Nonstoichiometric Perovskite-Type Oxides for
Solar Thermal Fuels Production
Michael Sanders, Jianhua Tong, Meng Shang, and Ryan O’Hayre
Summary: Characterization of promising non-stoichiometric-perovskite-type oxide catalysts for
solar thermochemical fuel productions
Description: Solar thermochemical (STC) fuel production is a process that utilizes concentrated
solar radiation to thermochemically split water molecules to hydrogen and oxygen. While this
process has high theoretically efficiencies, current STC methods fall significantly short of this
potential and are primarily limited by the lack of adequate redox materials. This invention
relates to a STC method that utilizes non-stoichiometric-perovskite-type oxides. A framework
was developed for implementing the rapid screening and characterization of promising oxide
candidates by x-ray diffraction and a novel thermogravimetric STC redox cycle screening
experiment. Several perovskites with thermodynamic redox properties are potentially highly
active catalysts for the solar-thermal splitting of water as well as carbon dioxide decomposition
and synthesis gas production.
Main Advantages of this Invention
 High-efficiencies
Potential Areas of Application
 Biofuel production
ID number: 13023
Intel ectual Property Status: US utility patent pending (application 14/621,091)
Opportunity: We are seeking an exclusive or non-exclusive licensee for marketing,
manufacturing, and sale of this technology.
For more information contact:
William Vaughan, Director of Technology Transfer
Colorado School of Mines, 1500 Illinois Street, Guggenheim Hall Suite 314, Golden, CO 80401
Phone: 303-384-2555; e-mail: