TY - GEN
T1 - Signature of aromatic carbons in the terahertz spectroscopy of bio-chars
AU - Lepodise, L. M.
AU - Horvat, J.
AU - Lewis, R. A.
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84893428519&partnerID=8YFLogxK
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U2 - 10.1109/IRMMW-THz.2013.6665653
DO - 10.1109/IRMMW-THz.2013.6665653
M3 - Conference contribution
AN - SCOPUS:84893428519
SN - 9781467347174
T3 - International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
BT - 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013
T2 - 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013
Y2 - 1 September 2013 through 6 September 2013
ER -