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- W126002502 abstract "A considerable number of infrared studies have been done on the low-temperature oxidation of coal with conflicting results. Because the reactions occurring in coal are dependent on a number of factors such as coal rank, particle size, temperature and humidity, a consensus on the oxidation mechanism(s) has not been achieved. Oxidation has been found to produce ethers, carboxyl groups, and OH functionalities. The formation of a peroxide is generally considered to be the major pathway for the production of new oxygen-containing groups, while at the same time a decrease in the aliphatic CH stretching region is observed corresponding to dehydrogenation. The present study is an attempt to use FTIR to follow the effects of mild weathering conditions on a series of standard coal samples. In one part of the study, the room temperature desorption of moisture from these coals was followed using diffuse reflectance spectroscopy (DRIFT), and in the other part, the coals were weathered at room temperature in water-saturated air and sampled at intervals over a three month period for FTIR and Moessbauer analysis." @default.
- W126002502 created "2016-06-24" @default.
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- W126002502 date "1988-01-01" @default.
- W126002502 modified "2023-09-27" @default.
- W126002502 title "Weathering study of Argonne premium coal samples by FTIR and Moessbauer spectroscopy" @default.
- W126002502 hasPublicationYear "1988" @default.
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