Hydroxide Adsorption on Ag(110) Electrodes: An in Situ Second Harmonic Generation and ex Situ Electron Diffraction Study | Sciact - CRIS-system of Boreskov Institute of Catalysis

Hydroxide Adsorption on Ag(110) Electrodes: An in Situ Second Harmonic Generation and ex Situ Electron Diffraction Study Full article

Journal

The Journal of Physical Chemistry B
ISSN: 1520-6106 , E-ISSN: 1520-5207

Output data

Year: 2004, Volume: 108, Number: 48, Pages: 18640-18649 Pages count : 10 DOI: 10.1021/jp0481198

Tags

Adsorption; Cyclic voltammetry; Electrochemical electrodes; Electrochemistry; Electrolytes; High energy electron diffraction; Interfaces (materials); Low energy electron diffraction; Second harmonic generation; Silver; Ultrahigh vacuum

Authors

Horswell Sarah L. ¹ , Pinheiro Alexei L.N. ¹ , Savinova Elena R. ^2,3 , Pettinger Bruno ¹ , Zei Mau-Scheng ⁴ , Ertl Gerhard ¹

Affiliations

1	Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
2	Technische Universitaet Muenchen, Physik-Department E19, James-Franck Str. 1, D-85748 Garching, Germany
3	Boreskov Institute of Catalysis of the Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva, 5, Novosibirsk 630090, Russian Federation
4	Department of Physics, National Central University, Jungli, Taiwan 32054

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 × 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 × 2) pattern gradually replaces the c(2 × 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 × 2) pattern to a (1 × 1) pattern with strong background, indicating a disordered adlayer. However, RHEED results show that some patches of c(2 × 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.

Horswell S.L. , Pinheiro A.L.N. , Savinova E.R. , Pettinger B. , Zei M-S. , Ertl G.
Hydroxide Adsorption on Ag(110) Electrodes: An in Situ Second Harmonic Generation and ex Situ Electron Diffraction Study
The Journal of Physical Chemistry B. 2004. V.108. N48. P.18640-18649. DOI: 10.1021/jp0481198 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Apr 30, 2004
Accepted:	Aug 9, 2004
Published online:	Nov 4, 2004
Published print:	Dec 1, 2004

Web of science:	WOS:000225417200035
Scopus:	2-s2.0-10644264442
Elibrary:	13458687
Chemical Abstracts:	2004:924933
Chemical Abstracts (print):	142:64100
OpenAlex:	W1980682615

DB	Citing
Web of science	9
Scopus	9
Elibrary	9
OpenAlex	9