Detail publikace

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.

Originální název

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

Číslo

Stát

Maďarsko

Strany od

207

Strany do

214

Strany počet

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"
}