Hydrothermal Synthesis of a Cerium(IV) Pyrochlore with Low-Temperature Redox Properties

摘要

Oxides containing Ce~(IV) are extensively investigated for their many applications in catalysis.Current interest in these materials arises from their use in solid-oxide fuel cells and depollution catalysts,particularly for automotive exhausts.The key to their catalytic activities is the ability of Ce~(IV) to be reversibly reduced to Ce~(III) at moderate temperatures (less than 500 deg C).