Single-source precursors of structured catalysts for the hydrogenation of 1,3-butadiene
- Univ. of Notre Dame, IN (United States)
The clusters of clusters M[sub 4]O[(CO)[sub 9]Co[sub 3]CCO[sub 2]][sub 6], M = Zn (I), Co (II), are single-source precursors for porous, high surface area materials, referred to as ZnCo and CoCo, respectively. These two cobalt metal based materials were investigated as catalysts for the hydrogenation of 1,3-butadiene under a variety of reaction conditions. Both ZnCo and CoCo are active catalysts in the 50-300[degrees]C temperature range, however, different activities and selectivities for the formation of products are exhibited. At reaction temperatures below 150[degrees]C these catalysts show no loss of activity at up to 4 days on stream. Comparison of the catalytic properties of CoCo with a cobalt-supported alumina catalyst at similar metal loading shows that the cluster-derived catalyst exhibits both higher activity and different selectivity than the conventional supported cobalt catalyst. The observed hydrogenation activity and selectivity of these new materials relative to conventional catalysts or catalysts prepared from simpler precursors suggest that both the composition and microstructure derived from the complex precursor architecture contribute to the catalytic behavior. At reaction temperatures around 300[degrees]C the activity of ZnCo and CoCo catalysts decrease due to the formation of carbon on the surface of the cluster materials and the partial collapse of the porous structure. 22 refs., 9 figs., 2 tabs.
- OSTI ID:
- 5088642
- Journal Information:
- Chemistry of Materials; (United States), Journal Name: Chemistry of Materials; (United States) Vol. 5:9; ISSN CMATEX; ISSN 0897-4756
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BUTADIENE
CARBIDES
CARBON COMPOUNDS
CATALYSIS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COBALT COMPOUNDS
DIENES
HETEROGENEOUS CATALYSIS
HYDROCARBONS
HYDROGENATION
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLYENES
TRANSITION ELEMENT COMPOUNDS
ZINC COMPOUNDS