Investigation of the adsorption of methane on n-A1/sub 2/O/sub 3/ by IR spectroscopy in diffusely scattered light
Journal Article
·
· Dokl. Phys. Chem. (Engl. Transl.); (United States)
OSTI ID:7255418
The authors spectroscopically investigate the reaction of methane (deuteromethane) with the surface of n-A1/sub 2/O/sub 3/ by using a highly sensitive procedure for the recording of IR spectra in diffusely scattered light. The spectrum of methane (deuteromethane) in the region of C-H (C-D) valence oscillations, adsorbed on A1/sub 2/O/sub 3/ at an equilibrium pressure of 6.5 X 10/sup 2/ N/m/sup 2/ and room temperature is presented. It is shown that centers for the molecular and dissociative adsorption of methane exist on the dehydroxylated surface of aluminum oxide which differ in their nature. The centers of molecular adsorption are acid-base pairs A1/sup +/O/sup -/ at which polarization of the C-H bonds of the adsorbed CH/sub 4/ molecules takes place. In the case of dissociative adsorption OH groups are formed which participate at room temperature in the H-D exchange with molecular deuterium and deuteromethane.
- Research Organization:
- N.D. Zelinskii Institute of Organic Chemistry, Acad. of Sci., Moscow
- OSTI ID:
- 7255418
- Journal Information:
- Dokl. Phys. Chem. (Engl. Transl.); (United States), Journal Name: Dokl. Phys. Chem. (Engl. Transl.); (United States) Vol. 284:1-3; ISSN DKPCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
090110* -- Hydrocarbon Fuels-- Properties-- (1979-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ADSORPTION
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL BONDS
CHEMICAL REACTION KINETICS
DEUTERIUM COMPOUNDS
DISSOCIATION
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN TRANSFER
INFRARED SPECTRA
KINETICS
METHANE
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PRESSURE DROP
REACTION KINETICS
SORPTION
SORPTIVE PROPERTIES
SPECTRA
SURFACE PROPERTIES
VALENCE
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ADSORPTION
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL BONDS
CHEMICAL REACTION KINETICS
DEUTERIUM COMPOUNDS
DISSOCIATION
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN TRANSFER
INFRARED SPECTRA
KINETICS
METHANE
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PRESSURE DROP
REACTION KINETICS
SORPTION
SORPTIVE PROPERTIES
SPECTRA
SURFACE PROPERTIES
VALENCE