Stabilization of reactive oxygen species in ceria-based composite aerogels
AssigneeThe Government of the United States of America, as represented by the Secretary of the Navy
InventorsPaul A. DeSario, Debra R. Rolison, Jeffrey W. Long, Robert B. Balow, Travis G. Novak
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Abstract
A composition having a gadolinium-, samarium-, or lanthanum-substituted porous cerium oxide and copper or gold nanoparticles. The composition can be exposed to electromagnetic radiation to form reactive oxygen species in the composition to decompose organophosphonate compounds. The composition may be made by forming a mixture of a cerium salt; a gadolinium, samarium, or lanthanum salt; and an epoxide; forming gel from the mixture; and drying the gel to form an aerogel, a xerogel, or an ambigel. Copper or gold nanoparticles are added or formed at any point in the method.
Claims20
A composition comprising:
- a gadolinium-, samarium-, or lanthanum-substituted porous cerium oxide;
- and
- copper or gold nanoparticles.
A method comprising:
- providing a composition comprising gadolinium-, samarium-, or lanthanum-substituted porous cerium oxide;
- and
- exposing the composition to electromagnetic radiation to form reactive oxygen species in the composition.
A method comprising:
- forming a mixture comprising:
- a cerium salt;
- a gadolinium, samarium, or lanthanum salt;
- and
- an epoxide;
- forming a gadolinium-, samarium-, or lanthanum-substituted cerium oxide gel from the mixture;
- drying the gel to form an aerogel, a xerogel, or an ambigel;
- adding or forming copper or gold nanoparticles at any point in the method.
Dependencies are inferred from the claim text.