The Use of Mechanical Activation of Polyvinyl Chloride in the Presence of Alkalis for Synthesis of Porous Carbon Materials

The synthesis of porous carbon materials was carried out by mechanochemical dehydrochlorination of polyvinyl chloride in the presence of alkalis (KOH, LiOH) using a high-energy planetary mill and the subsequent two-stage heat treatment of the obtained polyvinylenes (polymers with a conjugated double bond system)—carbonization to 400°C and carbon dioxide at 850°C or alkaline activation and 800°C, respectively. The structure of the obtained products was studied by Raman spectroscopy and transmission electron microscopy, analysis of isotherms of low-temperature adsorption/desorption of nitrogen. The resulting products are (micro-, meso-) porous amorphous carbon materials with specific surface SBET from 460 to 605 m2/g, micropore volume from 0.09 to 0.21 cm3/g, and mesopore volume from 0.09 to 0.6 cm3/g