English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Hydroxide adsorption on Ag(110) electrodes: An in situ second harmonic generation and ex situ electron diffraction study

MPS-Authors
/persons/resource/persons21643

Horswell,  Sarah L.
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21961

Pinheiro,  Alexei L. N.
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22054

Savinova,  Elena R.
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21954

Pettinger,  Bruno
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22283

Zei,  Mau-Scheng
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21498

Ertl,  Gerhard
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Horswell, S. L., Pinheiro, A. L. N., Savinova, E. R., Pettinger, B., Zei, M.-S., & Ertl, G. (2004). Hydroxide adsorption on Ag(110) electrodes: An in situ second harmonic generation and ex situ electron diffraction study. Journal of Physical Chemistry B, 108(48), 18640-18649. doi:10.1021/jp0481198.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0AF3-F
Abstract
The adsorption of hydroxide on the Ag(110) surface has been studied with cyclic voltammetry, in situ second harmonic generation (SHG), and ex situ low energy electron diffraction (LEED) and reflection high energy electron diffraction (RHEED). OH- is found to be adsorbed on the Ag(110) surface at potentials negative of the potential of zero charge, forming small antiphase domains of c(2 x 6) symmetry. Further adsorption leads to longer-range order and the removal of antiphase domain boundaries and is associated with a current peak in the cyclic voltammogram (CV). Concurrently, a change in symmetry patterns is observed in SHG. A c(2 x 2) pattern gradually replaces the c(2 x 6) pattern as the potential, and the OH- coverage, is increased. At the beginning of the second current wave, another symmetry change takes place which is accompanied by a sharp change in the LEED pattern from a c(2 x 2) pattern to a (1 x 1) pattern with strong background, indicating a disordered adlayer. However, RHEED results show that some patches of c(2 x 2) structure remain on the surface. The correlation between SHG and diffraction measurements and comparison of the information obtained from each technique allow us to develop a detailed picture of the structures and electronic effects at the Ag(110) alkaline electrolyte interface.