Adsorption of Pd(hfac)(2) on mesoporous silica SBA-15 using supercritical CO2 and its role in the performance of Pd-SiO2 catalyst - Tenorio, M. J.; Pando, C.; Renuncio, J. A. R.; Stevens, J. G.; Bourne, R. A.; Poliakoff, M.; Cabanas, A.; (Journal Of Supercritical Fluids, 2012)