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Baldanov BB. Contact Properties of Polytetrafluoroethylene Films Modified in Nonthermal Plasma of Atmospheric-Pressure Argon Glow Discharge. HIGH ENERGY CHEMISTRY 2022. [DOI: 10.1134/s0018143922040026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Baldanov BB, Ranzhurov TV. Influence of Current Spreading on Polymer Surface on Determination of Total Surface Energy. HIGH ENERGY CHEMISTRY 2021. [DOI: 10.1134/s0018143921020028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Zyryanova S, Mareev S, Gil V, Korzhova E, Pismenskaya N, Sarapulova V, Rybalkina O, Boyko E, Larchet C, Dammak L, Nikonenko V. How Electrical Heterogeneity Parameters of Ion-Exchange Membrane Surface Affect the Mass Transfer and Water Splitting Rate in Electrodialysis. Int J Mol Sci 2020; 21:ijms21030973. [PMID: 32024103 PMCID: PMC7037469 DOI: 10.3390/ijms21030973] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 11/16/2022] Open
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, δ (about 250 μm in the experimental conditions), and the distance between the spots was slightly larger than δ, such that the fraction of the screened surface was about 20%.
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Affiliation(s)
- Svetlana Zyryanova
- Department of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia; (S.Z.); (S.M.); (V.G.); (N.P.); (V.S.); (O.R.); (E.B.)
| | - Semyon Mareev
- Department of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia; (S.Z.); (S.M.); (V.G.); (N.P.); (V.S.); (O.R.); (E.B.)
| | - Violetta Gil
- Department of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia; (S.Z.); (S.M.); (V.G.); (N.P.); (V.S.); (O.R.); (E.B.)
| | - Elizaveta Korzhova
- Institut UTINAM (UMR CNRS 6213), Université de Bourgogne-Franche-Comté, 16 Route de Gray, 25030 Besançon CEDEX, France;
| | - Natalia Pismenskaya
- Department of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia; (S.Z.); (S.M.); (V.G.); (N.P.); (V.S.); (O.R.); (E.B.)
| | - Veronika Sarapulova
- Department of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia; (S.Z.); (S.M.); (V.G.); (N.P.); (V.S.); (O.R.); (E.B.)
| | - Olesya Rybalkina
- Department of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia; (S.Z.); (S.M.); (V.G.); (N.P.); (V.S.); (O.R.); (E.B.)
| | - Evgeniy Boyko
- Department of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia; (S.Z.); (S.M.); (V.G.); (N.P.); (V.S.); (O.R.); (E.B.)
| | - Christian Larchet
- Institut de Chimie et des Matériaux Paris-Est, UMR7182 CNRS–Université Paris-Est, 2 Rue Henri Dunant, 94320 Thiais, France; (C.L.); (L.D.)
| | - Lasaad Dammak
- Institut de Chimie et des Matériaux Paris-Est, UMR7182 CNRS–Université Paris-Est, 2 Rue Henri Dunant, 94320 Thiais, France; (C.L.); (L.D.)
| | - Victor Nikonenko
- Department of Physical Chemistry, Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia; (S.Z.); (S.M.); (V.G.); (N.P.); (V.S.); (O.R.); (E.B.)
- Correspondence: ; Tel.: +7-918-414-5816
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Kravets LI, Altynov VA, Yablokov MY, Gilman AB, Satulu V, Mitu B, Dinescu G. Investigation of Morphology and Chemical Structure of Nanosized Polytetrafluoroethylene Films Deposited on the Surface of Track-Etched Membranes by Plasma Processing. HIGH ENERGY CHEMISTRY 2018. [DOI: 10.1134/s0018143918040094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gilman AB, Piskarev MS, Yablokov MY, Kuznetsov AA. Surface modification of polyfluoroolefin films by glow discharge. RUSS J GEN CHEM+ 2015. [DOI: 10.1134/s1070363215050461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yablokov MY, Shevchenko VG, Gilman AB, Kuznetsov AA. Dielectric properties of polytetrafluoroethylene films modified by direct current discharge. HIGH ENERGY CHEMISTRY 2014. [DOI: 10.1134/s0018143914040134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yablokov MY, Sokolov IV, Malinovskaya OS, Gil’man AB, Kuznetsov AA. Determination of modified-layer thickness of glow-discharge-treated polytetrafluoroethylene film. HIGH ENERGY CHEMISTRY 2012. [DOI: 10.1134/s0018143913010062] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gil’man AB, Piskarev MS, Yablokov MY, Surin NM, Shmakova NA, Kuznetsov AA. Modification of tetrafluoroethylene-perfluoropropylvinyl ether copolymer films in direct-current discharge. HIGH ENERGY CHEMISTRY 2012. [DOI: 10.1134/s0018143912060045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yablokov MY, Gil’man AB, Kechek’yan AS, Kuznetsov AA. Multilayer composite material based on plasma-modified PTFE films. HIGH ENERGY CHEMISTRY 2012. [DOI: 10.1134/s0018143912030137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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