Fabrication of optically tunable silica nanocapsules containing Ag/Au nanostructures by confined galvanic replacement reaction

Li, Haiqing, Ha, Chang-Sik and Kim, Il (2010) Fabrication of optically tunable silica nanocapsules containing Ag/Au nanostructures by confined galvanic replacement reaction. Journal of Nanoparticle Research, 12 3: 985-992. doi:10.1007/s11051-009-9650-x


Author Li, Haiqing
Ha, Chang-Sik
Kim, Il
Title Fabrication of optically tunable silica nanocapsules containing Ag/Au nanostructures by confined galvanic replacement reaction
Journal name Journal of Nanoparticle Research   Check publisher's open access policy
ISSN 1388-0764
1572-896X
Publication date 2010-03
Year available 2009
Sub-type Article (original research)
DOI 10.1007/s11051-009-9650-x
Volume 12
Issue 3
Start page 985
End page 992
Total pages 8
Place of publication Dordrecht, Netherlands
Publisher Springer Netherlands
Language eng
Abstract Silica nanocapsules containing Ag/Au alloy nanostructures (SNCAs) are fabricated by galvanic replacement (GR) reactions between silver core nanoparticles within silica shells and aqueous HAuCl4 in a confined nano-space. The structure and morphology of the resulting SNCAs are diversified by controlling the relative amount of Ag/Au, exhibiting tunable optical absorptions in visible region. The GR reactions in a confined nano-space include alloying and de-alloying processes that determine the evolution of morphology and optical absorption of SNCAs.
Keyword Alloys
Galvanic replacement reaction
Gold/Silver
Nanostructures
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Published online: 19 May 2009

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Wed, 12 Oct 2011, 21:38:27 EST by Haiqing Li on behalf of Aust Institute for Bioengineering & Nanotechnology