Selectivity, activity and metal-support interactions of Group VIII bimetallic catalysts. Progress report, 15 August 1984-15 October 1985
Technical Report
·
OSTI ID:6348692
In this report, we outline progress during the last year on our program to investigate bimetallic interaction in the systems Rh-Pt and Ru-Cu. In both cases, we are primarily interested in the effect of support on the nature and degree of interaction. For Rh-Pt, the interacting support is TiO/sub 2/ and the reaction used to probe the interaction is CO hydrogenation. As we had previously deduced from the investigation of hydrogenolysis, the relative activity of the Rh-Pt/TiO/sub 2/ series for CO hydrogenation is consistent with there being Rh enrichment on the small bimetallic clusters. For the Ru-Cu bimetallic system the support of interest is SiO/sub 2/. The degree of interaction between the metals depends on the kind of SiO/sub 2/ used. Hydrogen chemisorption, cyclohexane hydrogenolysis and dehydrogenation were used as the catalytic probes of support effects on metal-metal interaction. As a part of our continuing investigation of support influence on bimetallic interaction, the metal-oxide interaction of Rh/TiO/sub 2/ and Rh/V/sub 2/O/sub 3/ have been compared. While the gross features of and effects on this interaction are the same, the mechanism is apparently different. 23 refs., 1 tab.
- Research Organization:
- Yale Univ., New Haven, CT (USA). Dept. of Chemical Engineering
- DOE Contract Number:
- AC02-81ER10829
- OSTI ID:
- 6348692
- Report Number(s):
- DOE/ER/10829-6; ON: DE86003857
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISORPTION
COPPER
ELEMENTS
HYDROGEN
METALS
METHANATION
MINERALS
NONMETALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
RESEARCH PROGRAMS
RHODIUM
RUTHENIUM
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SORPTION
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
400201* -- Chemical & Physicochemical Properties
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISORPTION
COPPER
ELEMENTS
HYDROGEN
METALS
METHANATION
MINERALS
NONMETALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
RESEARCH PROGRAMS
RHODIUM
RUTHENIUM
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SORPTION
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS