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Revista mexicana de física
versión impresa ISSN 0035-001X
Resumen
ORREGO, J.A.; CABANZO HERNANDEZ, R. y MEJIA-OSPINO, E.. Structural study of colombian coal by fourier transform infrared spectroscopy coupled to attenuated total reflectance (FTIR-ATR). Rev. mex. fis. [online]. 2010, vol.56, n.3, pp.251-254. ISSN 0035-001X.
The most important Colombian coals were studied using Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) Spectroscopy. The ATR-FTIR spectra were used to obtain structural parameters of coal and correlating these structural parameters with the rank of the coal. The structural parameters, methylene-methyl ratio (CH2/CH3), aromaticity factor (f α), aliphatic-aromatic ratio (Hal /Har) were determined directly from the ATR-FTIR spectra and fα was evaluated from spectra data and an elemental analysis in coals studied here. The aliphatic and aromatic regions were considered between 3000 - 2800 cm-1 and 912 - 670 cm-1, respectively.
Palabras llave : Coal FTIR-ATR; coal rank; colombian coal.