Hydrogen interaction with Pd/Ce0.8Zr0.2O2 nanocomposites prepared by microemulsion, coprecipitation and supercritical CO2 treatment Original Research Article

Nanocrystalline Ce0.8Zr0.2O2 solid-solutions (CZ) were synthesized by microemulsion (ME80), co-precipitation (CP80) and co-precipitation followed by supercritical CO2 post-treatment (SC80). Structural, microstructural and textural characterizations of oxides were performed and correlated with their redox properties. The results are consistent with the formation of solid solutions with high surface area (SBET ∼ 200 m2 g−1), constituted by nanoparticles (4–6 nm) with a fluorite type structure but different mesoporosity.