title: Tuning the Reactivity of Ultrathin Oxides: NO Adsorption on Monolayer FeO(111).
abstract: Ultrathin metal oxides exhibit unique chemical properties and show promise for applications in heterogeneous catalysis. Monolayer FeO films supported on metal surfaces show large differences in reactivity depending on the metal substrate, potentially enabling tuning of the catalytic properties of these materials. Nitric oxide (NO) adsorption is facile on silver-supported FeO, whereas a similar film grown on platinum is inert to NO under similar conditions. Ab initio calculations link this substrate-dependent behavior to steric hindrance caused by substrate-induced rumpling of the FeO surface, which is stronger for the platinum-supported film. Calculations show that the size of the activation barrier to adsorption caused by the rumpling is dictated by the strength of the metal-oxide interaction, offering a straightforward method for tailoring the adsorption properties of ultrathin films.
authors.affiliation: Division of Synchrotron Radiation Research, Lund University, 22100, Lund, Sweden. lindsay.merte@sljus.lu.se.
authors.forename: Lindsay R
authors.identifier: 0000-0002-3213-4199
authors.initials: LR
authors.lastname: Merte
authors.affiliation: Department of Physics and Competence Centre for Catalysis, Chalmers University of Technology, 41296, Göteborg, Sweden.
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Heard
authors.affiliation: Department of Chemical Engineering, University of Florida, Gainesville, FL, 32611, USA.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhang
authors.affiliation: Department of Chemical Engineering, University of Florida, Gainesville, FL, 32611, USA.
authors.forename: Juhee
authors.initials: J
authors.lastname: Choi
authors.affiliation: Division of Synchrotron Radiation Research, Lund University, 22100, Lund, Sweden.
authors.forename: Mikhail
authors.initials: M
authors.lastname: Shipilin
authors.affiliation: Division of Synchrotron Radiation Research, Lund University, 22100, Lund, Sweden.
authors.forename: Johan
authors.initials: J
authors.lastname: Gustafson
authors.affiliation: Department of Chemical Engineering, University of Florida, Gainesville, FL, 32611, USA.
authors.forename: Jason F
authors.initials: JF
authors.lastname: Weaver
authors.affiliation: Department of Physics and Competence Centre for Catalysis, Chalmers University of Technology, 41296, Göteborg, Sweden.
authors.forename: Henrik
authors.initials: H
authors.lastname: Grönbeck
authors.affiliation: Division of Synchrotron Radiation Research, Lund University, 22100, Lund, Sweden.
authors.forename: Edvin
authors.identifier: 0000-0002-3692-6142
authors.initials: E
authors.lastname: Lundgren
keywords: heterogeneous catalysis; nitric oxide; oxide films; surface chemistry