On the methanol-water electroosmotic transport in a Nafion membrane

被引：27

作者：

Barragán, VM ^{[1
]}

Ruíz-Bauzá, C ^{[1
]}

Villaluenga, JPG ^{[1
]}

Seoane, B ^{[1
]}

机构：

[1] Univ Complutense Madrid, Fac Fis, Dept Fis Aplicada 1, E-28040 Madrid, Spain

来源：

JOURNAL OF MEMBRANE SCIENCE | 2004年 / 236卷 / 01期

关键词：

electroosmosis; methanol; nation membrane; limiting current; electrolyte solution;

D O I：

10.1016/j.memsci.2003.12.033

中图分类号：

TQ [化学工业];

学科分类号：

0817 [化学工程与技术];

摘要：

Electroosmosis experiments through a Nafion membrane have been per-formed using methanol-water KCl solutions in different experimental situations. The influence on the electroosmotic transport of the percentage of methanol on solvent at different electrolyte concentrations has been studied. The experimental results show that the presence of methanol on the solutions affects strongly to the electroosmotic flow. From the current-voltage curves determined for this membrane system, the limiting currents were obtained at different volume percentages of methanol. The values obtained decrease with increasing the percentage of methanol and a minimum value seems to be reached at certain percentage of alcohol. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：109 / 120

页数：12

共 25 条

[1]

Bagotzky V.S., 1993, FUNDAMENTALS ELECTRO

[2]

Current-voltage curves for a cation-exchange membrane in methanol-water electrolyte solutions [J].

Barragán, VM ;

Bauzá, CR .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2002, 247 (01) :138-148

[3]

BARRAGAN VM, 2002, P 13 ANN M N AM MEMB, P26

[4]

Ionic behavior across charged membranes in methanol-water solutions. I: Membrane potential [J].

Chou, TJ ;

Tanioka, A .

JOURNAL OF MEMBRANE SCIENCE, 1998, 144 (1-2) :275-284

[5]

DE GROOT S. R., 1966, THERMODYNAMICS IRREV

[6]

A review of the state-of-the-art of the methanol crossover in direct methanol fuel cells [J].

Heinzel, A ;

Barragán, VM .

JOURNAL OF POWER SOURCES, 1999, 84 (01) :70-74

[7]

ION-TRANSPORT AND CLUSTERING IN NAFION PERFLUORINATED MEMBRANES [J].

HSU, WY ;

GIERKE, TD .

JOURNAL OF MEMBRANE SCIENCE, 1983, 13 (03) :307-326

[8]

Electroosmotic drag in polymer electrolyte membranes: an electrophoretic NMR study [J].

Ise, M ;

Kreuer, KD ;

Maier, J .

SOLID STATE IONICS, 1999, 125 (1-4) :213-223

[9]

Water transport in the proton-exchange-membrane fuel cell: Measurements of the effective drag coefficient [J].

Janssen, GJM ;

Overvelde, MLJ .

JOURNAL OF POWER SOURCES, 2001, 101 (01) :117-125

[10]

Janz G. J., 1961, REFERENCE ELECTRODES, P179

← 1 2 3 →