ArticleInternational journal of molecular sciences2020
How Electrical Heterogeneity Parameters of Ion-Exchange Membrane Surface Affect the Mass Transfer and Water Splitting Rate in Electrodialysis.
Article in International journal of molecular sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Ultra-Thin Ion Exchange Membranes by Low Ionomer Blending for Energy Harvesting.Nanomaterials (Basel, Switzerland) · 2024Article
- Improvement of Selectivity of RALEX-CM Membranes via Modification by Ceria with a Functionalized Surface.Polymers · 2023Article
- Article
- Electrochemical Methods for Water Purification, Ion Separations, and Energy Conversion.Chemical reviews · 2022Review
- The Physical Chemistry and Chemical Physics (PCCP) Section of theInternational journal of molecular sciences · 2021Article
- Review
- Ion and Molecule Transport in Membrane Systems 2.0.International journal of molecular sciences · 2021Article
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Authors and funding
11 authors.
Funding
Abstract
Electrodialysis (ED) has been demonstrated as an effective membrane method for desalination, concentration, and separation. Electroconvection (EC) is a phenomenon which can essentially increase the mass transfer rate and reduce the undesirable water splitting effect. Efforts by a number of researchers are ongoing to create conditions for developing EC, in particular, through the formation of electrical heterogeneity on the membrane surface. We attempt, for the first time, to optimize the parameters of surface electrical heterogeneity for ion-exchange membranes used in a laboratory ED cell. Thirteen different patterns on the surface of two Neosepta anion-exchange membranes, AMX and AMX-Sb, were tested. Low-conductive fluoropolymer spots were formed on the membrane surface using the electrospinning technique. Spots in the form of squares, rectangles, and circles with different sizes and distances between them were applied. We found that the spots' shape did not have a visible effect. The best effect, i.e., the maximum mass transfer rate and the minimum water splitting rate, was found when the spots' size was close to that of the diffusion layer thickness,
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