Palladium nanoparticles stabilised on PEG-modified silica as catalysts for the aerobic alcohol oxidation in supercritical carbon dioxide

Abstract

PEG-modified (PEG = polyethylene glycol) silica surfaces are able to effectively stabilize and immobilize palladium nanoparticles for their use as selective oxidation catalysts in combination with scCO2 as reaction medium under mild conditions. These catalysts show high activity and excellent stability under continuous-flow operation.