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KUČERÍK, J. KISLINGER, J. MAJZLÍK, P. PEKAŘ, M.
Originální název
Correlation of humic substances chemical properties and their thermo-oxidative degradation kinetics. Part 1. Arrhenius equation as the temperature function
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Application of the Arrhenius equation as the temperature function in modeling of the degradation kinetics of humic substances brought a high positive Pearson correlation coefficient with the carbon content and a reasonable negative correlation with the oxygen content. Ratio C/H indicating the aromaticity degree of humic samples did not show any significant correlation. Relatively high value of correlation coefficients provided also O + N and ratios C/(O + N) and C/O, respectively. In contrast, H, N content and natural and heat generated free radical content and their ratio gave substantially lower correlation coefficients. The latter indicates that free radicals are probably not the main reason of the collapse of the secondary tructure of humic substances leading to their degradation.
Klíčová slova
Humic substances; Isoconversional methods; Single step approximation; Correlation analysis; Thermal analysis.
Autoři
KUČERÍK, J.; KISLINGER, J.; MAJZLÍK, P.; PEKAŘ, M.
Rok RIV
2009
Vydáno
2. 10. 2009
Nakladatel
Springer
Místo
Nizozemí
ISSN
1388-6150
Periodikum
Journal of Thermal Analysis and Calorimetry
Ročník
98
Číslo
1
Stát
Maďarsko
Strany od
207
Strany do
214
Strany počet
8
BibTex
@article{BUT48900, author="Jiří {Kučerík} and Jiří {Kislinger} and Petr {Majzlík} and Miloslav {Pekař}", title="Correlation of humic substances chemical properties and their thermo-oxidative degradation kinetics. Part 1. Arrhenius equation as the temperature function", journal="Journal of Thermal Analysis and Calorimetry", year="2009", volume="98", number="1", pages="207--214", issn="1388-6150" }