Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013 |
| DOIs | |
| Publication status | Published - Dec 1 2013 |
| Event | 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013 - Mainz, Germany Duration: Sep 1 2013 → Sep 6 2013 |
Other
| Other | 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013 |
|---|---|
| Country | Germany |
| City | Mainz |
| Period | 9/1/13 → 9/6/13 |
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All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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Signature of aromatic carbons in the terahertz spectroscopy of bio-chars. / Lepodise, L. M.; Horvat, J.; Lewis, R. A.
2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013. 2013. 6665653.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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 - 2013/12/1
Y1 - 2013/12/1
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
UR - http://www.scopus.com/inward/citedby.url?scp=84893428519&partnerID=8YFLogxK
U2 - 10.1109/IRMMW-THz.2013.6665653
DO - 10.1109/IRMMW-THz.2013.6665653
M3 - Conference contribution
AN - SCOPUS:84893428519
SN - 9781467347174
BT - 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013
ER -