June 11, 2013

Exposure to Air Transforms Gold Alloys Into Catalytic Nanostructures



Brookhaven Lab scientists create novel core-shell gold-indium oxide nanoparticles through room-temperature oxidation

Gold bars may signify great wealth, but the precious metal packs a much more practical punch when shrunk down to just billionths of a meter. Unfortunately, unlocking gold's potential often requires complex synthesis techniques that produce delicate structures with extreme sensitivity to heat.

Now, scientists at the U.S. Department of Energy's Brookhaven National Laboratory have discovered a process of creating uniquely structured gold-indium nanoparticles that combine high stability, great catalytic potential, and a simple synthesis process. The new nanostructures—detailed online June 10 in the Proceedings of the National Academy of Sciences—might enhance many different commercial and industrial processes, including acting as an efficient material for catalytic converters in cars.