Controlled reduction of palladium nanoparticles on surface of chemically modified silicas

Abstract

The reduction of palladium ions by silicon hydride groups grafted to the surface of silica matrices was applied for the synthesis of palladium-containing nanocomposites. Ordered mesoporous silicas, such as MCM-41 and SBA-15, along with silochrom type silica were used as supports for palladium nanoparticles in order to obtain encapsulated in pores metal particles. The synthesized nanocomposites have been studied by IR-spectroscopy, X-ray diffraction analysis, low-temperature nitrogen adsorption and transmission electron microscopy. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.