Study of the linearity of the voltage-current relationship in ion-exchange membranes using the network simulation method

被引：8
|
作者：
Moya, AA [1 ]
Horno, J [1 ]
机构：
[1] Univ Jaen, Fac Ciencias Expt, Dept Fis, Jaen 23071, Spain
来源：
JOURNAL OF MEMBRANE SCIENCE | 2004年 / 235卷 / 1-2期
关键词：
electrodiffusion processes; Nernst-Planck and Poisson equations; network simulation method; ion-exchange membranes; PSPICE modelling;
D O I：
10.1016/j.memsci.2004.02.002
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The conditions of linearity of the current-voltage relationship in ion-exchange membrane systems have been investigated using the network simulation method. A network model is proposed for the Nernst-Planck and Poisson equations describing the ionic transport through an ion-exchange membrane and the two diffusion boundary layers on both sides of the membrane. With this model and the electric circuit simulation program PSPICE(TM) , a decomposition into Fourier components of the electric current-time response, which follows the application of a sinusoidal-shaped electric potential, is obtained. The results reveal a considerable influence of the membrane fixed charge concentration on the amplitude of the different harmonics. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：123 / 129
页数：7
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