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Ex Situ X-ray Photoelectron Spectroscopy Study of the Interface between a Ag(111) Electrode and an Alkaline Electrolyte. 2. Structure of the Double Layer Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal Langmuir
ISSN: 0743-7463 , E-ISSN: 1520-5827
Output data Year: 1999, Volume: 15, Number: 19, Pages: 6552-6556 Pages count : 5 DOI: 10.1021/la981762z
Authors Savinova E.R. 1 , Zemlyanov D.Y. 1 , Scheybal A. 2 , Schlögl R. 2 , Doblhofer K. 2
Affiliations
1 Boreskov Institute of Catalysis, Russian Academy of Sciences, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russian Federation
2 Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany

Funding (2)

1 Alfred Toepfer Stiftung F.V.S.
2 Max Planck Society

Abstract: A Ag(111) single-crystal electrode emersed from an alkaline NaF + NaOH electrolyte under various potentials has been studied ex situ by means of X-ray photoelectron spectroscopy. Superequivalent specific adsorption of negatively charged hydroxide and oxide species has been observed at the potentials positive to the point of zero charge (Epzc). The interfacial electroneutrality is provided by the Coulombic attraction of Na+ cations, which are retained in the emersed double layer. Once the emersed electrode is heated in an ultrahigh vacuum above 370 K, the double layer disintegrates via the decomposition of the adsorbed hydroxide and surface oxide species and likely dissolution of sodium in the Ag(111) bulk. A model of the interface between a Ag(111) electrode and an alkaline electrolyte is discussed.
Cite: Savinova E.R. , Zemlyanov D.Y. , Scheybal A. , Schlögl R. , Doblhofer K.
Ex Situ X-ray Photoelectron Spectroscopy Study of the Interface between a Ag(111) Electrode and an Alkaline Electrolyte. 2. Structure of the Double Layer
Langmuir. 1999. V.15. N19. P.6552-6556. DOI: 10.1021/la981762z publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Dec 30, 1998
Accepted: Apr 7, 1999
Published online: Jul 24, 1999
Published print: Sep 1, 1999
Identifiers:
publication_identifier.wos_identifier_type WOS:000082618800059
publication_identifier.scopus_identifier_type 2-s2.0-0032684796
publication_identifier.rinz_identifier_type 13315099
publication_identifier.accession_number_identifier_type 1999:455212
publication_identifier.chemical_accession_number_identifier_type 131:176294
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