Electronic Resource
s.l. ; Stafa-Zurich, Switzerland
Solid state phenomena
Vol. 114 (July 2006), p. 321-328
ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Metal particles of silver (Ag) and copper (Cu) have been synthesized in the presence ofAerosol-OT (AOT) or fluorinated surfactants in water-in-scCO2 microemulsions by the chemicalreduction of AgClO4 and Cu(ClO4)2. The formation of Ag particles by the photo-reduction usingUV-light have been confirmed by in-situ UV-Vis, X-ray absorption fine structure (XAFS), andsmall angle X-ray scattering (SAXS) measurements. Cu particles have also been prepared by theaddition of a reducing reagent sodium borohydride, and the electronic structure of Cu ionic specieshas been investigated after reduction in the water-in-scCO2 microemulsions. The average size ofaggregates of Ag particles in the microemulsions by means of in-situ SAXS measurements also hasbeen estimated
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/22/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.114.321.pdf
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