Numerical simulation of temperature-programmed reaction data: an application in surface chemical kinetics

Graham Ellis, James Sidaway, Martin McCoustra

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The application of numerical simulations of temperature-programmed reaction and desorption (TPRD) spectra as a means of supporting mechanistic studies of surface reactions is demonstrated through two simple examples: the chemistry of ethene hydrogenation and the chemistry of methyl moieties co-adsorbed with hydrogen atoms. Where possible, literature kinetic parameters have been employed in the simulations. Where no parameters exist, preliminary estimates of the kinetic parameters were systematically modified until a visual agreement between the empirical TPRD spectra and the numerical simulations was obtained. In this way, these simulations have permitted a preliminary determination of the activation energies and pre-exponential factors for a number of the reaction steps in the-chemistry of co-adsorbed methyl moieties and hydrogen atoms.
Original languageEnglish
Pages (from-to)2633-2637
Number of pages5
JournalJournal of the Chemical Society, Faraday Transactions
Volume94
Issue number17
DOIs
Publication statusPublished - 1998

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