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Chemisorption of methane on silica-supported nickel catalysts: a magnetic and infrared study

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

The adsorption of methane on silica-supported nickel catalysts was studied at various constant temperatures (30/sup 0/C < T < 100/sup 0/C) and at increasing temperatures (30/sup 0/C < T < 300/sup 0/C) using a low-field magnetic method and infrared spectroscopy. In the entire temperature range the chemisorption of CH/sub 4/ was found to be dissociative according to the reaction CH/sub 4/ + 7Ni ..-->.. Ni/sub 3/C (surface nickel-carbide) + 4Ni-H. It was observed that, per unit surface area, small nickel crystallites were more reactive toward methane than were large crystallites.

Research Organization:
State Univ. of Utrecht, Netherlands
OSTI ID:
5719505
Journal Information:
J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 72:2; ISSN JCTLA
Country of Publication:
United States
Language:
English