Detail publikace

Hydration and water holding properties of cross-linked lignite humic acids

CIHLÁŘ, Z. VOJTOVÁ, L. CONTE, P. NASIR, S. KUČERÍK, J.

Originální název

Hydration and water holding properties of cross-linked lignite humic acids

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

In order to stabilize the structure of lignite humic acids and improve the water holding capacity, we applied formaldehyde cross-linking procedure. By combining the 1H NMR relaxometry and methods of thermal analysis, the kinetics and degree of hydration, water distribution and moisture uptake were investigated. Formaldehyde cross-linking of humic acids influenced mainly their physical properties. The thermo-oxidative stability was decreased due to an increase in pore sizes. Spatial polar groups separation increased moisture uptake at higher relative humidity.

Klíčová slova

lignite humic acids, cross-linking, hydration, DSC, NMR relaxometry, water molecule bridges

Autoři

CIHLÁŘ, Z.; VOJTOVÁ, L.; CONTE, P.; NASIR, S.; KUČERÍK, J.

Rok RIV

2014

Vydáno

1. 10. 2014

Nakladatel

Elsevier

ISSN

0016-7061

Periodikum

GEODERMA

Ročník

230-231

Číslo

1

Stát

Nizozemsko

Strany od

151

Strany do

160

Strany počet

10

URL

https://www.sciencedirect.com/science/article/pii/S001670611400175X

BibTex

@article{BUT107447,
  author="Zdeněk {Cihlář} and Lucy {Vojtová} and Pelegrino {Conte} and Saqib {Nasir} and Jiří {Kučerík}",
  title="Hydration and water holding properties of cross-linked lignite humic acids",
  journal="GEODERMA",
  year="2014",
  volume="230-231",
  number="1",
  pages="151--160",
  doi="10.1016/j.geoderma.2014.04.018",
  issn="0016-7061",
  url="https://www.sciencedirect.com/science/article/pii/S001670611400175X"
}