Article,
The adsorption and catalytic oxidation of carbon monoxide on evaporated palladium particles
Surf. Sci., (1980)
DOI: 10.1016/0039-6028(81)90313-7
Abstract
Palladium crystallites, evaporated in UHV on a alpha-Al2O3 single
crystal support and characterized by transmission electron microscopy
(TEM), have been used as catalysts for the low pressure oxidation
of carbon monoxide between 450 and 550 K. Average particle diameters
varied between 1.5 and 8 nm. The turnover rate N, i.e. the number
of molecules of CO2 made per second per surface palladium atom was
measured. The number of surface palladium atoms was determined by
combining TEM and temperature programmed desorption of CO. Values
of N, under constant conditions, were practically identical on all
samples. It is noted that the reaction studied is structure insensitive
on palladium.
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