Characterization and catalytic studies on supported Pt-Ru bimetallic clusters

Conference · Mon Jan 31 23:00:00 EST 1983 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:5725894

Miura, H M ^[1]; Gonzalez, R D

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1. Saitama Univ., Japan

A study was made relating the change in the rate of chemical reactions to changes in the surface composition of the catalyst. The catalyst used was platinum-ruthenium bimetallic clusters on silica supports and alumina supports. The reactions studied included methanation, Fischer-Tropsch, cyclohexane hydrogenolysis and dehydrogenation of cyclohexane. It was concluded that surface enrichment of the Pt occurred in all Pt-Ru bimetallic cluster catalysts studied. Also, dilution of the silica-supported Pt-Ru bimetallic clusters with Pt increases the selectivity for methane formation, thereby decreasing the selectivity of the Fischer-Tropsch products. It was also concluded that reactions between Co and H occurs nearly exclusively on the Ru sites. The fact that the rate of cyclohexane hydrogenolysis was observed to decrease linearly as the surface concentration of Pt was increased was also determined.

• OSTI ID: 5725894
• Report Number(s): CONF-830303-
• Journal Information: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Vol. 28:2; ISSN ACPCA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CYCLOALKANES
CYCLOHEXANE
DEHYDROGENATION
ELEMENTS
FISCHER-TROPSCH SYNTHESIS
HYDROCARBONS
KINETICS
METALS
METHANATION
MINERALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
REACTION KINETICS
RUTHENIUM
SILICA
SILICON COMPOUNDS
SILICON OXIDES
TRANSITION ELEMENTS