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Methanation of carbon monoxide on nickel and nickel-copper alloys
- Source :
- Journal of Catalysis. 44:439-448
- Publication Year :
- 1976
- Publisher :
- Elsevier BV, 1976.
-
Abstract
- Methanation of CO and CO 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 250–350 °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.
Details
- ISSN :
- 00219517
- Volume :
- 44
- Database :
- OpenAIRE
- Journal :
- Journal of Catalysis
- Accession number :
- edsair.doi...........c89c564196626e4a9763e9b36b528bd7