Hydrogen spillover involves the migration of hydrogen atoms from metal to another component, yet it remains challenging to achieve on non-reducible supports. This paper describes the observation of hydrogen spillover on non-reducible Al2O3-supported Pd single-atom catalysts, facilitated by phosphorus−hydroxyl (P−OH) bridge sites, for acetylene semi-hydrogenation. Through in situ spectroscopy, kinetic analysis, and computational analyses, we show that Pd single atoms promote the heterolytic activation of H2, while phosphorus doping on Al2O3 lowers energy barrier for hydrogen spillover via the formation of P−OH species.
Read more in our recent publication at Nature Commun.:
Relay Semi-hydrogenation of Acetylene via Hydrogen Spillover on Non-reducible Al2O3-supported Single Atom Catalysts
Nature Commun.: Relay Semi-hydrogenation of Acetylene via Hydrogen Spillover on Non-reducible Al2O3-supported Single Atom Catalysts
Posted in Research.