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Reactivity and Passivation of Fe Nanoclusters on h-BN/Rh(111).


ABSTRACT: The reactivity of iron nanocluster arrays on h-BN/Rh(111) was studied using in situ high-resolution X-ray photoelectron spectroscopy. The morphology and reactivity of the iron nanoclusters (Fe-NCs) were investigated by CO adsorption. On-top and hollow/edge sites were determined to be the available adsorption sites on the as-prepared Fe-NCs and CO dissociation was observed at 300 K. C- and O-precovered Fe-NCs showed no catalytic activity towards CO dissociation because the hollow/edge sites were blocked by the C and O atoms. Therefore, these adsorption sites were identified to be the most active sites of the Fe-NCs.

SUBMITTER: Waleska NJ 

PROVIDER: S-EPMC9290904 | biostudies-literature |

REPOSITORIES: biostudies-literature

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