Abstract
Stable sols of gold nanoparticles with an average diameter of about 13 nm were prepared from hydrogen tetrachloroaurate (prepared from bulk metallic gold) and trisodium citrate dihydrate. The organic salt acts as reducing as well as stabilizing agent for the gold nanoparticles, having an average diameter of 13±4 nm. The deep purple colloidal suspension is stable for several weeks. UV-Vis absorption spectra shows the typical surface plasmon resonance band of nanosized gold with an absorption maximum at 521.5 ± 0.5 nm.
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Gross, S. (2008). Colloidal Dispersion of Gold Nanoparticles. In: Schubert, U., Hüsing, N., Laine, R.M. (eds) Materials Syntheses. Springer, Vienna. https://doi.org/10.1007/978-3-211-75125-1_21
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DOI: https://doi.org/10.1007/978-3-211-75125-1_21
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