Detail publikačního výsledku
Correlation of humic substances chemical properties and their thermo-oxidative degradation kinetics. Part 1. Arrhenius equation as the temperature function
KUČERÍK, J.; KISLINGER, J.; MAJZLÍK, P.; PEKAŘ, M.
Original Title
Correlation of humic substances chemical properties and their thermo-oxidative degradation kinetics. Part 1. Arrhenius equation as the temperature function
English Title
Correlation of humic substances chemical properties and their thermo-oxidative degradation kinetics. Part 1. Arrhenius equation as the temperature function
Type
WoS Article
Original Abstract
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.
English abstract
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.
Keywords
Humic substances; Isoconversional methods; Single step approximation; Correlation analysis; Thermal analysis.
Key words in English
Humic substances; Isoconversional methods; Single step approximation; Correlation analysis; Thermal analysis.
Authors
KUČERÍK, J.; KISLINGER, J.; MAJZLÍK, P.; PEKAŘ, M.
RIV year
2010
Released
02.10.2009
Publisher
Springer
Location
Nizozemí
ISBN
1388-6150
Periodical
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume
98
Number
1
State
Hungary
Pages from
207
Pages to
214
Pages count
8
Full text in the Digital Library
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"
}