Rapid synthesis of gold nanostructures with cyclic and linear ketones

Peveler, W. J. and Parkin, I. P. (2013) Rapid synthesis of gold nanostructures with cyclic and linear ketones. RSC Advances, 3(44), pp. 21919-21927. (doi: 10.1039/c3ra44842h)

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Colloidal gold nanoparticles were synthesised in aqueous solution by reaction of chloroauric acid with a range of simple aliphatic cyclic (cyclopentanone, cyclohexanone, cycloheptanone and cyclohexanedione) and linear (acetone and 3-hexanone) ketone reagents, at room temperature. The rate of reaction and particle morphology was found to be controlled by the enol content and solubility of the ketone. Cyclohexanediones produced a variety of small 20 nm particles in under 5 minutes, or larger gold nanostars, depending on the ketone isomer. Cyclopentanone was shown to produce near monodisperse 20 nm particles after 13 hours, and cycloheptanone gave polydisperse particles, but in only 50 minutes. However the linear ketones, 3-hexanone and acetone, did not produce stable colloidal suspensions. The mechanism of gold nanoparticle formation via reaction of ketones with chloroauric acid is discussed.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Peveler, Dr William
Authors: Peveler, W. J., and Parkin, I. P.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
Journal Name:RSC Advances
Publisher:Royal Society of Chemistry
ISSN (Online):2046-2069
Published Online:12 September 2013

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