Sonochemical Deposition of Au Nanoparticles on Titania and the Significant Decrease in the Melting Point of Gold

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Abstract:

In this article, sub-micron size particles of titania were coated by a nanosized gold particles with the aid of power ultrasound. We could achieve a uniform coating of gold nanoparticles on a titania surface with a maximum gold loading of 10 wt%. In addition, we report on the experimental evidence for a significant decrease in the melting point of gold nanoparticles (<2 nm) by ∼850 °C from that of the bulk material.

Keywords: GOLD NANOPARTICLES; MELTING; SONOCHEMISTRY; TITANIA

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2005.137

Publication date: June 1, 2005

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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