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Application of Optical Spectroscopy for Study on Process of Hydrogen Synthesis in Electric Discharge in Liquid-Phase Media
https://doi.org/10.15518/isjaee.2020.01-06.077-083
Abstract
In this work, a low-temperature plasma initiated in liquid media between electrodes has been shown to be able to decompose hydrogen containing organic molecules resulting in obtaining gaseous products with volume part of hydrogen higher than 90%. As feedstocks, organic compounds (alcohols, esters) as well as direct water-hydrogen emulsions obtained by ultrasonic treatment are used. It is shown that hydrogen productivity from emulsions is not less than that from individual substances.
Optical spectroscopy is used to confirm the formation of atomic hydrogen in the reactions of plasma decomposition of liquids. The measurement of the amount of the gas mixture formed during the decomposition of organic liquids shows that the output is highly dependent on the discharge current, and also on the volume of the discharge, which can vary depending on the distance between the electrodes in the reaction chamber. In current experiments, the discharge current is from 4A to 8A, the discharge voltage depending on the type of liquid is 30-45 V. It is shown that this is an energy-efficient method for the conversion of liquid-phase compounds, stimulated by a thermally nonequilibrium plasma producing active particles: excited molecules and radicals, which allows one to initiate chain reactions, including energy-branched ones, and thereby significantly accelerate the process of liquid conversion and lower the temperature at which such a conversion can occur.
About the Author
N. A. Bulychev
P.N. Lebedev Physical Institute of RAS;
Moscow Aviation Institute (National Research University)
Russian Federation
Russian Federation
Nikolay Bulychev, D.Sc. in Chemistry, Chief Researcher, P.N. Lebedev Physics Institute; Professor of Physical Chemistry Department of Moscow Aviation Institute
53 Leninsky Ave., 119991, Moscow;
4 Volokolamskoe Drive, Moscow, 125993
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Review
For citations:
Bulychev N.A. Application of Optical Spectroscopy for Study on Process of Hydrogen Synthesis in Electric Discharge in Liquid-Phase Media. Alternative Energy and Ecology (ISJAEE). 2020;(1-6):77-83. (In Russ.) https://doi.org/10.15518/isjaee.2020.01-06.077-083
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