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Methanation of carbon monoxide on nickel and nickel--copper alloys

Journal Article · · J. Catal.; (United States)

Methanation of CO and CO/sub 2/, disproportionation of CO, and hydrogenation of carbon deposited on the surface of catalysts have been studied on Ni and Ni--Cu alloy films at low pressures, at temperatures of 250 to 350/sup 0/C. Under these reaction conditions, two steps of the overall mechanism have been identified; namely, dissociation of CO and hydrogenation of deposited carbon by adsorbed hydrogen. CO can be dissociated only on places where carbon atoms can be bound to several Ni atoms simultaneously; therefore addition of Cu to Ni strongly reduces the rate of methanation.

Research Organization:
Rijksuniversiteit, Leiden
OSTI ID:
7348177
Journal Information:
J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 44:3; ISSN JCTLA
Country of Publication:
United States
Language:
English