2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 5: Composite, Ceramic, Quasi-crystals, Nanomaterials & Coatings
| Editors: | Kongoli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2014 |
| Pages: | 578 pages |
| ISBN: | 978-1-987820-07-2 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Synthesis and characterization of gold nanoshells on Ag nanoparticles templates
Jose Moller1;1CIMAV (CENTRO DE INVESTIGACION EN MATERIALES AVANZADOS), CHIHUAHUA, Mexico;
Type of Paper: Regular
Id Paper: 81
Topic: 16
Abstract:
Gold nanoshells were produced by using gold nanoparticles obtained via salt reduction of KclAu4 on silver nanopartilces as template. The nominal size of the gold nanoparticles was 3 nm and for silver template was 30 nm. Afterwards, samples were characterized by STEM, FTIR and Raman spectroscopy, respectively. Gold Nanoshell shows a typical branched grown with sizes of 50 nm. FTIR studies showed the functional groups typically present in the reactions. These groups were alcohols, PVP used as reactor for gold nanoparticles, and VPR used as functionalizing copolymer. Finally, the Raman results yield a characteristic peak of the reactants contributions and that corresponding to solvates AgCl + HCl. Also, we discuss the formation of gold nanorings by the galvanic replacement of Ag nanosphere template particles. The Au/Ag nanoshells can be converted to nanorings upon addition of excess HAuCl4.