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General Information
Categories: advanced materials, energy
BSA 05-12: Platinum-Metal Oxide Composite Particles
BNL Reference Number: BSA 05-12
Patent Status: U.S. Patent Number 8,062,552 was issued on November 22, 2011
Summary
Results of a density functional theory calculation of atomic positions of platinum on an oxide surface, showing good agreement with experimental results.
Platinum is the most efficient electrocatalyst for accelerating the oxygen reduction reaction in fuel cells. Under operating conditions, though, platinum catalysts can dissolve. When used in place of pure platinum, platinum-metal oxide composites can spare the precious metal when used as fuel cell catalysts.
Description
Platinum-metal oxide composite particles are used to prevent the oxidation of the platinum electrocatalyst in the cathodes of fuel cells.
Benefits
The platinum-metal oxide composites are resistant to oxidation and dissolution in oxygen-reducing cathodes which improves the stability and efficiency of the fuel cell significantly.
Applications and Industries
Fuel cell catalysts; oxygen reduction; heterogeneous catalysis.
Journal Publication
Have Questions?
For more information about this technology, contact Kimberley Elcess, (631) 344-4151.
