Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 113, Issue 30, Pages 12939-12942Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp904200e
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First-principles electronic structure calculations, fully incorporating the effects of spin polarization and noncollinear magnetic moments, have been used to investigate CO disproportionation on an isolated Fe cluster. After CO dissociation, which occurs on a vertex between the facets, O atoms remain oil the surface while C atoms move into the cluster as the initial step toward carbide formation. The lowest CO dissociation barrier found (0.77 eV) is lower than that oil most of the studied Fe surfaces. Several possible paths for CO2 formation were identified. The lowest reaction barrier was 1.08 eV.
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