Effect of a convective term of the Nernst-Plank equation on the ions transfer characteristics in the synthetic membrane charged capillary
UDC
541.135.5Abstract
Within the framework of the Nernst-Plank model, a one-dimensional boundary value problem of stationary ion transfer through the charged media is set and solved with the account of a normal convective component. The problem is applied to a thin pore with charged walls pairing two solutions of different concentrations. Numerical and analytical methods of solution of a boundary value problem are given. The dependences of electrical strength in a pore and effective transfer numbers from the value of a convective component are investigated. It is shown that the Goldman's approximation can be applied to nano-size systems with some exceptions.
Keywords:
nano-, ion transfer, Goldman's approximation, transfer numberFunding information
Работа выполнена при поддержке РФФИ и Администрации Краснодарского края (06-03-96676).
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Copyright (c) 2009 Сулейманов С.С., Куриленко А.К., Лебедев К.А.
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