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  In situ Raman spectroscopy studies of the interface between silver(111) electrodes and alkaline NaF electrolytes

Savinova, E. R., Kraft, P., Pettinger, B., & Doblhofer, K. (1997). In situ Raman spectroscopy studies of the interface between silver(111) electrodes and alkaline NaF electrolytes. Journal of Electroanalytical Chemistry, 430(1-2), 47-56. doi:10.1016/S0022-0728(97)00086-7.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-B51A-F Version Permalink: https://hdl.handle.net/21.11116/0000-0008-E2EF-C
Genre: Journal Article

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 Creators:
Savinova, Elena R.1, 2, Author           
Kraft, Peter1, Author           
Pettinger, Bruno1, Author           
Doblhofer, Karl1, Author           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
2Boreskov Institute of Catalysis, Lavrentjeva 5, 630090 Novosibirsk, Russia, ou_persistent22              

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 Abstract: The electrochemical interface between Ag(111) single crystal and NaF + NaOH electrolytes at various pH values has been studied
using cyclic voltammetry and in situ Raman spectroscopy. Submonolayer oxidation starts well below bulk silver oxide formation at
potential about -0.6V vs. HglHgO electrode at pH 11. Two potential-dependent Raman bands v1 at 540 to 560cm-1 and v2 at 803 to
819 cm-1 in basic NaF electrolytes are attributed to Ag-OH stretching and AgO-H bending vibrations of electrochemisorbed hydroxide
species. Strong isotope effect is observed in D20 solutions, v2 being shifted to values of 550 to 570cm-1. Fluoride stabilizes the adsorption of hydroxide species. A multistep scheme is proposed that describes the mechanism of formation of hydroxide/oxide species at the considered silver-electrode surface.

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Language(s): eng - English
 Dates: 1997-01-201996-10-101997-01-211997-06-30
 Publication Status: Issued
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/S0022-0728(97)00086-7
 Degree: -

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Title: Journal of Electroanalytical Chemistry
  Other : J. Electroanal. Chem.
  Other : Journal of Electroanalytical Chemistry and Interfacial Electrochemistry
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: 10 Volume / Issue: 430 (1-2) Sequence Number: - Start / End Page: 47 - 56 Identifier: ISSN: 0022-0728
CoNE: https://pure.mpg.de/cone/journals/resource/954928572675