Experimental estimation of equilibrium and transport properties of sulfonated cation-exchange membranes with different morphologies

Barragán, V.M.; Villaluenga, J.P.G.; Godino, M.P.; Izquierdo-Gil, M.A.; Ruı́z-Bauzá, C.; Seoane, B.

doi:10.1016/j.jcis.2009.02.015

Cited by 16 publications

(9 citation statements)

References 24 publications

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“…HDX 100 has higher electrical resistance than the Nafion 117 membrane for all the electrolytes considered. This general trend is usually reported in the literature [12,34], and the more tortuous counter-ion pathway of heterogeneous membranes has been pointed out as the reason for this difference [32,35].…”

Section: Electrochemical Characterization Of the Cation-exchange Membsupporting

confidence: 70%

Ion transport through homogeneous and heterogeneous ion-exchange membranes in single salt and multicomponent electrolyte solutions

Martí-Calatayud

Buzzi

García-Gabaldón

et al. 2014

Journal of Membrane Science

113

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Section: Electrochemical Characterization Of the Cation-exchange Membsupporting

confidence: 70%

Ion transport through homogeneous and heterogeneous ion-exchange membranes in single salt and multicomponent electrolyte solutions

Martí-Calatayud

Buzzi

García-Gabaldón

et al. 2014

Journal of Membrane Science

113

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“…was in agreement with published data, which ranges from 6 to 20 wt.% (16% is shown in V.M. Barragan et al [ 15 ], and 6–20% water uptake is found in Nandan et al [ 16 ]). The water uptake value for MK40 was 48 wt.%, which is in accordance with the results of other authors.…”

Section: Resultssupporting

confidence: 93%

“…These observations seem to indicate a different behavior for homogeneous, reinforced homogeneous and heterogeneous membranes, showing that differences in membrane microstructure seem to be relevant. can see from Figure 1 that the water concentration follows the sequence MK40 > NF117 > NF324 [15,19].…”

Section: Salt Concentrationmentioning

confidence: 85%

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The Correlation between the Water Content and Electrolyte Permeability of Cation-Exchange Membranes

Izquierdo-Gil

Villaluenga

Muñoz

et al. 2020

IJMS

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The salt permeability through three commercial cation-exchange membranes with different morphologies is investigated in aqueous NaCl solutions. Ion-exchange membranes (IEMs) find application in different processes such as electrodialysis, reverse osmosis, diffusion dialysis, membrane electrolysis, membrane fuel cells and ion exchange bioreactors. The aim of this paper is the experimental determination of the electrolyte permeability in the following membranes: MK-40 membrane, Nafion N324 membrane and Nafion 117 membrane. The latter is selected as being a reference membrane. The effect of an increase in the NaCl concentration in the solutions on membranes transport properties is analyzed. With regard to membranes sorption, a decrease in the water content was observed when the external electrolyte concentration is increased. Concerning permeation through the membranes, the salt permeability increased with concentration for the Nafion 117 membrane and remained nearly constant for the other two membranes. A close relation between the degree of liquid sorption by the membranes and the electrolyte permeability was observed.

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“…It is necessary to consider the process performance, which depends on the heterogeneity of ionexchange membranes in order to assess the technical viability of the ED process [19][20][21]. In a previous study, the degree of the heterogeneity of ion-exchange membranes was estimated using a heterogeneous model based on the electrochemical properties of commercial anion-exchange membranes employing three monovalent organic acids and an inorganic electrolyte (NaCl) [18].…”

Section: Introductionmentioning

confidence: 99%

Influence of the ratio of resin to polymeric binder on the heterogeneity of cation-exchange membranes

Han

Lee

Moon

2016

Desalination and Water Treatment

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In this study, heterogeneous cation-exchange membranes were prepared by a casting method using mixtures of cation exchange resin and polymeric binder for the application of desalination and water treatment. The influence of the ratio of cation-exchange resin to polymeric binder on the electrochemical properties, such as the characteristic values in the current-voltage relationship, electrical conductivity, and chronopotentiometric values, was investigated and the preparation method was optimized based on the characterized properties of the heterogeneous cation-exchange membranes. The heterogeneity, determined by their ion-exchange resin content, was estimated based on the characterized electrochemical properties, which is related to the inter-gel phase fraction and the conducting phase. It was observed that the heterogeneity of the prepared cation-exchange membranes increased with transition time and limiting current density. In electrodialytic experiments, the heterogeneous cation-exchange membranes showed reasonably good desalination performance compared to commercial heterogeneous membranes, which is related to the heterogeneity as well as the membrane properties.

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Experimental estimation of equilibrium and transport properties of sulfonated cation-exchange membranes with different morphologies

Cited by 16 publications

References 24 publications

Ion transport through homogeneous and heterogeneous ion-exchange membranes in single salt and multicomponent electrolyte solutions

Ion transport through homogeneous and heterogeneous ion-exchange membranes in single salt and multicomponent electrolyte solutions

The Correlation between the Water Content and Electrolyte Permeability of Cation-Exchange Membranes

Influence of the ratio of resin to polymeric binder on the heterogeneity of cation-exchange membranes

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