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Induction time of silver nanoparticles precipitation: Experiment and modeling

✍ Scribed by N. Hatami; S. Ghader

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 490 KB
Volume: 44
Category: Article
ISSN: 0232-1300
DOI: 10.1002/crat.200900177

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✦ Synopsis

Abstract

This paper describes the measurement of induction time in precipitation of silver nanoparticles at different temperatures and supersaturations, and models it with Smoluchowski's coagulation theory. Silver nanoparticles are synthesized by reaction of silver nitrate with hydrazine in the presence of sodium citrate as stabilizer. The rate of association between clusters is found to depend on temperature and their sizes. The activation energy for the association between two clusters and interfacial tension of silver nanoparticles were also estimated. The results also show that induction time decreases with increasing supersaturation and temperature. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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