| JANU, Rainer, Verena MRLIK, Doris RIBITSCH, Jakub HOFMAN, Petr SEDLÁČEK, Lucie BIELSKÁ a G. SOJA. Biochar surface functional groups as affected by biomass feedstock, biochar composition and pyrolysis temperature. Carbon Resources Conversion. KeAi Communications Co., 2021, roč. 4, January 2021, s. 36-46. ISSN 2588-9133. Dostupné z: https://dx.doi.org/10.1016/j.crcon.2021.01.003. |
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@article{1841138,
author = {Janu, Rainer and Mrlik, Verena and Ribitsch, Doris and Hofman, Jakub and Sedláček, Petr and Bielská, Lucie and Soja, G.},
article_number = {January 2021},
doi = {http://dx.doi.org/10.1016/j.crcon.2021.01.003},
keywords = {Carbonization; Characterization; DRIFTS; FTIR; Spectroscopy},
language = {eng},
issn = {2588-9133},
journal = {Carbon Resources Conversion},
title = {Biochar surface functional groups as affected by biomass feedstock, biochar composition and pyrolysis temperature},
url = {https://www.sciencedirect.com/science/article/pii/S2588913321000119},
volume = {4},
year = {2021}
}
TY - JOUR
ID - 1841138
AU - Janu, Rainer - Mrlik, Verena - Ribitsch, Doris - Hofman, Jakub - Sedláček, Petr - Bielská, Lucie - Soja, G.
PY - 2021
TI - Biochar surface functional groups as affected by biomass feedstock, biochar composition and pyrolysis temperature
JF - Carbon Resources Conversion
VL - 4
IS - January 2021
SP - 36-46
EP - 36-46
PB - KeAi Communications Co.
SN - 25889133
KW - Carbonization
KW - Characterization
KW - DRIFTS
KW - FTIR
KW - Spectroscopy
UR - https://www.sciencedirect.com/science/article/pii/S2588913321000119
N2 - By testing 92 different biochars, this study had the objective to determine the relations between simple physico-chemical characteristics of biochar (elemental composition, ash fraction, specific surface area, process parameters) and infrared sorption characteristics revealing the presence of specific functional groups. The results of Diffusive Reflection Fourier Transformation Infrared Spectroscopy were statistically analyzed with multiple linear regression techniques and Principal Component Analysis (PCA) with the biochar characterization parameters as model inputs. The dominant parameters affecting the functional group signals were the pyrolysis temperature, the H/C-ratio and specific surface area of the biochar and the ash fraction. Regression models were able to explain 60–90% of data variance for specific peaks in the DRIFTS-spectra. The application of PCA could further reduce the input parameters to three main factors explaining 70.8% of total data variance. Biplots of the first two main factors showed the similarity of infrared spectra of biochars produced at 300 and 450 °C, whereas a pyrolysis temperature of 600 °C lead to a partial and a 750 °C to a nearly complete loss of biochar surface functional groups.
ER -
JANU, Rainer, Verena MRLIK, Doris RIBITSCH, Jakub HOFMAN, Petr SEDLÁČEK, Lucie BIELSKÁ a G. SOJA. Biochar surface functional groups as affected by biomass feedstock, biochar composition and pyrolysis temperature. \textit{Carbon Resources Conversion}. KeAi Communications Co., 2021, roč.~4, January 2021, s.~36-46. ISSN~2588-9133. Dostupné z: https://dx.doi.org/10.1016/j.crcon.2021.01.003.
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