ESR study of some coals in various organic solvents under an adiabatic rapid passage condition at high temperature.

概要

論文の詳細を見る
The ESR spectra of Miike and Taiheiyo coals in various organic solvents were measured under an adiabatic rapid passage condition in the temperature range of 50°C to 350°C. A parameter, R, was defined by a ratio of out-of-phase and in-phase spectral amplitudes, and the ratios for these coal-solvent mixtures were estimated in this temperature range. R for coal in a good solvent decreased abruptly with increasing temperature. Because of the constant modulation frequency, the decrease of R is considered to be due to the decrease of T1. The drastic decrease of T<SUB>1</SUB> may be concluded to be caused due to dissolution and/or swelling of coal on the basis of the molecular mobility dependence of T<SUB>1</SUB> and the solubilization ability of the solvent.
一般社団法人日本エネルギー学会の論文