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Silver surfaces in perchloric acid: Ag(110) – perchlorate

  • M. NowickiEmail author
  • K. Wandelt
Chapter
Part of the Condensed Matter book series (volume 45B)

Abstract

In this chapter the experimental results on adsorption of perchlorate ion on Ag(110) surface is described.

Co-adsorption experiments of ClO4 and water in UHV were carried out with high-resolution electron energy loss spectroscopy (HREELS), LEED, TDS, and work function measurements [3] in order to simulate the Ag(110)-electrolyte interface. ClO4 adsorbed on the bare Ag(110) surface yields HREELS losses at 640, 915, 1020, and 1220 cm−1 characteristic of tridentate adsorption (through three oxygen atoms). Co-adsorption of H2O at 170 K and low ClO4coverages yields a lift-off of the adsorbed ClO4 species and a hydration of the ions as suggested by HREELS losses at 610, 880, and 1090 cm−1, resembling the vibrational spectrum of fully (tetrahedrally) hydrated ClO4 in solution. Co-adsorption of H2O at high ClO4coverages does not lead to lift-off and hydration, i.e., the hydration energy does not exceed the ClO4 adsorption energy [1, 2].

Symbols and abbreviations

Short form

Full form

LEED

low-energy electron diffraction

HREELs

high-resolution electron energy loss spectroscopy

UHV

ultrahigh vacuum

TDS

thermal desorption spectroscopy

References

  1. 1.
    Krasnopoler, A., Stuve, E.M.: J. Vac. Sci. Technol. A. 13, 1681 (1995)ADSCrossRefGoogle Scholar
  2. 2.
    Stuve, E.M., Krasnopoler, A., Sauer, D.E.: Surf. Sci. 335, 177 (1995)ADSCrossRefGoogle Scholar
  3. 3.
    Pirug, G., Bonzel, H.P.: Surf. Sci. 405, 87 (1998)ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany 2018

Authors and Affiliations

  1. 1.Institute of Experimental PhysicsUniversity of WroclawWroclawPoland
  2. 2.Institute of Physical and Theoretical ChemistryUniversity of BonnBonnGermany

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