One-Pot Radiolytic Synthesis of Gold Nanorods and Their Optical Properties

Wafa Abidi 1 P. R. Selvakannan 2 Yanick Guillet 3 Isabelle Lampre 2 Patricia Beaunier 4 Brigitte Pansu Bruno Palpant 5 Hynd Remita 2
1 INSP - Institut des Nanosciences de Paris
2 LCPO - Laboratoire de Chimie Physique D'Orsay
3 I2M - Institut de Mécanique et d'Ingénierie de Bordeaux
4 LRS - Laboratoire de Réactivité de Surface
5 LPQM - Laboratoire de Photonique Quantique et Moléculaire
Abstract : A novel one-pot synthesis method to prepare gold nanorods of different aspect ratios using radiolysis is presented. The gold nanorods are synthesized by radiolytic reduction of Au-III complexes in a micellar solution formed by a mixture of cationic surfactants (cetyltrimethylammonium bromide and tetraoctylammonium bromide) and in the presence of acetone and silver ions. The mechanisms of reduction of gold complexes and formation of the nanorods are discussed. The nanorods can be trapped in a poly(vinyl alcohol) gel formed under irradiation. The UV-visible absorption spectra of nanorod solutions are compared with calculations performed by using the discrete dipole approximation method, underlying the effect of the rod aspect ratio distribution.
Keywords : NANOPARTICLES ASPECT-RATIO PULSE-RADIOLYSIS SILVER ATOMS SEED-MEDIATED GROWTH DISCRETE-DIPOLE APPROXIMATION AQUEOUS-SOLUTION POLY(VINYL ALCOHOL) HYDROXYL RADICALS SURFACE-PLASMONS
Type de document :
Article dans une revue
Journal of Physical Chemistry C, American Chemical Society, 2010, 114 (35), pp.4794-14803. 〈10.1021/jp104819c〉
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https://hal-ecp.archives-ouvertes.fr/hal-00833023
Contributeur : Thomas Antoni <>
Soumis le : mardi 11 juin 2013 - 17:58:12
Dernière modification le : jeudi 13 décembre 2018 - 01:47:29

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Wafa Abidi, P. R. Selvakannan, Yanick Guillet, Isabelle Lampre, Patricia Beaunier, et al.. One-Pot Radiolytic Synthesis of Gold Nanorods and Their Optical Properties. Journal of Physical Chemistry C, American Chemical Society, 2010, 114 (35), pp.4794-14803. 〈10.1021/jp104819c〉. 〈hal-00833023〉

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