Possibilities of Regulating the Texture Parameters of Porous Carbon Materials Obtained by Alkaline Dehydrochlorination of Polyvinyl Chloride with Subsequent Heat Treatment of Forming Polyvinylenes

Synthesis of porous carbon materials has been carried out in two ways—by chemical and mechanochemical dehydrochlorination of polyvinyl chloride in the presence of alkali and subsequent two-stage heat treatment of the obtained polyvinylenes (carbonization up to 400°C and carbon dioxide or alkaline ac...

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Bibliographic Details
Published in:Protection of metals and physical chemistry of surfaces 2021-07, Vol.57 (4), p.806-810
Main Authors: Kryazhev, Yu. G., Anikeeva, I. V., Gulyaeva, T. I., Arbuzov, A. B., Trenikhin, M. V.
Format: Article
Language:English
Subjects:
Carbon
Carbon dioxide
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion and Coatings
Dehydrochlorination
Heat treatment
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Low temperature
Materials and Coatings
Materials Science
Metallic Materials
New Substances
Polyvinyl chloride
Porous materials
Synthesis
Tribology
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Summary:Synthesis of porous carbon materials has been carried out in two ways—by chemical and mechanochemical dehydrochlorination of polyvinyl chloride in the presence of alkali and subsequent two-stage heat treatment of the obtained polyvinylenes (carbonization up to 400°C and carbon dioxide or alkaline activation at a temperature of 850—900 and 800°C, respectively). The products obtained were studied by transmission electron microscopy and low-temperature nitrogen adsorption. It is shown that, depending on the synthesis conditions, carbon materials after activation have a developed specific surface area of 350–1100 m 2 /g and specific pore volume 0.3–0.47 cm 3 /g with a variable contribution of micropores from 30 to 85%. Thus, the effectiveness of the chosen approach to the controlled synthesis of porous CMs from PVC is confirmed.
ISSN:2070-2051
2070-206X
DOI:10.1134/S2070205121040134