Photocatalytic conversions of ethanol, initiated by processes of electron phototransfer, in alkoxide-chloride complexes of titanium (in Russian)
A study has been made of the composition of reaction mixtures obtained in the process of photocatalytic formation of molecular hydrogen in ethanol solutions of titanium tetrachloride. It has been established that this process is accompanied by reactions of oxidation and decomposition of the ethanol molecules. Methane, ethane, acetaldehyde, and ethyl chloride have been identified. Kinetic relationships have been found for the formation of these compounds, and the quantum yields have been determined. In the initial stage of irradiation, CH/sub 4/, C/sub 2/H/sub 6/, and CH/sub 3/CHO are obtained. In the second stage, when most of the titanium ions are already in the /sup +/3 state of oxidation, the formation of methane and acetaldehyde ends, and H/sub 2/ and C/sub 2/H/sub 6/ become the main products. Possible reasons for the change in composition of the photolysis products are examined, and the basic features of the mechanism of this photocatalytic process are discussed.
- Research Organization:
- L. V. Pisarzhevskii Institute of Physical Chemistry, Kiev, USSR
- OSTI ID:
- 6151101
- Journal Information:
- Theor. Exp. Chem. (Engl. Transl.); (United States), Vol. 22:1; Other Information: Translated from Teor. Eksp. Khim.; 22: No. 1, 44-51(Jan-Feb 1986)
- Country of Publication:
- United States
- Language:
- Russian
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Related Subjects
10 SYNTHETIC FUELS
14 SOLAR ENERGY
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALKOXIDES
CATALYTIC EFFECTS
ETHANE
PRODUCTION
ETHANOL
HOMOGENEOUS CATALYSIS
PHOTOLYSIS
HYDROGEN PRODUCTION
METHANE
TITANIUM CHLORIDES
TITANIUM COMPLEXES
ACETALDEHYDE
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
ELECTRON SPIN RESONANCE
ELECTRON TRANSFER
HYDROGEN
LIGANDS
OXIDATION
SOLAR ENERGY CONVERSION
VALENCE
ALCOHOLS
ALDEHYDES
ALKANES
CATALYSIS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
CONVERSION
DECOMPOSITION
ELEMENTS
ENERGY CONVERSION
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
HYDROXY COMPOUNDS
KINETICS
MAGNETIC RESONANCE
NONMETALS
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
REACTION KINETICS
RESONANCE
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
YIELDS
080106* - Hydrogen- Production- Biosynthesis & Photochemical Processes
090121 - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)
140505 - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)
400500 - Photochemistry