High-temperature-aging-induced encapsulation of metal particles by supportmaterials: Comparative results for Pt, Pd, and Rh on cerium-zirconium mixed oxides
Gw. Graham et al., High-temperature-aging-induced encapsulation of metal particles by supportmaterials: Comparative results for Pt, Pd, and Rh on cerium-zirconium mixed oxides, J CATALYSIS, 182(1), 1999, pp. 228-233
High-temperature-aging-induced deep encapsulation of metal particles by the
support material in supported-metal catalysts, recently observed in ceria-
zirconia-supported Pd catalysts, is also found in comparable Rh catalysts b
ut not Pt catalysts. Aging temperature and Pd loading thresholds to encapsu
lation are compared for supported Pd catalysts made from ceria-zirconia of
varying surface area stability and composition. (C) 1999 Academic Press.