Effect of boundary conditions on the character of ambipolar diffusion in electrolytes

I. Chikina, V. B. Shikin, and A. A. Varlamov
Phys. Rev. E 92, 012310 – Published 15 July 2015

Abstract

We discuss the details of ambipolar relaxation of the electric field in liquid asymmetric electrolytes to its stationary value. It is demonstrated that the account for finite boundary conditions modifies the existing concepts of this diffusion process. In particular, we succeeded to suggest a qualitatively correct explanation of the observed distribution of the electric fields over the bulk of the cuvette and its nonmonotonic behavior in measurements on the finite-size cuvette. We analyze the conditions of such an anomaly at the intermediate stages of the relaxation process.

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  • Received 26 February 2015

DOI:https://doi.org/10.1103/PhysRevE.92.012310

©2015 American Physical Society

Authors & Affiliations

I. Chikina1, V. B. Shikin2, and A. A. Varlamov3

  • 1IRAMIS, LIONS, UMR NIMBE 3299 CEA-CNRS, CEA-Saclay, F-91191 Gif-sur-Yvette Cedex, France
  • 2ISSP, RAS, Chernogolovka, Moscow District 142432, Russia
  • 3CNR-SPIN, Viale del Politecnico 1, I-00133 Rome, Italy

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Vol. 92, Iss. 1 — July 2015

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