet phase of a reverse microemulsion formed by the surfactant cetyltrimethylammonium ferrocyanide was used as a matrix to synthesize nanoparticles of nickel hexacyanoferrate by adding just a solution of NiCl2 to the microemulsion media. Dynamic light scattering and small-angle neutron scattering measurements show that the reverse microemulsion droplets employed have a globular structure, with sizes that depend on water content. Transmission electron microscopy and electron diffraction are used to obtain information about the structure of the synthesized nanoparticles. The results show that the size and shape of the coordination compound nanoparticles correspond with the size and shape of the droplets, suggesting that the presented system constitutes an alternative method of the synthesis of metal hexacyanoferrate nanoparticles.

Keywords:
reverse micelles; template method; nanoparticles; nickel hexacyanoferrate