Modeling the ion transfer and polarization of ion exchange membranes in bioelectrochemical systems

被引：70

作者：

Harnisch, Falk ^{[1
]}

Warmbier, Robert ^{[2
]}

Schneider, Ralf ^{[2
]}

Schroeder, Uwe ^{[1
]}

机构：

[1] Ernst Moritz Arndt Univ Greifswald, Inst Biochem, Greifswald, Germany

[2] Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany

来源：

BIOELECTROCHEMISTRY | 2009年 / 75卷 / 02期

关键词：

Biological fuel cells; Microbial fuel cells; Modeling; Bioelectrolyzer; Ion exchange membrane; Nafion; MICROBIAL FUEL-CELL; POWER-GENERATION; PERFORMANCE; CATION; ANION; TRANSPORT; NAFION;

D O I：

10.1016/j.bioelechem.2009.03.001

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

An explicit numerical model for the charge balancing ion transfer across monopolar ion exchange membranes under conditions of bioelectrochemical systems is presented. Diffusion and migration equations have been solved according to the Nernst-Planck Equation and the resulting ion concentrations, pH values and the resistance values of the membrane for different conditions were computed. The modeling results underline the principle limitations of the application of ion exchange membranes in biological fuel cells and electrolyzers. caused by the inherent occurrence of a pH-gradient between anode and cathode compartment, and an increased ohmic membrane resistance at decreasing electrolyte concentrations. Finally, the physical and numerical limitations of the model are discussed. (C) 2009 Elsevier B.V. All rights reserved.

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收藏

页码：136 / 141

页数：6

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