Effect of the Mechanochemical Activation on the Reactivity of Carbon in the Course of Oxidation with Oxygen
Kinetics and Catalysis
, E-ISSN: 1608-3210
Boreskov Institute of Catalysis SB RAS
The effect of the mechanochemical activation of carbon materials of a different nature on their reactivity in the course of oxidation with oxygen is investigated at 573-973 K. The mechanochemical activation is shown to cause a decrease in the apparent activation energy and a rise in the rate of carbon oxidation. The linear dependence of the oxidation rate on the number of strong electron-acceptor sites (EAS) is revealed. It is speculated that strong EAS of carbon materials are oxidation sites, comprising the carbon atoms with unsaturated bonds located on the sides that are perpendicular to the basal planes of the graphite lattice.