The oxidation of CO promoted by K atoms is observed on Ni(111) for temperatures ranging from room temperature down to 160 K. The catalytic reaction at 160 K gives rise to the formation of adsorbed CO2 molecules which are stable up to 180 K, above that temperature they completely desorb. The reaction follows the Langmuir-Hinshelwood mechanism and the uptake order of the involved species seems to be of minor importance.
K-promoted oxidation of CO on Ni(111)
CUPOLILLO, Anna;CHIARELLO, Gennaro;FORMOSO, Vincenzo;PACILE', Daniela;Papagno M;
2002-01-01
Abstract
The oxidation of CO promoted by K atoms is observed on Ni(111) for temperatures ranging from room temperature down to 160 K. The catalytic reaction at 160 K gives rise to the formation of adsorbed CO2 molecules which are stable up to 180 K, above that temperature they completely desorb. The reaction follows the Langmuir-Hinshelwood mechanism and the uptake order of the involved species seems to be of minor importance.File in questo prodotto:
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