RIS ID

83591

Publication Details

Lepodise, L. M., Horvat, J. & Lewis, R. A. (2013). Signature of aromatic carbons in the terahertz spectroscopy of bio-chars. 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (pp. 1-2). Germany: The Institute of Electrical and Electronics Engineers Inc.

Abstract

The potential of terahertz spectroscopy in distinguishing aromatic carbon compounds in bio-chars is The potential of terahertz spectroscopy in distinguishing aromatic carbon compounds in bio-chars is demonstrated. Several types of biochar samples were measured and compared with the THz spectra of pure aromatic compounds. Infrared spectra were modeled with B3LYP and mP2PLYP methods. Modeling could not identify accurately each of the absorption lines. However modeling shows that one of the lines close to 500 cm-1 is due to vibrations of carbon rings, which can be used for identification of aromatic carbons in biochars. and compared with the THz spectra of pure aromatic compounds. Infrared spectra were modeled with B3LYP and mP2PLYP methods. Modeling could not identify accurately each of the absorption lines. However modeling shows that one of the lines close to 500 cm-1 is due to vibrations of carbon rings, which can be used for identification of aromatic carbons in biochars.

Grant Number

ARC/LX0776043, ARC/DP0665292

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Link to publisher version (DOI)

http://dx.doi.org/10.1109/IRMMW-THz.2013.6665653