Homogeneous cerium oxide-titanium oxide composite thin film
AssigneeKing Fahd University of Petroleum and Minerals
InventorsMuhammad Ali EHSAN, Abdul REHMAN
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Abstract
A simple, one-step method for producing a homogenous CeO2—TiO2 composite thin film using aerosol-assisted chemical vapor deposition (“CVD”) of a solution containing triacetatocerium (III) and tetra isopropoxytitanium (IV) on a fluorine-doped tin oxide (“FTO”) substrate at a temperature ranging from about 500 to about 650° C. Methods for using the film produced by this method.
Claims20
The homogenous CeO2—TiO2 composite thin film of claim 11 formed by a method comprising:
- dispersing a solution of metal trifluoroacetates of cerium and titanium in a carrier gas to form an aerosol mist,
- conducting aerosol-assisted chemical vapor deposition (“AACVD”) at a temperature in a range of from 500 to 650° C. with the aerosol mist,
- contacting the aerosol mist, in the AACVD, with a fluorine-doped tin oxide substrate, thereby depositing the homogenous CeO2—TiO2 composite film onto the fluorine-doped tin oxide substrate.
(canceled)
The homogenous CeO2—TiO2 composite thin film of claim 7, wherein the method of making the homogenous CeO2—TiO2 composite thin film, the reacting is conducted in methanol.
(canceled)
(canceled)
A homogenous CeO2—TiO2 composite thin film, comprising
- uniformly dispersed crystalline CeO2 and TiO2 phases, and
- mesoporous or smooth microspheres comprising CeO2 and/or TiO2 having an average diameter ranging from about 0.8 to 2.0 μm,
- wherein said thin film has a thickness of no more than 100 nm.
15-20. (canceled)
Dependencies are inferred from the claim text.