Carbon doping of ceria-supported palladium for the low-temperature oxidation of methane

Cerium oxide-supported palladium nanoparticles (Pd/CeO 2 ) are carburized to form PdC x nanoparticles, which act as a precursor to develop a highly active catalyst toward the remediation of lean-burn exhausts at a “cold start” (operation temperature <300 °C).