Influence of the crystallographic orientation of the surface on the potential of zero charge of silver electrodes

The variation of the potential of zero charge of silver electrodes with the crystallographic orientation of the metal surface was determined for 13 faces of low and high indices. The possible interference of the reaction of electrolytic hydrogen evolution (thermodynamically possible in the range of...

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Bibliographic Details
Published in:Surface science 1988-07, Vol.201 (3), p.L498-L506
Main Authors: Hamelin, A., Stoicoviciu, L., Doubova, L., Trasatti, S.
Format: Article
Language:English
Subjects:
Chemistry
Electrochemistry
Exact sciences and technology
General and physical chemistry
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Summary:The variation of the potential of zero charge of silver electrodes with the crystallographic orientation of the metal surface was determined for 13 faces of low and high indices. The possible interference of the reaction of electrolytic hydrogen evolution (thermodynamically possible in the range of potential where zero charge potentials are measured) with the precise determination of the values of the zero charge potential and its influence on the shape of the capacity potential curves are discussed. The variation of the potential of zero charge with the crystallographic orientation is found to parallel that of the surface energy.
ISSN:0039-6028
1879-2758
DOI:10.1016/0039-6028(88)90488-8