Tuning the Reactivity of Ultrathin Oxides: NO Adsorption on Monolayer FeO(111)

Lindsay R. Merte; Christopher J. Heard; Feng Zhang; Juhee Choi; Mikhail Shipilin; Johan Gustafson; Jason F. Weaver; Henrik Grönbeck; Edvin Lundgren

doi:10.1002/anie.201601647

Tuning the Reactivity of Ultrathin Oxides: NO Adsorption on Monolayer FeO(111)

Lindsay R. Merte, Christopher J. Heard, Feng Zhang, Juhee Choi, Mikhail Shipilin, Johan Gustafson, Jason F. Weaver, Henrik Grönbeck, Edvin Lundgren

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	9267-9271
Number of pages	5
Journal	Angewandte Chemie (International edition)
Volume	55
Issue number	32
DOIs	https://doi.org/10.1002/anie.201601647
Publication status	Published - 2016 Aug 1

Subject classification (UKÄ)

Materials Engineering
Condensed Matter Physics

Free keywords

heterogeneous catalysis
nitric oxide
oxide films
surface chemistry

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10.1002/anie.201601647

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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.",

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T2 - NO Adsorption on Monolayer FeO(111)

AU - Merte, Lindsay R.

AU - Heard, Christopher J.

AU - Zhang, Feng

AU - Choi, Juhee

AU - Shipilin, Mikhail

AU - Gustafson, Johan

AU - Weaver, Jason F.

AU - Grönbeck, Henrik

AU - Lundgren, Edvin

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AB - 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.

KW - heterogeneous catalysis

KW - nitric oxide

KW - oxide films

KW - surface chemistry

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Tuning the Reactivity of Ultrathin Oxides: NO Adsorption on Monolayer FeO(111)

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