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SpringerOpen, Chemistry Central Journal, 1(7), 2013

DOI: 10.1186/1752-153x-7-161

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The sol-gel entrapment of noble metals in hybrid silicas: a molecular insight

Journal article published in 2013 by Alexandra Fidalgo, Rosaria Ciriminna, Luís Lopes, Valerica Pandarus, François Béland, Laura M. Ilharco, Mario Pagliaro ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Abstract Background Why are metal nanoparticles sol-gel entrapped in ORMOSIL so active and stable? In other words, why ORMOSIL-entrapped metal nanoparticles are more active and selective than many heterogenized counterparts, including silica-entrapped noble metals? Results Unveiling specific interactions between MNPs and the molecular structure of ORMOSIL, this work investigates subtle structural aspects through DRIFT spectroscopy. Conclusions The results point to interactions between entrapped Pd and Pt nanocrystallites with the organosilica sol-gel cages similar to those taking place in enzymes.