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Issue 8, 2011
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Microemulsions as reaction media for the synthesis of Pt nanoparticles†

L. M. Magno,a   D. G. Angelescu,b   W. Siglec  and  C. Stubenrauchad  
Author affiliations

a University College Dublin, School of Chemical and Bioprocess Engineering, Belfield, Dublin 4, Ireland

b Institute of Physical Chemistry, I.G. Murgulescu Romanian Academy, 060021 Bucharest, Romania

c Max-Planck-Institut für Metallforschung, Heisenbergstraße 3, 70569 Stuttgart, Germany

d Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany

Abstract

For the synthesis of Pt nanoparticles we used water-in-oil droplet microemulsions as templates. The focus was on the correlation between the size of the microemulsion droplets and that of the resulting Pt particles. To study this correlation in a systematic way, all particles were synthesized at the wateremulsification failure boundaries where the microemulsion droplets are spherical and where their size can easily be tuned by the amount of added water. The metallic particles were synthesized by mixing two microemulsions one of which contains the metal salt H2PtCl6 and the other the reducing agent NaBH4. The size and structure of the microemulsion droplets was studied viasmall-angle X-ray scattering, while the Pt particles were characterized by high-resolution transmission electron microscopy in combination with energy-dispersive X-ray spectroscopy and selected area electron diffraction. The clear correlation between droplet and particle size was further supported by accompanying Monte Carlo simulations.

Graphical abstract: Microemulsions as reaction media for the synthesis of Pt nanoparticles

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Article information

https://doi.org/10.1039/C0CP01085E
Submitted
05 Jul 2010
Accepted
03 Sep 2010
First published
30 Sep 2010
Phys. Chem. Chem. Phys., 2011,13, 3048-3058
Article type
Paper
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Microemulsions as reaction media for the synthesis of Pt nanoparticles

L. M. Magno, D. G. Angelescu, W. Sigle and C. Stubenrauch, Phys. Chem. Chem. Phys., 2011, 13, 3048
DOI: 10.1039/C0CP01085E

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