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Efficient photodecomposition of methanol sensitized by cadmium sulfide

Journal Article · · High Energy Chem. (Engl. Transl.); (United States)
OSTI ID:5414025
; ; ;
The quantum efficiency of ethylene glycol formation was measured by the periodate method. The yield of ethylene glycol was ca 72% of the yield of H/sub 2/. Since the yield of formaldehyde was ca 25% of the yield of H/sub 2/, decomposition of methane led almost quantitatively to formation of hydrogen, ethylene glycol, and formaldehyde. The quantum efficiency of photolysis of methanol changed in a wide range in relation to the method of preparation and treatment of cadmium sulfide. The CdS obtained by reaction of H/sub 2/S with excess CdSO/sub 4/ contained the least capture centers. The currently achieved quantum efficiency of methanol decomposition, 0.4, corresponds to utilization of 7% of the quantum flux of solar radiation in the spectral region of lambda < 920 nm.
Research Organization:
L.Y. Karpov Physicochemical Sci-Res. Institute
OSTI ID:
5414025
Journal Information:
High Energy Chem. (Engl. Transl.); (United States), Journal Name: High Energy Chem. (Engl. Transl.); (United States) Vol. 19:5; ISSN HIECA
Country of Publication:
United States
Language:
English

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Related Subjects

08 HYDROGEN
080106* -- Hydrogen-- Production-- Biosynthesis &amp; Photochemical Processes
14 SOLAR ENERGY
140501 -- Solar Energy Conversion-- Photovoltaic Conversion
ALCOHOLS
ALDEHYDES
CADMIUM COMPOUNDS
CADMIUM SULFIDE SOLAR CELLS
CADMIUM SULFIDES
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DECOMPOSITION
DIRECT ENERGY CONVERTERS
EFFICIENCY
EQUIPMENT
FORMALDEHYDE
GLYCOLS
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
HYDROGEN SULFIDES
HYDROXY COMPOUNDS
INORGANIC PHOSPHORS
METHANOL
ORGANIC COMPOUNDS
PHOSPHORS
PHOTOCHEMICAL REACTIONS
PHOTOELECTRIC CELLS
PHOTOLYSIS
PHOTOSENSITIVITY
PHOTOVOLTAIC CELLS
QUANTUM EFFICIENCY
SENSITIVITY
SOLAR CELLS
SOLAR EQUIPMENT
SOLAR FLUX
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
TRAPS
YIELDS