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Ponomar M, Ruleva V, Sarapulova V, Pismenskaya N, Nikonenko V, Maryasevskaya A, Anokhin D, Ivanov D, Sharma J, Kulshrestha V, Améduri B. Structural Characterization and Physicochemical Properties of Functionally Porous Proton-Exchange Membrane Based on PVDF-SPA Graft Copolymers. Int J Mol Sci 2024; 25:598. [PMID: 38203772 PMCID: PMC10779367 DOI: 10.3390/ijms25010598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/08/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Fluorinated proton-exchange membranes (PEMs) based on graft copolymers of dehydrofluorinated polyvinylidene fluoride (D-PVDF), 3-sulfopropyl acrylate (SPA), and 1H, 1H, 2H-perfluoro-1-hexene (PFH) were prepared via free radical copolymerization and characterized for fuel cell application. The membrane morphology and physical properties were studied via small-(SAXS) and wide-angle X-ray scattering (WAXS), SEM, and DSC. It was found that the crystallinity degree is 17% for PEM-RCF (co-polymer with SPA) and 16% for PEM-RCF-2 (copolymer with SPA and PFH). The designed membranes possess crystallite grains of 5-6 nm in diameter. SEM images reveal a structure with open pores on the surface of diameters from 20 to 140 nm. Their transport and electrochemical characterization shows that the lowest membrane area resistance (0.9 Ωcm2) is comparable to perfluorosulfonic acid PEMs (such as Nafion®) and polyvinylidene fluoride (PVDF) based CJMC cation-exchange membranes (ChemJoy Polymer Materials, China). Key transport and physicochemical properties of new and commercial membranes were compared. The PEM-RCF permeability to NaCl diffusion is rather high, which is due to a relatively low concentration of fixed sulfonate groups. Voltammetry confers that the electrochemical behavior of new PEM correlates to that of commercial cation-exchange membranes, while the ionic conductivity reveals an impact of the extended pores, as in track-etched membranes.
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Affiliation(s)
- Maria Ponomar
- Department of Physical Chemistry, Kuban State University, 350040 Krasnodar, Russia
| | - Valentina Ruleva
- Department of Physical Chemistry, Kuban State University, 350040 Krasnodar, Russia
| | - Veronika Sarapulova
- Department of Physical Chemistry, Kuban State University, 350040 Krasnodar, Russia
| | - Natalia Pismenskaya
- Department of Physical Chemistry, Kuban State University, 350040 Krasnodar, Russia
| | - Victor Nikonenko
- Department of Physical Chemistry, Kuban State University, 350040 Krasnodar, Russia
- Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University, 119991 Moscow, Russia (B.A.)
| | - Alina Maryasevskaya
- Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University, 119991 Moscow, Russia (B.A.)
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry Russian Academy of Sciences, 142432 Chernogolovka, Russia
| | - Denis Anokhin
- Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University, 119991 Moscow, Russia (B.A.)
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry Russian Academy of Sciences, 142432 Chernogolovka, Russia
- Center for Genetics and Life Science, Sirius University of Science and Technology, 354340 Sochi, Russia
| | - Dimitri Ivanov
- Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University, 119991 Moscow, Russia (B.A.)
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry Russian Academy of Sciences, 142432 Chernogolovka, Russia
- Center for Genetics and Life Science, Sirius University of Science and Technology, 354340 Sochi, Russia
- Institut de Sciences des Matériaux de Mulhouse-IS2M, CNRS UMR 7361, 68057 Mulhouse, France
| | - Jeet Sharma
- Institute Charles Gerhardt, CNRS, University of Montpellier, Ecole Nationale Supérieure de Chimie de Montpellier, 34000 Montpellier, France;
- Membrane Science and Separation Technology Division, Council of Scientific and Industrial Research, Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vaibhav Kulshrestha
- Membrane Science and Separation Technology Division, Council of Scientific and Industrial Research, Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Bruno Améduri
- Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University, 119991 Moscow, Russia (B.A.)
- Institute Charles Gerhardt, CNRS, University of Montpellier, Ecole Nationale Supérieure de Chimie de Montpellier, 34000 Montpellier, France;
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Shkirskaya SA, Kononenko NA, Timofeev SV. Structural and Electrotransport Properties of Perfluorinated Sulfocationic Membranes Modified by Silica and Zirconium Hydrophosphate. MEMBRANES 2022; 12:979. [PMID: 36295738 PMCID: PMC9610900 DOI: 10.3390/membranes12100979] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 09/30/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
A correlation between changes in structural and electrotransport properties of membranes after modification by silica and zirconium hydrophosphate was established. The total water volume, volume fraction of the free water in the membrane and the volume fraction of the water having high binding energy were considered as structural characteristics, which were found from the curves of water distribution on the water binding energy and the effective pore radii. The conductivity, diffusion and electroosmotic permeabilities were investigated as electrotransport properties. The influence of the modifier type on the current flow paths in the membrane was analyzed within the framework of the extended three-wire model. It has been established that the treatment of membranes with alcohol before the intercalation of a modifier leads to the appearance of cavities with an effective size of more than 100 nm filled with free water with the binding energy less than 10 J/mol. It is accompanied with an increase in the diffusion permeability of hybrid membranes by approximately 3-6 times in NaCl and HCl solutions, which limits the application of such materials in proton exchange membrane fuel cells. The different conditions of modification of perfluorinated membranes with similar properties by the dopant with same type allow for the preparation of the hybrid materials for various applications such as electrodialysis concentration or electric current generation devices.
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Affiliation(s)
- Svetlana A. Shkirskaya
- Physical Chemistry Department, Kuban State University, 149 Stavropolskaya Str., 350040 Krasnodar, Russia
| | - Natalia A. Kononenko
- Physical Chemistry Department, Kuban State University, 149 Stavropolskaya Str., 350040 Krasnodar, Russia
| | - Sergej V. Timofeev
- JSC Plastpolymer, 32 Polyustrovskiy prospect, 195197 St. Petersburg, Russia
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Stenina I, Golubenko D, Nikonenko V, Yaroslavtsev A. Selectivity of Transport Processes in Ion-Exchange Membranes: Relationship with the Structure and Methods for Its Improvement. Int J Mol Sci 2020; 21:E5517. [PMID: 32752236 PMCID: PMC7432390 DOI: 10.3390/ijms21155517] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 07/28/2020] [Accepted: 07/30/2020] [Indexed: 11/16/2022] Open
Abstract
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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Affiliation(s)
- Irina Stenina
- Kurnakov Institute of General and Inorganic Chemistry of the RAS, 119991 Moscow, Russia
| | - Daniel Golubenko
- Kurnakov Institute of General and Inorganic Chemistry of the RAS, 119991 Moscow, Russia
| | - Victor Nikonenko
- Membrane Institute, Kuban State University, 350040 Krasnodar, Russia
| | - Andrey Yaroslavtsev
- Kurnakov Institute of General and Inorganic Chemistry of the RAS, 119991 Moscow, Russia
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Parshina AV, Titova TS, Safronova EY, Bobreshova OV, Yaroslavtsev AB. Determination of glycine, alanine, and leucine at different solution ph with the aid of donnan potential sensors based on hybrid membranes. JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1134/s1061934816030102] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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