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[摘要]：Photothermoluminescence (PTL) of petroleum luminophores of pyrolytic origin was studied over a wide temperature range (-196 to 250A degrees C). Problems related to the mechanism and stages of photochemical processes in petroleum luminophores are discussed. It was revealed that low-temperature PTL maximums at -165, -108, and -75A degrees C are due to recombination of trapped electrons with radical cations of polycyclic aromatic hydrocarbons (PAHs) during the freezing out of the motions of H, O-2, and R-center dot. High-temperature (relative to the luminophore freezing points) PTL maximums at 52, 105-120, and 130-140A degrees C are due to processes associated with the oxidation of R-center dot, PAHs, and olefins by O-3(2) and O-1(2). |
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