Hybrid materials, preparation impregnation

Ordered mesoporous carbon (CMK-3) has been used as a template to prepare magnetic nanocomposite materials. Wet impregnation of CMK-3 with iron nitrate solution, followed by evaporation of solvent, exposure to acetic add vapour and a sintering step, results in the formation of a hybrid magnetic material. The acetic acid will react with the iron cations dispersed... 

In another work, NP/carbon hybrid systems were obtained by the impregnation of different mesoporous carbons with colloidal solutions of RuNPs previously prepared by the decomposition of [Ru(COD)(COT)], (P(H2) = 3 bar THF) in the presence of 4(3-phenylpropyl)pyridine ligands [134]. The supported RuNPs were well dispersed on the carbon materials with a mean size of 1.2-1.3 nm. These hybrid systems were successfully used as catalysts in the oxidation of benzyl alcohol in water at 80°C, giving rise to excellent conversion and selectivity (>99%) towards the aldehyde. The catalytic activity of these systems was found to be influenced by the hydrophUicity of the carbon support. 

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