The effect of mechanical stress on the potential of the Ag/Ag+ electrode

Á Horváth, R. Schiller

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Abstract

The effect of mechanical stress, σ, on electrode potential, E, was studied under zero current conditions. Silver wires in contact with AgNO3 solutions were exposed to tensile stress and the variation of the potential was measured in a two-electrode cell. The change in the steady state, ΔE, was found to be proportional to σ whereas the time dependence, E(t), could be reasonably described by an exponential function. The ΔE vs. σ functions were understood in terms of the electrostatics of the double layer enabling one to evaluate the stress dependence of the potential of zero charge, (∂Eo/∂σ) = 25.6 ± 1 μV MPa-1 this experimental value is supported by a theoretical estimation.

Original languageEnglish
Pages (from-to)2662-2667
Number of pages6
JournalPhysical Chemistry Chemical Physics
Volume3
Issue number13
DOIs
Publication statusPublished - Aug 9 2001

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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