Influence of nature of support on composition and structure of supported molybdenum heteropoly compounds

Journal Article · Sun Feb 01 04:00:00 EST 1987 · Kinet. Catal. (Engl. Transl.); (United States)

OSTI ID:5886659

Goncharova, O I; Yur'eva, T M; Davydov, A A

IR spectroscopy has been used in an investigation of the phase composition of catalysts prepared from SiO/sub 2/, TiO/sub 2/, and ..gamma..-Al/sub 2/O/sub 3/ by the deposition of molybdenum 6-series heteropoly compounds (HPCs) with central atoms of copper, cobalt, and iron, and also 12-series HPCs - namely, Si-Mo and P-Mo heteropoly acids and their copper and cobalt salts. It has been shown that the 6-series HPCs break down when they are deposited on the support; on the SiO/sub 2/ surface, they form mixed Si-Mo-M HPCs, and on Al/sub 2/O/sub 3/ they form Al-Mo HPCs of the 6-series. Composition of catalysts obtained by the deposition of 12-series HPCs on supports depends on the acid-base properties of the support and on the pH interval within which the HPC is stable.

• Research Organization: Institute of Catalysis, Novosibirsk, USSR
• OSTI ID: 5886659
• Journal Information: Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 27:4; ISSN KICAA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360602 -- Other Materials-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMMONIUM COMPOUNDS
CATALYSIS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
COBALT COMPOUNDS
COMPARATIVE EVALUATIONS
COPPER COMPOUNDS
DEPOSITION
ENERGY LEVELS
EXCITED STATES
HETEROGENEOUS CATALYSIS
HETEROPOLY ACIDS
HYDROGEN COMPOUNDS
INFRARED SPECTRA
INORGANIC ACIDS
IRON COMPOUNDS
METALLURGICAL EFFECTS
MOLYBDATES
MOLYBDENUM COMPOUNDS
MOLYBDOPHOSPHORIC ACID
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHOSPHORUS COMPOUNDS
REFRACTORY METAL COMPOUNDS
SILICON COMPOUNDS
SILICON OXIDES
SPECTRA
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
VALENCE
VIBRATIONAL STATES