Ultrasound driven formation of metal-supported nanocatalysts

Bimetal nanocatalysts with a narrow pore size distribution and high surface area were prepared using a fast, easy and “green” method of ultrasound irradiation in water. The concept is demonstrated for the case of aluminum–gold, silver or platinum, but applicable to a large range of nanoparticles. The application as effective nanocatalysts is shown.

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► Controllable formation of mesoporous metal structures by ultrasound irradiation.
► Filling of porous metal matrices with nanoparticles by ultrasound.
► Catalytic activity is shown by the reaction of hexacyanoferrate (III) and S2O3-2.