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Following adsorption kinetics at electrolyte/metal interfaces through crystal truncation scattering: sulfur on Au(111).

Physical review letters, ISSN: 0031-9007, Vol: 90, Issue: 7, Page: 075506
2003
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  • Citations
    34
    • Citation Indexes
      34
      • CrossRef
        34
  • Captures
    34

Article Description

Combining electrochemical methods, in situ scanning tunneling microscopy, and surface x-ray diffraction allowed study of the structure and kinetics of S/Au(111) electrodes in aqueous electrolytes under potential control. Integrated intensities of a particular crystal truncation rod at anti-Bragg conditions were used to trace the sulfur adsorption and desorption as a function of electrode potential in real time. The S desorption is a first order process and the adsorption follows a Langmuir isotherm. A weakly bound S layer is found on the surface before charge transfer, and then specific adsorption occurs.

Bibliographic Details

Vericat, C.; Vela, M. E.; Andreasen, G. A.; Salvarezza, R. C.; Borgatti, F.; Felici, R.; Lee, T.-L.; Renner, F.; Zegenhagen, J.; Martín-Gago, J. A.

American Physical Society (APS)

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