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X-RAY SURFACE DIFFRACTION OF METAL DEPOSITS AT METAL/LIQUID INTERFACES PART I: COPPER DEPOSIT ONAu(100)

Author

Listed:
  • M. CAPPADONIA

    (Institut für Energieverfahrenstechnik, Forschungszentrum Jülich GmbH, Postfach 1913, D-52452 Jülich, Germany)

  • K. M. ROBINSON

    (Institut für Energieverfahrenstechnik, Forschungszentrum Jülich GmbH, Postfach 1913, D-52452 Jülich, Germany;)

  • J. SCHMIDBERGER

    (Institut für Energieverfahrenstechnik, Forschungszentrum Jülich GmbH, Postfach 1913, D-52452 Jülich, Germany)

  • U. STIMMING

    (Institut für Energieverfahrenstechnik, Forschungszentrum Jülich GmbH, Postfach 1913, D-52452 Jülich, Germany)

Abstract

In this work theCudeposition onAu(100)in aqueous perchloric acid has been investigated byin situX-ray surface diffraction (XRSD). The Cu deposition reaction on gold single crystals exhibits an underpotential deposition (UPD) whereby a fraction of a monolayer is formed. The XRSD measurements show that theCuUPD layer has a primitive (1×1) structure and that the adsorbed Cu species sit in fourfold hollow sites with a vertical distance between the Cu adlayer and the gold surface of 1.4 Å. The results are discussed in consideration of STM,1EXAFS2and XSW3experiments.

Suggested Citation

  • M. Cappadonia & K. M. Robinson & J. Schmidberger & U. Stimming, 1997. "X-RAY SURFACE DIFFRACTION OF METAL DEPOSITS AT METAL/LIQUID INTERFACES PART I: COPPER DEPOSIT ONAu(100)," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 4(06), pages 1173-1178.
    • Handle: RePEc:wsi:srlxxx:v:04:y:1997:i:06:n:s0218625x97001498
    DOI: 10.1142/S0218625X97001498
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