In situ spectroscopic detection of SMSI effect in a Ni/CeO2 system: hydrogen-induced burial and dig out of metallic nickel.
In situ APPES technique demonstrates that the strong metal support interaction effect (SMSI) in the Ni-ceria system is associated with the decoration and burial of metallic particles by the partially reduced support, a phenomenon reversible by evacuation at high temperature of the previously absorbed hydrogen.
Caballero
Alfonso
A
Instituto de Ciencia de Materiales and Departamento Quimica Inorganica (CSIC-Universidad de Sevilla), Sevilla, Spain. caballero@us.es
Holgado
Juan P
JP
Gonzalez-delaCruz
Victor M
VM
Habas
Susan E
SE
Herranz
Tirma
T
Salmeron
Miquel
M