Ex Situ X-ray Photoelectron Spectroscopy Study of the Interface between a Ag(111) Electrode and an Alkaline Electrolyte. 1. Influence of the Electrode Potential on the Adsorption of Oxygen Species Full article
Journal |
Langmuir
ISSN: 0743-7463 , E-ISSN: 1520-5827 |
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Output data | Year: 1999, Volume: 15, Number: 19, Pages: 6546-6551 Pages count : 6 DOI: 10.1021/la9817617 | ||||
Tags | Adsorption; Anodic polarization; Caustic soda; Electrolytes; Fluorine compounds; Interfaces (materials); Oxidation; Oxygen; Silver; Single crystals; Thermodynamic stability; X ray photoelectron spectroscopy | ||||
Authors |
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Affiliations |
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Funding (2)
1 | Alfred Toepfer Stiftung F.V.S. | |
2 | Max Planck Society |
Abstract:
A Ag(111) single-crystal electrode emersed from the NaF + NaOH electrolyte (pH 11) under the anodic polarization has been studied ex situ by means of X-ray photoelectron spectroscopy. The oxidation of the electrode starts at −0.6 V vs Hg/HgO (ca. 1 V negative to the reversible potential of Ag2O phase formation) and manifests itself by the appearance of different surface and bulk oxygen-containing species. These are surface OH groups (OHads), surface oxide-like species (Oads δ- ), and bulk OH groups (OHbulk). The OHbulk exhibit high thermal stability in a vacuum but can be efficiently removed from the electrode via cathodic polarization.
Cite:
Savinova E.R.
, Zemlyanov D.
, Scheybal A.
, Schedel-Niedrig T.
, Doblhofer K.
, Schlögl R.
Ex Situ X-ray Photoelectron Spectroscopy Study of the Interface between a Ag(111) Electrode and an Alkaline Electrolyte. 1. Influence of the Electrode Potential on the Adsorption of Oxygen Species
Langmuir. 1999. V.15. N19. P.6546-6551. DOI: 10.1021/la9817617 WOS Scopus РИНЦ
Ex Situ X-ray Photoelectron Spectroscopy Study of the Interface between a Ag(111) Electrode and an Alkaline Electrolyte. 1. Influence of the Electrode Potential on the Adsorption of Oxygen Species
Langmuir. 1999. V.15. N19. P.6546-6551. DOI: 10.1021/la9817617 WOS Scopus РИНЦ
Dates:
Submitted: | Dec 30, 1998 |
Accepted: | Apr 7, 1999 |
Published online: | Jul 23, 1999 |
Published print: | Sep 1, 1999 |
Identifiers:
Web of science | WOS:000082618800058 |
Scopus | 2-s2.0-0032655711 |
Elibrary | 13322315 |
Chemical Abstracts | 1999:455176 |
Chemical Abstracts (print) | 131:176293 |
OpenAlex | W2089768699 |