Parameter determination of a thermal desorption model |
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| Authors: | S. Zhou G. Schulz-Ekloff D. Popovic |
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| Affiliation: | 1. Institut für Angewandte und Physikalische Chemie, Universit?t Bremen, 28334, Bremen, Germany
2. Institut für Automatisierungstechnik, Universit?t Bremen, 28334, Bremen, Germany
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| Abstract: | A new method for the analysis of thermal desorption spectra is presented, based on the experimental peak maximum functions for temperatureT m(β) and pressureP m(β) and a rigorous mathematical treatment. The resonant heating rate βr is determined, satisfyingT m(βr)=T r, whereT r is the resonant temperature defined byA exp(−E d/(RT r))=1. Desorption energyE d and frequency factorA can be determined simultaneously with relatively high robustness towards statistical experimental errors as demonstrated by computer-simulated thermal desorption spectra. |
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| Keywords: | kinetics thermal desorption thermal desorption spectroscopy |
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