Nanostructured ceria-silver synthesized in a one-pot redox reaction catalyzes carbon oxidation

J Am Chem Soc. 2010 Sep 29;132(38):13154-5. doi: 10.1021/ja105403x.


We introduce a new concept for a nanomaterial in terms of both synthesis and properties. The nanomaterial, aggregates of ceria particles around central silver metal (CeO(2)-Ag), was fabricated by a one-pot selective redox reaction using cerium(III) and silver(I) autocatalyzed by silver metal without the need for surfactants or organic compounds. This unique nanostructure is suitable as a catalyst, in contrast to core-shell materials wherein the shell deactivates the catalyst metal. The material was developed to be intimately related to catalytic carbon oxidation.