One-step synthesis and stabilization of gold nanoparticles in water with the simple oxothiometalate Na2[Mo3(μ3-S)(μ-S)3(Hnta)3]

Bineta Keita; Rosa Ngo Biboum; Israel Martyr Mbomekallé; Sébastien Floquet; Corine Simonnet-Jégat; Emmanuel Cadot; Frédéric Miserque; Patrick Berthet; Louis Nadjo

doi:10.1039/B805224G

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One-step synthesis and stabilization of gold nanoparticles in water with the simple oxothiometalate Na₂[Mo₃(μ₃-S)(μ-S)₃(Hnta)₃]†

Bineta Keita,^a Rosa Ngo Biboum,^a Israel Martyr Mbomekallé,^b Sébastien Floquet,^b Corine Simonnet-Jégat,^b Emmanuel Cadot,^b Frédéric Miserque,^c Patrick Berthet^d and Louis Nadjo*^a

Author affiliations

* Corresponding authors

^a Laboratoire de Chimie Physique, UMR 8000, Université de Paris-Sud 11, bât. 349, Orsay Cedex, France
E-mail: louis.nadjo@lcp.u-psud.fr

^b Institut Lavoisier de Versailles, UMR 8180, Université de Versailles, 45 avenue des Etats Unis, Versailles, France

^c Laboratoire de Réactivité des Surfaces et Interfaces/ CEA-Saclay DEN/DANS/DPC/SCP, bât. 391, Gif-sur-Yvette Cedex, France

^d Laboratoire de Physicochimie de l'Etat Solide, ICMMO, UMR 8648, Université Paris Sud 11, bât. 410, Orsay Cedex, France

Abstract

Na₂[Mo₃(μ₃-S)(μ-S)₃(Hnta)₃] serves both as a reducing and a capping agent in the synthesis of Au nanoparticles in water at room temperature in a “fully green chemistry-type process”, thus avoiding the usual two-step preparation of thiolate-monolayer-coated gold nanoparticles. The nanoparticles were characterized by TEM, DLS, UV-vis spectroscopy, XPS and XRD analyses and cyclic voltammetry.

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Supplementary files

Experimental details including the pH of the mother mixtures, evolution of Au⁰ SPR spectra as a function of time, DLS measurement of particle size, superposition of the UV-visible spectra of the starting oxothiometalate, the mother mixture of HAuCl₄ and Na₂[Mo₃S₄(Hnta)₃] after reaction completion and of the nanoparticles after centrifugation and washing, TEM image for γ = 0.5 and cyclic voltammograms PDF (723K)

Article information

DOI: https://doi.org/10.1039/B805224G
Article type: Communication
Submitted: 27 Mar 2008
Accepted: 24 Apr 2008
First published: 08 May 2008

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J. Mater. Chem., 2008,18, 3196-3199

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One-step synthesis and stabilization of gold nanoparticles in water with the simple oxothiometalate Na₂[Mo₃(μ₃-S)(μ-S)₃(Hnta)₃]

B. Keita, R. N. Biboum, I. M. Mbomekallé, S. Floquet, C. Simonnet-Jégat, E. Cadot, F. Miserque, P. Berthet and L. Nadjo, J. Mater. Chem., 2008, 18, 3196 DOI: 10.1039/B805224G

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Journal of Materials Chemistry