Detail publikačního výsledku

The kinetics and mechanism of thermal decomposition of SrCO3 polymorphs

PTÁČEK, P.; BARTONÍČKOVÁ, E.; ŠVEC, J.; OPRAVIL, T.; ŠOUKAL, F.; FRAJKOROVÁ, F.

Originální název

The kinetics and mechanism of thermal decomposition of SrCO3 polymorphs

Anglický název

The kinetics and mechanism of thermal decomposition of SrCO3 polymorphs

Druh

Článek WoS

Originální abstrakt

The alpha -> beta transformation between orthorhombic (alpha) and hexagonal (beta) polymorphs of strontium carbonate has significant effect on the behavior of SrCO3 during thermal treatment. The kinetics, mechanism and thermodynamics of activated complex in the process of thermal decomposition were investigated by non-isothermal thermogravimetric analysis (TGA) using mechanism-free (Kissinger equation) as well as kinetic function fitting methods. Both techniques as well as the calculation of theoretical activation energy (third law method) show that the transformation of alpha-SrCO3 to beta-SrCO3 reduces the activation energy and changes the mechanism of the process.

Anglický abstrakt

The alpha -> beta transformation between orthorhombic (alpha) and hexagonal (beta) polymorphs of strontium carbonate has significant effect on the behavior of SrCO3 during thermal treatment. The kinetics, mechanism and thermodynamics of activated complex in the process of thermal decomposition were investigated by non-isothermal thermogravimetric analysis (TGA) using mechanism-free (Kissinger equation) as well as kinetic function fitting methods. Both techniques as well as the calculation of theoretical activation energy (third law method) show that the transformation of alpha-SrCO3 to beta-SrCO3 reduces the activation energy and changes the mechanism of the process.

Klíčová slova

SrCO3; Strontianite; Transformation; Thermal decomposition; Kinetics

Klíčová slova v angličtině

SrCO3; Strontianite; Transformation; Thermal decomposition; Kinetics

Autoři

PTÁČEK, P.; BARTONÍČKOVÁ, E.; ŠVEC, J.; OPRAVIL, T.; ŠOUKAL, F.; FRAJKOROVÁ, F.

Rok RIV

2016

Vydáno

01.01.2015

Nakladatel

ELSEVIER SCI LTD

Místo

THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND

ISSN

0272-8842

Periodikum

Ceramics International

Svazek

41

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

115

Strany do

126

Strany počet

12

URL

https://www.sciencedirect.com/science/article/pii/S0272884214012802

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT113854,
  author="Petr {Ptáček} and Eva {Bartoníčková} and Jiří {Švec} and Tomáš {Opravil} and František {Šoukal} and Františka {Frajkorová}",
  title="The kinetics and mechanism of thermal decomposition of SrCO3 polymorphs",
  journal="Ceramics International",
  year="2015",
  volume="41",
  number="1",
  pages="115--126",
  doi="10.1016/j.ceramint.2014.08.043",
  issn="0272-8842",
  url="https://www.sciencedirect.com/science/article/pii/S0272884214012802"
}