Abstract: A filter for engine exhaust gases includes a housing coupled to an engine to receive engine exhaust gases, and a filter media which is located in the housing. The filter media includes a plurality of filter passages, and a plurality of particles of a transition metal deposited on at least a portion of the filter media. The size of the particles are approximately thirty nanometers or less.

Abstract: A method is provided for applying a coating over a substrate surface of an engine component. The method includes inserting the engine component within a deposition chamber, heating the deposition chamber to a temperature between 325° C. and 500° C., supplying one or more precursors to the heated deposition chamber, subjecting the engine component to the one or more precursors for about five hours to form an inert oxide layer over the substrate surface of the engine component having a thickness of approximately 1-5 microns.