Abstract
The catalytic reduction of NO with H2 and CO has been studied over Co/Al and Cr/Al catalysts prepared by coprecipitation. The data show a much larger difference in the activities of Cr/Al and Co/Al when reducing NO with CO than in the case of H2. In both cases Cr/Al appears to be much more selective to N2 formation than Co/Al. The dependence of the selectivity on temperature is different for the two reductants on the Co/Al catalyst. The results suggest that most of the N2O desorbs from the surface of the Co/Al catalyst before N2 is formed.
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