Acoustic wave enhancement of the catalytic oxidation of carbon monoxide over Pt{110}

Clear evidence for the nonthermal acoustic wave enhancement of a catalytic reaction over a single crystal metal surface under controlled conditions is provided in this Letter. Data demonstrating a fourfold increase in the rate of CO oxidation over a thin Pt{110} catalyst bonded onto the surface of a piezoelectric interdigital transducer is discussed here together with a possible mechanism for this effect.