Photoacoustic Infrared Spectra (IR-PAS) of Aged and Fresh-Cleaved Coal Surfaces

Abstract

The application of the newly developed technique of photoacoustic infrared spectroscopy, using a Fourier transform infrared spectrometer, to the measurement of the infrared spectra of single slabs of various coal types is described. The effects of aging of coal surfaces, which include both oxidation and abrasion, are clearly apparent in a comparison of the spectra of freshly cleaved and aged coal surfaces.

Keywords

Infrared Infrared photoacoustic Coal spectra

Get full access to this article

View all access options for this article.

References

See, for example Painter

and Coleman

M. M.

, FTS/IR notes No. 31, (Digilab) (1980) and

Friedel

R. A.

and Carlson

G. L.

, Fuel, 51, 194 (1972).

Rockley

M. G.

, Chem. Phys. Lett. 68, 455 (1979).

This conclusion is based primarily on a comparison with spectra presented in Ref. 1a.