Anomalous Dependence of the Reactivity on the Presence of Steps: Dissociation of D2 on Cu(211).
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ABSTRACT:
SUBMITTER: Fuchsel G
PROVIDER: S-EPMC5759030 | biostudies-literature | 2018 Jan
REPOSITORIES: biostudies-literature
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Anomalous Dependence of the Reactivity on the Presence of Steps: Dissociation of D<sub>2</sub> on Cu(211).
Füchsel Gernot G Cao Kun K Er Süleyman S Smeets Egidius W F EWF Kleyn Aart W AW Juurlink Ludo B F LBF Kroes Geert-Jan GJ
The journal of physical chemistry letters 20171222 1
Stepped metal surfaces are usually assumed to exhibit an increased catalytic activity for bond cleavage of small molecules over their flat single-crystal counterparts. We present experimental and theoretical data on the dissociative adsorption of molecular hydrogen on copper that contradicts this notion. We observe hydrogen molecules to be more reactive on the flat Cu(111) than on the stepped Cu(211) surface. We suggest that this exceptional behavior is due to a geometric effect, that is, that b ...[more]
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