A simple and high-reproducible method for the synthesis of polymer-protected silt-er cluster of controlled size is described. UV-visible spectroscopy has been used for investigating the influence of the aging of the protective poly (vinylpyrrolidone) layer on the cluster growth rate at different reaction temperatures and poly (vinylpyrrolidone)/ethylene glycol weight ratios. The obtained results show that the aging tune of the polymeric stabilizer solution plays a fundamental role in the reproducibility of the cluster growth process. A model for the metal cluster formation-grow process is also proposed.
A qualitative model for the growth mechanism of silver clusters in polymer solution / G., Carotenuto; S., Denicola; Pepe, GIOVANNI PIERO; L., Nicolais. - In: THE EUROPEAN PHYSICAL JOURNAL. B, CONDENSED MATTER PHYSICS. - ISSN 1434-6028. - STAMPA. - 24:(2001), pp. 437-441. [10.1007/s10051-001-8696-z]
A qualitative model for the growth mechanism of silver clusters in polymer solution
PEPE, GIOVANNI PIERO;
2001
Abstract
A simple and high-reproducible method for the synthesis of polymer-protected silt-er cluster of controlled size is described. UV-visible spectroscopy has been used for investigating the influence of the aging of the protective poly (vinylpyrrolidone) layer on the cluster growth rate at different reaction temperatures and poly (vinylpyrrolidone)/ethylene glycol weight ratios. The obtained results show that the aging tune of the polymeric stabilizer solution plays a fundamental role in the reproducibility of the cluster growth process. A model for the metal cluster formation-grow process is also proposed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
