In situ formation of HRh(CO)2(PPh3)2 active species on the surface of a SBA-15 supported heterogeneous catalyst and the effect of support pore size on the hydroformylation of propene

A method of in situ formation of HRh(CO)2(PPh3)2 active species on the surface of heterogeneous Rh/SBA-15 catalyst has been developed and confirmed in this work. The amount of active species formed inside the pores can be controlled by the support pore size. This class of PPh3-Rh/SBA-15 catalyst has been employed in propene hydroformylation to be highly active, selective, stable, easily workable and recyclable. Using TEM, solid-state 31P MAS NMR, and in situ FT-IR, HRh(CO)2(PPh3)2 active species can be characterized.

Graphical abstractA method of in situ formation of HRh(CO)2(PPh3)2 active species on the surface of heterogeneous catalyst has been developed and confirmed. The amount of active species can be controlled by the support pore size. The PPh3-Rh/SBA-15 catalyst has been employed in propylene hydroformylation to be highly active, selective, stable, easily workable and recyclable.Figure optionsDownload full-size imageDownload as PowerPoint slide