CO Oxidation on a single Pd atom supported on magnesia

S. Abbet, U. Heiz, H. Häkkinen, U. Landman

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The oxidation of CO by a model catalyst consisting of single Pd atoms anchored on oxygen surface vacancies of a MgO(100) film was studied. After low-temperature (90 K) coadsorption of O2 and CO, the formation of CO2 was detected by temperature-programmed-reaction (TPR) mass spectrometry in single-heating-cycle experiments. Ab initio density-functional simulations enabled to identify relevant molecular precursors as well as to study the CO2 formation mechanisms.

Original languageEnglish
Pages (from-to)5950-5953
Number of pages4
JournalPhysical Review Letters
Issue number26 I
StatePublished - 25 Jun 2001
Externally publishedYes


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