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Autogenic reaction synthesis of photocatalysts for solar fuel generation

Patent ·
OSTI ID:1248021

In one preferred embodiment, a photocatalyst for conversion of carbon dioxide and water to a hydrocarbon and oxygen comprises at least one nanoparticulate metal or metal oxide material that is substantially free of a carbon coating, prepared by heating a metal-containing precursor compound in a sealed reactor under a pressure autogenically generated by dissociation of the precursor material in the sealed reactor at a temperature of at least about 600.degree. C. to form a nanoparticulate carbon-coated metal or metal oxide material, and subsequently substantially removing the carbon coating. The precursor material comprises a solid, solvent-free salt comprising a metal ion and at least one thermally decomposable carbon- and oxygen-containing counter-ion, and the metal of the salt is selected from the group consisting of Mn, Ti, Sn, V, Fe, Zn, Zr, Mo, Nb, W, Eu, La, Ce, In, and Si.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
UCHICAGO ARGONNE, LLC (Chicago, IL)
Patent Number(s):
9,314,770
Application Number:
13/247,759
OSTI ID:
1248021
Country of Publication:
United States
Language:
English

References (9)

Photocatalytic Surfaces: Environmental Benefits of Nanotitania§~!2008-09-11~!2008-09-20~!2009-01-30~! journal February 2010
Photocatalytic property of TiO2 loaded with SnO2 nanoparticles journal December 2006
Electrocatalytic conversion of CO2 to long carbon-chain hydrocarbons journal January 2007
High-Rate Solar Photocatalytic Conversion of CO 2 and Water Vapor to Hydrocarbon Fuels journal February 2009
Photoelectrocatalytic reduction of carbon dioxide in aqueous suspensions of semiconductor powders journal February 1979
Enhancing the Sensitivity of Oxygen Sensors through the Photocatalytic Effect of SnO2/TiO2 Film journal January 2005
Photocatalytic reduction of carbon dioxide into gaseous hydrocarbon using TiO2 pellets journal June 2006
Preparation and properties of a nano TiO2/Fe3O4 composite superparamagnetic photocatalyst journal September 2009
Synthesis and characterization of Fe-doped CeO2 nanoparticles and their photocatalytic activities
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  • 2010 5th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS 2010), 2010 IEEE 5th International Conference on Nano/Micro Engineered and Molecular Systems https://doi.org/10.1109/NEMS.2010.5592142
conference January 2010