Abstract
High-resolution transmission electron microscopy has been applied to the characterization of the Rh/Sm 2O 3 system. The comparison between Rh/CeO 2 and Rh/Sm 2O 3 catalysts suggests a model of behavior that would be operative for metals supported on rare-earth sesquioxides. The model assumes that a significant dissolution of the support takes place during the impregnation step. As a consequence, the metal would be present in a highly dispersed state after the drying process, forming a mixed phase with the support material, which explains why metal crystallites are only observed after reduction followed by heat treatment at high temperature.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
