SYNTHESIS OF CARBON MATERIALS BY THE IMPOSITION OF A HIGH MAGNETIC FIELD

摘要

Carbon materials produced from organic materials as a precursor are generally subjected to three heat treatment processes of stabilization and carbonization followed by graphitization. A high magnetic field was imposed in the thermal decomposition reactions of carbon materials. Thermal decomposition reactions such as solid-phase, liquid-phase and gas-phase reactions have been used. It is found that the magnetic field imposed along with the heat treatment controls the magnetic shape and increases the tensile strength of carbon materials formed by thermal decomposition reactions. The mechanism of magnetic shape control and increase of the tensile strength due to the imposition of a high magnetic field is discussed based on an intermolecular cross-linking reaction model in which the radical pair theory is modified by accounting for the magnetic field.