Detail publikace

Thermal Desorption Spectroscopy of Organic and Inorganic Solid State Films

SALYK, O., KUŘITKA, I., SCHAUER, F.

Originální název

Thermal Desorption Spectroscopy of Organic and Inorganic Solid State Films

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Vacuum thermal desorption spectroscopy (TDS) method based on the mass spectroscopy of gases evolved from solids under annealing was developed. This spectroscopic method can be utilized for the determination of absolute concentrations of evolved gaseous species and their respective bonding energies. It is also possible to get structural information on materials investigated. Under conditions far of equilibrium when products are permanently removed, evolved concentrations in a closed chamber correspond to the measured partial pressures of evolved species, depending only on reaction rates. The apparatus for mass spectroscopy of thermo-desorbed gases from solid- state substances consists of vacuum chamber, equipped with heated sample holder connected to the mass spectrometer. A computer controls the programmed temperature changes of the solid-state samples. The absolute calibration of the apparatus is possible by comparing the response of evolved gases and that to injected calibrated dose of the respective gas. The model was checked by a model material -calcite- using thermal decomposition with the temperature ramp of constant rise rate 20°C min-1. The measured CO2 evolution curve was compared with a model acquiring good agreement.

Klíčová slova v angličtině

desorption, mass spectroscopy, activation energy

Autoři

SALYK, O., KUŘITKA, I., SCHAUER, F.

Rok RIV

2002

Vydáno

30. 6. 2002

ISSN

0009-2770

Periodikum

Chemické listy

Ročník

96

Číslo

6

Stát

Česká republika

Strany od

531

Strany do

531

Strany počet

1

BibTex

@article{BUT40862,
  author="Ota {Salyk} and Ivo {Kuřitka} and František {Schauer}",
  title="Thermal Desorption Spectroscopy of Organic and Inorganic Solid State Films",
  journal="Chemické listy",
  year="2002",
  volume="96",
  number="6",
  pages="1",
  issn="0009-2770"
}