Peer-Reviewed Journal Details
Mandatory Fields
Collins, G.; Rahme, K.; O’Connell, J.; Holmes, J. D.
Catalysis Science & Technology
Embedding colloidal nanoparticles inside mesoporous silica using gas expanded liquids for high loading recyclable catalysts
Optional Fields
The ability to tune the structural and chemical properties of colloidal nanoparticles (NPs), make them highly advantageous for studying activity and selectivity dependent catalytic behaviour. Incorporating pre-synthesised colloidal NPs into porous support materials remains a challenge due to poor pore wetting and permeability. In this report monodisperse, composition-controlled AgPd alloy NPs were synthesised and embedded into mesoporous silica SBA-15 using supercritical carbon dioxide and hexane. Impregnation resulted in a high metal loading without the requirement for surface pretreatments. The catalytic activity, reaction profiles and recyclability of the alloy NPs embedded in SBA-15 and immobilised on non-porous SiO2 are evaluated. The NPs incorporated within the SBA-15 porous network showed significantly greater recyclability performance compared to non-porous SiO2.
Cambridge, UK!recentarticles&adv
Grant Details