Characterization of perfluorinated cation-exchange membranes MF-4SC surface modified with halloysite nanotubes

Филиппов, А. Н.; Афонин, Д. С.; Kononenko, N. A.; Shkirskaya, S. A.

doi:10.1063/1.4934288

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…Plasma carbon deposition on the membrane surface led to similar results [ 270 ]. It is also reported that, using plasma treatment, aluminosilicate nanotubes can be introduced into the surface layers of membranes [ 271 ].…”

Section: Membranes With Modified Surfacementioning

confidence: 99%

Selectivity of Transport Processes in Ion-Exchange Membranes: Relationship with the Structure and Methods for Its Improvement

Стенина

Голубенко

Nikonenko

et al. 2020

IJMS

125

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Nowadays, ion-exchange membranes have numerous applications in water desalination, electrolysis, chemistry, food, health, energy, environment and other fields. All of these applications require high selectivity of ion transfer, i.e., high membrane permselectivity. The transport properties of ion-exchange membranes are determined by their structure, composition and preparation method. For various applications, the selectivity of transfer processes can be characterized by different parameters, for example, by the transport number of counterions (permselectivity in electrodialysis) or by the ratio of ionic conductivity to the permeability of some gases (crossover in fuel cells). However, in most cases there is a correlation: the higher the flux density of the target component through the membrane, the lower the selectivity of the process. This correlation has two aspects: first, it follows from the membrane material properties, often expressed as the trade-off between membrane permeability and permselectivity; and, second, it is due to the concentration polarization phenomenon, which increases with an increase in the applied driving force. In this review, both aspects are considered. Recent research and progress in the membrane selectivity improvement, mainly including a number of approaches as crosslinking, nanoparticle doping, surface modification, and the use of special synthetic methods (e.g., synthesis of grafted membranes or membranes with a fairly rigid three-dimensional matrix) are summarized. These approaches are promising for the ion-exchange membranes synthesis for electrodialysis, alternative energy, and the valuable component extraction from natural or waste-water. Perspectives on future development in this research field are also discussed.

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Section: Membranes With Modified Surfacementioning

confidence: 99%

Selectivity of Transport Processes in Ion-Exchange Membranes: Relationship with the Structure and Methods for Its Improvement

Стенина

Голубенко

Nikonenko

et al. 2020

IJMS

125

View full text Add to dashboard Cite

show abstract

“…Furthermore, the modified surface can be treated using thermal treatment to improve the compatibility between membrane surface and the nanolayer of particles . A low‐temperature microwave plasma was used to coat a commercial membrane with aluminosilicate nanotubes (halloysite) . The suspension was prepared by degassing the nanotube powder under vacuum and 200 °C.…”

Section: Surface‐modification Methodsmentioning

confidence: 99%

Surface modification of ion‐exchange membranes: Methods, characteristics, and performance

Khoiruddin

Ariono

Subagjo

et al. 2017

J of Applied Polymer Sci

105

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Considerable effort has been made to improve ion-exchange membrane (IEM) properties in order to achieve better performance of IEM-based processes in various applications. Surface modification is one of the effective ways to improve IEM properties. Various methods have been used to modify IEM surfaces, for example, plasma treatment, polymerization, solution casting, electrodeposition, and ion implantation. These methods are able to produce a thin and fine distributed layer and also to modify the chemical structure of the surface. The new layer can be adsorbed, deposited, or chemically bonded on a membrane surface. By using these methods, IEM properties are improved, and the desired or specific characteristics such as high monovalent ion permselectivity, low fuel crossover, and anti-organic-fouling property can be obtained. In this paper, methods for surface modification of IEMs are reviewed. Moreover, the effects of modification on IEM properties and performance are discussed.

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Electrochemical membrane materials and modules

Chen

Yuan

et al. 2022

Electrochemical Membrane Technology for Water and Wastewater Treatment

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Characterization of perfluorinated cation-exchange membranes MF-4SC surface modified with halloysite nanotubes

Cited by 5 publications

References 12 publications

Selectivity of Transport Processes in Ion-Exchange Membranes: Relationship with the Structure and Methods for Its Improvement

Selectivity of Transport Processes in Ion-Exchange Membranes: Relationship with the Structure and Methods for Its Improvement

Surface modification of ion‐exchange membranes: Methods, characteristics, and performance

Electrochemical membrane materials and modules

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