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On the Surface Chemistry of Iron Oxides in Reactive Gas Atmospheres

Authors

  • Emiel de Smit,

    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Sorbonnelaan 16, 3584 CA Utrecht (The Netherlands), Fax: (+31) 30-251-1027
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  • Matti M. van Schooneveld,

    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Sorbonnelaan 16, 3584 CA Utrecht (The Netherlands), Fax: (+31) 30-251-1027
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  • Dr. Fabrizio Cinquini,

    1. Université de Lyon, Institut de Chimie de Lyon, Laboratoire de Chimie, École Normale Supérieure de Lyon and CNRS, 46 Allée d'Italie, 69364 Lyon Cedex 07 (France)
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  • Dr. Hendrik Bluhm,

    1. Chemical Sciences Division, Ernest Orlando Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 (USA)
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  • Prof. Dr. Phillippe Sautet,

    1. Université de Lyon, Institut de Chimie de Lyon, Laboratoire de Chimie, École Normale Supérieure de Lyon and CNRS, 46 Allée d'Italie, 69364 Lyon Cedex 07 (France)
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  • Prof. Dr. Frank M. F. de Groot,

    Corresponding author
    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Sorbonnelaan 16, 3584 CA Utrecht (The Netherlands), Fax: (+31) 30-251-1027
    • Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Sorbonnelaan 16, 3584 CA Utrecht (The Netherlands), Fax: (+31) 30-251-1027
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  • Prof. Dr. Bert M. Weckhuysen

    Corresponding author
    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Sorbonnelaan 16, 3584 CA Utrecht (The Netherlands), Fax: (+31) 30-251-1027
    • Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Sorbonnelaan 16, 3584 CA Utrecht (The Netherlands), Fax: (+31) 30-251-1027
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  • Financial support is acknowledged from Shell Global Solutions (B.M.W.), the Dutch National Science Foundation (CW-NWO/VICI program) (F.M.F.d.G. and B.M.W.), and the Netherlands Research School Combination on Catalysis (NRSC-C) (B.M.W.). This work was performed at the Advanced Light Source (ALS) at the Lawrence Berkeley National Laboratory in Berkeley, USA. The ALS is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under Contract No. DE-AC02-05CH11231. P. Miedema and Dr. I. González Jiménez (Utrecht University) are acknowledged for their help in XPS data acquisition.

Abstract

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How details come to surface: The surface chemistry of small and large iron oxide crystallites was investigated in CO and H2 by in situ XPS. Small particles reacted more dynamically to the changing experimental conditions than larger ones. Ab initio atomistic thermodynamics helped shed light on the enigmatic iron/carbon chemistry.

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