ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Recently, gram quantities of monodisperse gold or silver nanoparticles were reported to beproduced through a digestive ripening process, in which colloidal particles of size 2 to 40 nm aretransformed to nearly monodisperse particles of 4 ~ 5 nm diameter. Digestive ripening, an examplefor an inverse Ostwald ripening process, is a puzzling phenomenon since it appears to go against theusual capillary effect, i.e., reduction of interfacial free energy. A theoretical model is presented, whichaccounts for the monodisperse state of such nanoparticles by considering the effect of charges on theparticles and thus electrostatic energy during particle size evolution
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.2279.pdf
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