Photocatalytic conversions of ethanol, initiated by processes of electron phototransfer, in alkoxide-chloride complexes of titanium

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · Theor. Exp. Chem. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00525303· OSTI ID:6151101

Kryukov, A I; Kuchmii, S Ya; Korzhak, A V; Korol', A N

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), Journal Name: Theor. Exp. Chem. (Engl. Transl.); (United States) Vol. 22:1; ISSN TEXCA
• Country of Publication: United States
• Language: Russian

Related Subjects

08 HYDROGEN
080106* -- Hydrogen-- Production-- Biosynthesis & Photochemical Processes
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
14 SOLAR ENERGY
140505 -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
ACETALDEHYDE
ALCOHOLS
ALDEHYDES
ALKANES
ALKOXIDES
CATALYSIS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
CONVERSION
DECOMPOSITION
ELECTRON SPIN RESONANCE
ELECTRON TRANSFER
ELEMENTS
ENERGY CONVERSION
ETHANE
ETHANOL
HALIDES
HALOGEN COMPOUNDS
HOMOGENEOUS CATALYSIS
HYDROCARBONS
HYDROGEN
HYDROGEN PRODUCTION
HYDROXY COMPOUNDS
KINETICS
LIGANDS
MAGNETIC RESONANCE
METHANE
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
PRODUCTION
REACTION KINETICS
RESONANCE
SOLAR ENERGY CONVERSION
TITANIUM CHLORIDES
TITANIUM COMPLEXES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
VALENCE
YIELDS