Abstract
The effects of thickness-extensional mode resonance oscillation (TERO) on the catalytic activity for CO oxidation of thin TiO 2 and NiO films deposited on a z-cut LiNbO 3 ( z-LN) single crystal were investigated. TERO at 3 W caused 4 – 7-fold increases in the catalytic activity of TiO 2/ z-LN and NiO/ z-LN and remarkable decreases in the activation energy of the reaction. Vertical lattice displacement by TERO was decreased remarkably by the presence of the metal oxides. The catalyst activation is due to the interactions of TERO with the carriers in the semiconductor metal oxides.
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