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INTERACTION AND REACTION OF CARBON MONOXIDE AND OXYGEN ON Ru(100) AND Ru(100)-Pd

Author

Listed:
  • STEPHEN POULSTON

    (Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK)

  • MINTCHO TIKHOV

    (Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK)

  • RICHARD M. LAMBERT

    (Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK)

Abstract

The behavior of coadsorbed CO and oxygen on Ru(100) is quite different from that observed on the other principal faces of the metal. LEED data show that the two adsorbates coexist in separate domains and that mutual compression effects result in formation of high-density oxygen structures which are not accessible by oxygen chemisorption alone. These domains are catalytically inert under UHV conditions, although TDS and ΔΦ results show that they significantly influence each other. The presence of Pd triggersCO2formation at a threshold metal coverage of 2 ML, full Pd activity being recovered at ~6 ML.

Suggested Citation

  • Stephen Poulston & Mintcho Tikhov & Richard M. Lambert, 1994. "INTERACTION AND REACTION OF CARBON MONOXIDE AND OXYGEN ON Ru(100) AND Ru(100)-Pd," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 1(04), pages 655-660.
    • Handle: RePEc:wsi:srlxxx:v:01:y:1994:i:04:n:s0218625x94000874
    DOI: 10.1142/S0218625X94000874
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