Preparation and characterization of ZrO/sub 2/ stabilized with Ru(iv) and La(iii). Technical report
Technical Report
·
OSTI ID:6975385
Ruthenium oxide, dispersed on oxide supports such as TiO/sub 2/, SiO/sub 2/, and ZrO/sub 2/, is known to show Fischer-Tropsch activity. Little is known about the catalyst-support interactions which must play an important role in the catalytic-activity of dispersed ruthenium oxide. The strength of catalytic support interaction may be directly related to the stability of the dispersed catalyst towards reduction. Hence, solid solutions of Ru(IV)/ZrO/sub 2/ were prepared, and the resulting stability of Ru(IV) toward reduction with hydrogen was measured and compared with that of bulk RuO/sub 2/. The observed increase in stability toward reduction was related to interaction between RuO/sub 2/ and ZrO/sub 2/. The introduction of a small amount of La/sub 2/O/sub 3/ with the ZrO/sub 2/ produced further stabilization of the Ru(IV) toward reduction.
- Research Organization:
- Brown Univ., Providence, RI (USA). Dept. of Chemistry
- OSTI ID:
- 6975385
- Report Number(s):
- AD-A-190868/0/XAB; TR-14
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
DISPERSIONS
DOCUMENT TYPES
ELEMENTS
HYDROGEN
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MIXTURES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PROGRESS REPORT
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
RUTHENIUM COMPOUNDS
RUTHENIUM OXIDES
SOLID SOLUTIONS
SOLUTIONS
STABILIZATION
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
DISPERSIONS
DOCUMENT TYPES
ELEMENTS
HYDROGEN
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MIXTURES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PROGRESS REPORT
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
RUTHENIUM COMPOUNDS
RUTHENIUM OXIDES
SOLID SOLUTIONS
SOLUTIONS
STABILIZATION
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES