Clustering of metal atoms in organic media--6. Solvated metal atoms used for the low-temperature preparation of highly dispersed zero-valent metal catalysts
- Univ. of North Dakota
Nickel, palladium, platinum, or silver were solvated in a suitable solvent at low temperature; alumina or silica was impregnated with the solution; and the solvent was desorbed. Electron microscopic and X-ray studies of the nickel-toluene catalysts showed Vertical Bar3; 40 A., crystallites for up to 9Vertical Bar3< loading, and up to 100 A. crystallites for up to 23Vertical Bar3< loading. Toluene hydrogenation to methylcyclohexane was optimum on a nickel-toluene-alumina catalyst containing approx. 0.4Vertical Bar3< nickel and pretreated under vacuum at 500/sup 0/C. A 6.8Vertical Bar3< nickel-toluene on alumina catalyst was more active for 1-butene hydrogenation to butane than the unsupported catalyst and was active in 1-butene isomerization in the presence of hydrogen, but unlike the unsupported catalyst, it did not catalyze the 1-butene isomerization in the absence of hydrogen. The hydrogenation of 1,3-butadiene proceeded on the 6.8Vertical Bar3< nickel-toluene on alumina catalyst in a manner similar to that on the unsupported catalyst.
- OSTI ID:
- 6922923
- Journal Information:
- J. Catal.; (United States), Vol. 55:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
10 SYNTHETIC FUELS
BUTADIENE
HYDROGENATION
BUTENES
CATALYSTS
CHEMICAL PREPARATION
STRUCTURAL CHEMICAL ANALYSIS
SURFACE PROPERTIES
ALUMINIUM OXIDES
CATALYST SUPPORTS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
EXPERIMENTAL DATA
LOADING
METALS
PHASE TRANSFORMATIONS
SILICA
TOLUENE
ALKENES
ALUMINIUM COMPOUNDS
AROMATICS
CHALCOGENIDES
DATA
DIENES
ELEMENTS
HYDROCARBONS
INFORMATION
MATERIALS HANDLING
MINERALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
POLYENES
SILICON COMPOUNDS
SILICON OXIDES
SYNTHESIS
YIELDS
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
090121 - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)