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CU method projected to meet DOE cost targets for solar thermal hydrogen fuel production
Date:5/12/2011

rees Celsius [482 degrees F] and we have eliminated what appears to be a major roadblock in terms of an unstable intermediate by using thin films and a reactive substrate," said Weimer. "It's pretty significant and it seems like there's a good shot for this to become mainstream in the southwest U.S. and other high insolation regions around the world."

Weimer refers to his water-splitting method as a "triple play." It not only uses renewable resources and produces sustainable hydrogen, but it also can purify brackish into potable water -- a byproduct that he says could address water shortage issues in the future.

Weimer is presenting his research today at the DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting in Washington, D.C. Weimer said he hopes to garner continued research support through government and private resources.

The DOE is investigating novel approaches for solar thermochemical water splitting to produce hydrogen with the eventual goal of commercializing production. Cost targets in this analysis set hydrogen production in 2015 at 6 dollars per kilogram -- equal to 2.2 pounds -- and hydrogen delivery in 2025 at 2 to 3 dollars per kilogram. CU-Boulder's thin-film metal ferrite process is projected to meet both benchmarks.

Other technologies appearing in the analysis included reactions with hybrid-sulfur, copper chloride, sulfur-ammonia, zinc oxide, manganese oxide and cadmium oxide.


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Contact: Alan Weimer
alan.weimer@colorado.edu
University of Colorado at Boulder
Source:Eurekalert

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