Preparation of gold nanoparticles (GNP) aqueous suspensions by a new method involving Tiron |
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| Authors: | Mamiko Hori Cécile Pagnoux Jean-François Baumard Masayuki Nogami |
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| Affiliation: | (1) SPCTS, UMR CNRS 6638, ENSCI, 47 avenue Albert Thomas, 87065 Limoges Cedex, France;(2) Department of Materials Science and Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan |
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| Abstract: | A new method is proposed to produce gold nanoparticles (GNP) by in situ reduction of a gold salt dissolved in water. The reducing
agent used is Tiron instead of the citrate anion most often mentioned in literature. The influence of various parameters has
been investigated, such as the content of Tiron with respect to that of the precursor of gold HAuCl4, or the initial pH of the solution after mixing of reactants. It is shown that Tiron also exerts a positive influence as
a dispersant, which impedes agglomeration of gold nanoparticles. The typical average size of GNP synthesized in the present
work is close to 7 nm. |
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