Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-23T14:32:09.402Z Has data issue: false hasContentIssue false
  • English
  • Français

Silica-coated Silver Nanoparticles

Published online by Cambridge University Press:  31 January 2011

Georgios A Sotiriou  and
Sotiris E. Pratsinis
Georgios A Sotiriou
Affiliation:
geosotiriou@ptl.mavt.ethz.ch
Sotiris E. Pratsinis
Affiliation:
pratsinis@ptl.mavt.ethz.ch, Particle Technology Laboratory, Department of mechanical and process engineering, Zurich, Switzerland
Get access

Abstract

Silver (Ag) nanoparticles dispersed in an amorphous silica (SiO2) matrix or coated by a SiO2 layer were synthesized by flame spray pyrolysis (FSP). The coated nanoparticles were produced by using a modified enclosed FSP setup, in which the SiO2 precursor was injected through a ring above the FSP nozzle at various burner-ring-distances (BRDs), after the core Ag nanoparticles had been formed. The produced nanoparticles were characterized by XRD, BET, TEM and UV/vis analysis. The Ag particle size was possible to be controlled by tuning the FSP parameters. For the SiO2 coated nanoparticles, larger Ag core sizes were obtained for higher BRDs. All the produced nanoparticles exhibited the characteristic plasmon resonance frequency of Ag nanoparticles.

Keywords

Agcoatingcomposite
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1208: Symposium O – Excitons and Plasmon Resonances in Nanostructures II , 2009 , 1208-O09-01
Copyright
Copyright © Materials Research Society 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Sun, Y. G.; Xia, Y. N., Science 298 2176–2179 (2002).Google Scholar
2 Evanoff, D. D.; Chumanov, G., Chem Phys Chem 6 1221–1231 (2005).Google Scholar
3 LizMarzan, L. M.; Giersig, M.; Mulvaney, P., Langmuir 12 4329–4335 (1996).Google Scholar
4 Han, Y.; Jiang, J.; Lee, S. S.; Ying, J. Y., Langmuir 24 5842–5848 (2008).Google Scholar
5 Lu, Y.; Yin, Y. D.; Li, Z. Y.; Xia, Y. A., Nano Lett. 2 785–788 (2002).Google Scholar
6 Liu, S. H.; Han, M. Y., Adv. Funct. Mater. 15 961–967 (2005).Google Scholar
7 Madler, L.; Kammler, H. K.; Mueller, R.; Pratsinis, S. E., J. Aerosol. Sci. 33 369–389 (2002).Google Scholar
8 Strobel, R.; Pratsinis, S. E., J. Mater. Chem. 17 4743–4756 (2007).Google Scholar
9 Teleki, A.; Heine, M. C.; Krumeich, F.; Akhtar, M. K.; Pratsinis, S. E., Langmuir 24 12553–12558 (2008).Google Scholar
10 Yaws, C. L.; Narasimhan, P. K.; Gabbula, C., Knovel (2005).Google Scholar
11 Quinten, M., Appl. Phys. B-Lasers Opt. 73 317–326 (2001).Google Scholar