Effect of silica support texture and anion of impregnating solution on Ru dispersion and on Ru-Cu interaction

Journal Article · Thu Dec 01 04:00:00 EST 1983 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(83)90018-0· OSTI ID:6141535

Haller, G L; Resasco, D E; Wang, J

Three sets of Ru and Ru-Cu catalysts were prepared by different methods and were placed on different types of silica supports which have been used by various groups of experimentalists. The initial reduction temperature (773 and 723/sup 0/K) and the volume of solution/g of support were judged not to be critical preparation variables in this study - the ethane hydrogenation activity. Little evidence exists for Ru-Cu interaction in the H/sub 2/ chemisorption. The anions of the impregnating solution and the texture do not directly affect Cu-Ru interactions, but may do so indirectly by their effect on the dispersion of Ru. Apparently nitrate complexes of Ru undergo stronger ion exchange on silica than do chloride containing complexes. The resulting better dispersion of Ru with its accompanying segregation decreases the likelihood of Ru-Cu interaction. This interpretation is undergoing further study. 2 figures, 1 table.

• Research Organization: Yale Univ., New Haven, CT
• OSTI ID: 6141535
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 84:2; ISSN JCTLA
• Country of Publication: United States
• Language: English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKANES
ALLOYS
ANIONS
CATALYSTS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHEMISORPTION
CHLORIDES
CHLORINE COMPOUNDS
COMPARATIVE EVALUATIONS
COPPER
COPPER COMPOUNDS
COPPER NITRATES
ELEMENTS
ETHANE
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
HYDROGEN
HYDROGENATION
IMPREGNATION
ION EXCHANGE
IONS
METALS
MINERALS
MOLECULAR STRUCTURE
MOLECULAR WEIGHT
NITRATES
NITROGEN COMPOUNDS
NONMETALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METAL ALLOYS
PLATINUM METALS
REFRACTORY METAL COMPOUNDS
RUTHENIUM
RUTHENIUM ALLOYS
RUTHENIUM CHLORIDES
RUTHENIUM COMPOUNDS
RUTHENIUM NITRATES
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS