CO Oxidation on a single Pd atom supported on magnesia

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

doi:10.1103/PhysRevLett.86.5950

CO Oxidation on a single Pd atom supported on magnesia

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

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Abstract

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 language	English
Pages (from-to)	5950-5953
Number of pages	4
Journal	Physical Review Letters
Volume	86
Issue number	26 I
DOIs	https://doi.org/10.1103/PhysRevLett.86.5950
State	Published - 25 Jun 2001
Externally published	Yes

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10.1103/PhysRevLett.86.5950

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title = "CO Oxidation on a single Pd atom supported on magnesia",

abstract = "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.",

author = "S. Abbet and U. Heiz and H. H{\"a}kkinen and U. Landman",

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AU - Abbet, S.

AU - Heiz, U.

AU - Häkkinen, H.

AU - Landman, U.

PY - 2001/6/25

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N2 - 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.

AB - 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.

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CO Oxidation on a single Pd atom supported on magnesia

Abstract

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