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Exchange across fractal and porous interfaces: Experimental determination of a frequency dependent scale-length for a blocking electrode

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  • Sapoval, B.
  • Chassaing, E.

Abstract

Impedance measurements on highly ramified, “fractal”, blocking electrodes show that the length Λ(ω) = (ϱγω)−1, where ϱ is the electrolyte resistivity and γ the specific capacitance of the interface, is a scaling-length. It determines the range of Constant Phase Angle (CPA) behavior. It is shown that scaling implies a power law dependence of the impedance upon the electrolyte resistivity. It also implies that the impedance of such an electrode is a non-extensive quantity.

Suggested Citation

  • Sapoval, B. & Chassaing, E., 1989. "Exchange across fractal and porous interfaces: Experimental determination of a frequency dependent scale-length for a blocking electrode," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 157(1), pages 610-617.
    • Handle: RePEc:eee:phsmap:v:157:y:1989:i:1:p:610-617
    DOI: 10.1016/0378-4371(89)90370-1
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