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Surface-structure determination using anomalous x-ray scattering: Underpotential deposition of copper on Pt(111)

Journal Article · · Physical Review, B: Condensed Matter
; ; ;  [1]
  1. Materials Sciences Division, Lawrence Berkeley Laboratory, One Cyclotron Road, Berkeley, California 94720 (United States)
Using anomalous x-ray-diffraction methods we have investigated the underpotential deposition of Cu on Pt(111) in the presence of Cl and Br. The initial adsorption of Cu results in an ordered structure with an incommensurate hexagonal unit cell. Changes in the in-plane scattering intensities at x-ray energies close to the Cu {ital K} edge indicate that the absorbed layer must include both Cu and the halide. The data are described by a bilayer structure very similar to the (111) planes of CuCl.
Research Organization:
Lawrence Berkeley National Laboratory
DOE Contract Number:
AC03-76SF00098
OSTI ID:
44602
Journal Information:
Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 15 Vol. 51; ISSN 0163-1829; ISSN PRBMDO
Country of Publication:
United States
Language:
English

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