Onset of catalytic activity of gold clusters on titania with the appearance of nonmetallic properties
@article{Valden1998OnsetOC, title={Onset of catalytic activity of gold clusters on titania with the appearance of nonmetallic properties}, author={Valden and Lai and Goodman}, journal={Science}, year={1998}, volume={281 5383}, pages={ 1647-50 } }
Gold clusters ranging in diameter from 1 to 6 nanometers have been prepared on single crystalline surfaces of titania in ultrahigh vacuum to investigate the unusual size dependence of the low-temperature catalytic oxidation of carbon monoxide. Scanning tunneling microscopy/spectroscopy (STM/STS) and elevated pressure reaction kinetics measurements show that the structure sensitivity of this reaction on gold clusters supported on titania is related to a quantum size effect with respect to the… CONTINUE READING
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