Lateral interactions and multi-isotherms : nitrogen recombination from Rh(111)

C.G.M. Hermse, A.P. Bavel, van, B.E. Nieuwenhuys, J.J. Lukkien, R.A. Santen, van, A.P.J. Jansen

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)


Lateral adsorbate-adsorbate interactions result in variation of the desorption rate constants with coverage. This effect can be studied in great detail from the shape of a multi-isotherm. To produce the multi-isotherm, the temperature is increased in a (semi)stepwise fashion to some temperature, followed by maintaining this temperature for a prolonged time. Then, the temperature is stepped to a higher value and held constant at this new temperature. This cycle is continued until all of the adsorbates have desorbed. Using a detailed kinetic Monte Carlo model and an optimization algorithm based on Evolutionary Strategy, we are able to reproduce the shape of the experimentally measured multi-isotherm of nitrogen on Rh(111) and obtain the lateral interactions between the nitrogen atoms.
Original languageEnglish
Pages (from-to)8302-8311
Issue number18
Publication statusPublished - 2005


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