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2 Polish Journal of Chemistry

2 1999

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Analysis of the High Coverage Complex Desorption Spectra : Application to Hydrogen Desorption from Thin Annealed Gold Film

Stobiński L., Zommer L.

Polish Journal of Chemistry

1999

Vol. 73, nr 8

1373-1378

The analysis of thermal desorption spectra by the Downhill Simplex and the Runge-Kutta methods to solve the Polanyi-Wigner equation has been presented. It is demonstrated for complex thermal desorption spectrum for H adsorbed on a thin gold film at 78 K.

Analysis of simple and single thermal desorption spectra: application to hydrogen (deuterium) desorption from a thin gold film

Zommer L., Stobiński L.

Polish Journal of Chemistry

1999

vol. 73 nr 2

339-346

An effective method of computing kinetic parameters (n,V,Ed) of thermal desorption from the experimental thermal desorption curve has been elaborated. So far the Downhill Simplex Method in Multidimensions for minimization and the Runge-Kutta method for solvation the Polanyi-Wigner equation, for any set of kinetic parameters proposed by the Simplex Method, have been applied. The fitting procedure is demonstrated on examples of low coverage thermal desorption spectra for H (D) adsorbed on a thin gold film surface at 78 K.