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US 12,161,996 B2Granted
Low-temperature diesel oxidation catalysts using TiO2 nanowire arrays integrated on a monolithic substrate
AssigneeUniversity of Connecticut
InventorsPu-Xian Gao, Son Hoang
Life of this patent
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Abstract
Metal oxide nanoarrays, such as titanium oxide nanoarrays, having a platinum group metal dispersed thereon and methods of making such nanoarrays are described. The platinum group metal can be dispersed on the metal oxide nanoarray as single atoms. The nanoarrays can be used to catalyze oxidation of combustion exhaust.
Claims12
A device for providing catalytic oxidation of gases within an exhaust, the device comprising:
- a monolithic substrate comprising a plurality of surfaces arranged to provide a plurality of passageways that permit a flow of the exhaust therethrough, each of the surfaces comprising a plurality of nanoarrays of nanowires protruding therefrom and into a respective one of the passageways;
- and a material providing catalytic activity dispersed into the substrate and the plurality of nanoarrays;
- wherein at least one of the nanoarrays in the plurality of nanoarrays comprises rutile titanium dioxide (TiO2).
Dependencies are inferred from the claim text.