ESCA studies of methanation catalysts derived from intermetallic compounds

Journal Article · Thu Oct 30 04:00:00 EST 1980 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100459a014· OSTI ID:6320209

Chin, R L; Elattar, A; Wallace, W E; Hercules, D M

Studies of methanation catalysts derived from intermetallic compounds provided evidence that the high activity previously reported for ThNi/sub 5/ for the methanation reaction was due to a surface enrichment of the catalyst with nickel during reduction in hydrogen at 300/sup 0/C or during the reaction of carbon monoxide with hydrogen. The less active thorium oxide/nickel catalyst prepared by a conventional impregnation method had a much lower surface concentration of metallic nickel. The deactivation of the ThCo/sub 5/ intermetallic compound by deposition of graphitic carbon was also confirmed.

• Research Organization: Univ. of Pittsburgh
• OSTI ID: 6320209
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 84:22; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ACTINIDE COMPOUNDS
ALLOYS
CARBON
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
DATA
DEACTIVATION
DEPOSITION
ELECTRON SPECTROSCOPY
ELEMENTS
EXPERIMENTAL DATA
IMPREGNATION
INFORMATION
INTERMETALLIC COMPOUNDS
METHANATION
NICKEL COMPOUNDS
NONMETALS
NUMERICAL DATA
REDUCTION
SPECTROSCOPY
SURFACE PROPERTIES
SYNTHESIS
THORIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS