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), Journal Name: J. Catal.; (United States) Vol. 55:2; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Hydrogenation of alkadienes. 9. 1,3-butadiene hydrogenation catalyzed by rhenium and by sulfur-contaminated rhenium
Related Subjects
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKENES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
BUTADIENE
BUTENES
CATALYST SUPPORTS
CATALYSTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DATA
DIENES
ELEMENTS
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGENATION
INFORMATION
LOADING
MATERIALS HANDLING
METALS
MINERALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
POLYENES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
STRUCTURAL CHEMICAL ANALYSIS
SURFACE PROPERTIES
SYNTHESIS
TOLUENE
YIELDS