How bulk and surface properties of sulfonated cation-exchange membranes response to their exposure to electric current during electrodialysis of a Ca2+ containing solution

Titorova, Valentina; Moroz, Ilya A.; Mareev, Semyon; Pismenskaya, Natalia; Саббатовский, К. Г.; Wang, Y.; Xu, Tongwen; Nikonenko, Victor

doi:10.1016/j.memsci.2021.120149

Cited by 23 publications

(9 citation statements)

References 69 publications

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“…As a result, the section of negative conductivity on the CVC practically disappears (insert in Figure 9 a). Small vortices developing by the mechanism of “electroosmosis I” begin to rotate in the opposite direction and prevent the development of non-equilibrium electroconvection [ 93 ]. It is known [ 90 ] that carboxylic groups have exhibit highly catalytic activity towards water splitting.…”

Section: Resultsmentioning

confidence: 99%

Comparison of the Electrodialysis Performance in Tartrate Stabilization of a Red Wine Using Aliphatic and Aromatic Commercial and Modified Ion-Exchange Membranes

et al. 2023

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The application of electrodialysis for tartrate stabilization and reagent-free acidity correction of wine and juices is attracting increasing interest. New aliphatic membranes CJMC-3 and CJMA-3 and aromatic membranes CSE and ASE were tested to determine their suitability for use in these electrodialysis processes and to evaluate the fouling of these membranes by wine components for a short (6–8 h) operating time. Using IR spectroscopy, optical indication and measurement of surface contact angles, the chemical composition of the studied membranes, as well as some details about their fouling by wine components, was clarified. The current–voltage charsacteristics, conductivity and water-splitting capacity of the membranes before and after electrodialysis were analyzed. We found that in the case of cation-exchange membranes, complexes of anthocyanins with metal ions penetrate into the bulk (CJMC-3) or are localized on the surface (CSE), depending on the degree of crosslinking of the polymer matrix. Adsorption of wine components by the surface of anion-exchange membranes CJMA-3 and ASE causes an increase in water splitting. Despite fouling under identical conditions of electrodialysis, membrane pair CJMC-3 and CJMA-3 provided 18 ± 1 tartrate recovery with 31 · 10−3 energy consumption, whereas CSE and ASE provided 20 ± 1% tartrate recovery with an energy consumption of 28 · 10−3 Wh, in addition to reducing the conductivity of wine by 20 ± 1%. The casting of aliphatic polyelectrolyte films on the surface of aromatic membranes reduces fouling with a relatively small increase in energy consumption and approximately the same degree of tartrate recovery compared to pristine CSE and ASE.

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Section: Resultsmentioning

confidence: 99%

Comparison of the Electrodialysis Performance in Tartrate Stabilization of a Red Wine Using Aliphatic and Aromatic Commercial and Modified Ion-Exchange Membranes

et al. 2023

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“…Using this simple approach, it is possible to explain the deviation of the IEM behavior from the classical one in solutions of weak electrolytes (such as phosphate or tartrate salts) and explain some features of this behavior compared with that in strong electrolyte solutions: the appearance of a second limiting current [145], increased diffusion permeability [74] or unusual concentration dependence of membrane conductivity [146]. Models based on TMS shed light on the transient characteristics of IEMs [128] and provide an explanation for scaling formation on surfaces in solutions with multivalence ions [147]. It is still an indispensable theoretical tool in the field of RED [148][149][150][151] and fuel cells [17,30,58].…”

Section: Modeling Of Ion and Water Transport In Iemsmentioning

confidence: 95%

Ion and Water Transport in Ion-Exchange Membranes for Power Generation Systems: Guidelines for Modeling

Mareev

Gorobchenko

Ivanov

et al. 2022

IJMS

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Artificial ion-exchange and other charged membranes, such as biomembranes, are self-organizing nanomaterials built from macromolecules. The interactions of fragments of macromolecules results in phase separation and the formation of ion-conducting channels. The properties conditioned by the structure of charged membranes determine their application in separation processes (water treatment, electrolyte concentration, food industry and others), energy (reverse electrodialysis, fuel cells and others), and chlore-alkali production and others. The purpose of this review is to provide guidelines for modeling the transport of ions and water in charged membranes, as well as to describe the latest advances in this field with a focus on power generation systems. We briefly describe the main structural elements of charged membranes which determine their ion and water transport characteristics. The main governing equations and the most commonly used theories and assumptions are presented and analyzed. The known models are classified and then described based on the information about the equations and the assumptions they are based on. Most attention is paid to the models which have the greatest impact and are most frequently used in the literature. Among them, we focus on recent models developed for proton-exchange membranes used in fuel cells and for membranes applied in reverse electrodialysis.

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“…In our model, the thickness of each cation-exchange modification layer was taken equal to 50 nm. The thickness of each anion-exchange modification layer was taken equal to 5 nm, being approximately comparable with the layer of Ca 2+ ions adsorbed on the surface of ion-exchange membranes [46]. Such a layer has a charge of opposite sign with respect to the sub- strate membrane and can potentially increase its specific permselectivity to the transport of singly charged ions.…”

Section: Parameters Of the Substrate Membrane And Modification Layersmentioning

confidence: 99%

“…Since the concentration of fixed ion groups in such layer Q AEL can not be sufficiently precisely estimated, it is assumed in our model as a parameter variable within a range of 5-10 mol/L of a pore solution (i.e., the pore space fraction filled with a charged solution is approximately 1/3 and, therefore, the concentration of fixed groups per 1 L of membrane volume is multiplied by 3). The lower limit (5 mol/L) was estimated from the experimental data on the zeta-potential ζ of the CMX substrate membrane, on which Ca 2+ were adsorbed [46]. According to these data, ζ changes from -28.3 to +48 mV after 12 h of membrane operation in a CaCl 2 solution to evidence not only the change of the charge sign, but also an essential increment in the surface charge by absolute value.…”

Section: Parameters Of the Substrate Membrane And Modification Layersmentioning

confidence: 99%

Mathematical Modeling of the Selective Transport of Singly Charged Ions Through Multilayer Composite Ion-Exchange Membrane during Electrodialysis

Gorobchenko

Gil²,

Nikonenko³

et al. 2022

Membr. Membr. Technol.

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The deposition of several alternating anion- and cation-exchange surface layers (layer-by-layer method) is a promising technique for the modification of ion-exchange membranes, which makes it possible to essentially increase their selectivity to singly charged ions. This paper presents a one-dimensional model, which is based on the Nernst–Planck–Poisson equations and describes the competitive transfer of singly and doubly charged ions through a multilayer composite ion-exchange membrane. It has been revealed for the first time that, as in the earlier studied case of a bilayer membrane, the dependence of the specific permselectivity coefficient (P1/2) of a multilayer membrane on the electrical current density passes through a maximum $$\left( {P_{{{1 \mathord{\left/ {\vphantom {1 2}} \right. \kern-0em} 2}}}^{{\max }}} \right).$$ It has been shown that an increase in the number of nanosized modification bilayers n leads to the growth of $$P_{{{1 \mathord{\left/ {\vphantom {1 2}} \right. \kern-0em} 2}}}^{{\max }},$$ but the flux of a preferably transferred ion decreases in this case. It has been established that $$P_{{{1 \mathord{\left/ {\vphantom {1 2}} \right. \kern-0em} 2}}}^{{\max }}$$ is attained at underlimiting current densities and relatively low potential drop. The simulated dependences $$P_{{{1 \mathord{\left/ {\vphantom {1 2}} \right. \kern-0em} 2}}}^{{\max }}$$(n) qualitatively agree with the known literature experimental and theoretical results.

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How bulk and surface properties of sulfonated cation-exchange membranes response to their exposure to electric current during electrodialysis of a Ca2+ containing solution

Cited by 23 publications

References 69 publications

Comparison of the Electrodialysis Performance in Tartrate Stabilization of a Red Wine Using Aliphatic and Aromatic Commercial and Modified Ion-Exchange Membranes

Comparison of the Electrodialysis Performance in Tartrate Stabilization of a Red Wine Using Aliphatic and Aromatic Commercial and Modified Ion-Exchange Membranes

Ion and Water Transport in Ion-Exchange Membranes for Power Generation Systems: Guidelines for Modeling

Mathematical Modeling of the Selective Transport of Singly Charged Ions Through Multilayer Composite Ion-Exchange Membrane during Electrodialysis

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