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New synthesis method may shape future of nanostructures, clean energy
Date:9/2/2014

n large scale water splitting applications.

"Using our new modular synthesis strategy, our UMD team created an optimally designed, plasmon-mediated photocatalytic nanostructure that is an almost 15 times more efficient than conventional photocatalysts," says Ouyang.

In studying this new photocatalyst, the scientists identified a previously unknown "hot plasmon electron-driven photocatalysis mechanism with an identified electron transfer pathway."

It is this new mechanism that makes possible the high efficiency of the UMD team's new photocatalyst. And it is a finding made possible by the precise materials control allowed by the team's new general synthesis method.

Their findings hold great promise for future advances that could make water splitting cost effective for large-scale use in creating hydrogen fuel. Such a system would allow light energy from large solar energy farms to be stored as chemical energy in the form of clean hydrogen fuel. And the UMD team's newly-discovered mechanism for creating hot (high energy) electrons should also be applicable to research involving other photo-excitation processes, according to Ouyang and his colleagues.


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Contact: Lee Tune
ltune@umd.edu
301-405-4679
University of Maryland
Source:Eurekalert

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