Catalysis of carbon monoxide isotope exchange reaction by molybdenum
- 1 January 1968
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Transactions of the Faraday Society
- Vol. 64, 516-521
- https://doi.org/10.1039/tf9686400516
Abstract
The initial sticking probability of carbon monoxide on a molybdenum filament is 0.3, and is essentially independent of filament temperature between 296 and 820°K. When the filament saturated with carbon monoxide is heated, the adsorbed gas is evolved in two separate bursts which start at filament temperatures of about 450 and 850°K. Above a temperature of approximately 1100°K the filament catalyzes the carbon monoxide isotope equilibration reaction 12C18O+13C16O =12C16O+13C18O with an efficiency of approximately 50 %. The reaction first becomes measurable at the same temperature at that as which desorption of the more strongly-bonded carbon monoxide occurs.Keywords
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