Borided metal catalysts in methanation of carbon monoxide

Journal Article · Wed Oct 01 04:00:00 EDT 1980 · J. Catal.; (United States)

OSTI ID:6579046

Uken, A H; Bartholomew, C H

Unsupported metal borides were prepared by reduction at 273 to 300 K of Ni/sup II/ and Co/sup II/ by sodium borohydride in aqueous and ethanolic solvents in the presence and absence of noble metal promoters. These materials were further activated by H/sub 2/ reduction at 675 to 725 K which resulted generally in borided metals having higher metal: boron ratios than commonly encountered in the chemically reduced materials. Chemical, physical, and catalytic properties were determined by chemical analysis, BET surface area measurements, H/sub 2/ adsorption measurements, and reactor studies of methanation activity/selectivity properties at 1 atm and 475 to 675 K. Though generally slightly less active and selective than commercial Raney nickel, borided nickel catalysts are nevertheless very effective methanation catalysts compared to pure nickel. Borided cobalt is apparently as active as Raney nickel on a site basis but less selective for CH/sub 4/ production. Ruthenium- and rhodium-promoted nickel borides are slightly more active and about as selective for methane production as unsupported nickel.

• Research Organization: Brigham Young Univ., Provo, UT
• OSTI ID: 6579046
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 65:2; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
BORIDES
BORON COMPOUNDS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COBALT BORIDES
COBALT COMPOUNDS
DATA
ELEMENTS
EXPERIMENTAL DATA
GRAPHS
INFORMATION
METALS
METHANATION
NICKEL BORIDES
NICKEL COMPOUNDS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
REFRACTORY METALS
RHODIUM
RUTHENIUM
SYNTHESIS
TABLES
TEMPERATURE EFFECTS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS