[EN] Лаборатории

Contract number

075-15-2022-1117

Time span of the project

2022-2024

Laboratory's website

since December 2023 Churakov Andrei Viktorovich

2022 - 2023 Ameduri Bruno Michel

As of 01.12.2023

Number of staff members

scientific publications

Objects of intellectual property

Name of the project:

Self-organizing fluorinated polymers for the creation of recyclable membranes with optimized proton conductivity

Research directions: Materials technologies

Goals of project:

The development of a new class of cost-efficient proton-exchange membranes (PEM) that contain a fluorinated matrix and sulfoacids to ensure the required chemical stability and a elaboration of a mechanism of proton transfer during the simultaneous use of the processes of molecular self-assembly for controlling the topology and the orientation of channels in finite membranes.

Project objective:

The project is aimed at the development of recyclable fluorinated polymers that contain acid groups and are capable of self-organization into 3D structures in a way that ensures more efficient percolation compared to existing commercial ion membranes, such as Nafion TM. It is worth noting that, in contrast with Nafion, the newly developed materials will be suitable for recycling since instead of a crystalline frameworks made of tetrafluoroethylene they will be based on a vinylidene fluoride platform that can be easily depolymerized, for instance, in a basic medium. Apart from copolymers that are derivatives of polyvinylidene fluoride, in this project we will develop and test new brush polymers, including homopolymers and block-copolymers containing proton-exchange side groups and a main polymer chain with controlled stereoregularity. Such molecular architectures will allow for the creation of a new class cost-efficient proton-exchange membranes based on fluorinated matrices and sulfoacids preserving the necessary chemical stability and a mechanism for proton transport, integrating self-organizing fragments into the structure of the polymer. The implementation of the project will rely on joint efforts of a French and a Russian research group that will be responsible for tasks related to the synthesis of new fluorinated polymers/oligomers, the in-depth morphological study of the developed polymer materials and the physico-mathematical research of finite ion membranes as well as problems of testing of fuel cells based membranes created by the laboratory.

Scientific results:

New ion-conducting membranes based on an ionomer with short side chains and perfluorinated sulfonic acid have been developed for next-generation fuel cells. The processes of membrane formation from dispersions under various conditions were studied, allowing for the optimization of the preparation method and improvement of transport properties. Experimental studies and modeling demonstrated the role of the crystalline structure in forming the channel topology to enhance selectivity and proton conductivity. Fuel cell prototypes based on the developed membranes showed performance characteristics comparable to the best foreign analogs.

Implementation of research results:

Implementation of the results is planned after the completion of the project with the involvement of the leading manufacturers of fluorine-containing membranes in Russia

Organizational and infrastructural changes:

An international laboratory equipped with modern analytical equipment has been set up at the Lomonosov Moscow State University's Faculty of Chemistry. The equipment is used for educational activities, realization of scientific projects and for attracting industrial partners.

Education and personnel occupational retraining:

Within the framework of the project the staff of the MSU Faculty of Chemistry was trained in methods of synthesis and characterization of novel ionomer materials using the equipment of the Laboratory of ion-selective membranes. Student internships and staff trips were organized at Kuban State University and Sirius University, where they received training on the latest electron microscope and X-ray diffractometer. New lecture courses on the research topic were developed and incorporated into the curriculum, covering the theoretical and practiScal aspects of using modern equipment for structural analysis of soft matter. The active involvement of students in the project contributed to their professional growth and the preparation of scientific publications and patents related to the project's theme.

Cooperation:

Sirius
Kuban State University
JSC InEnergy

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S. Mareev, А.Gorobchenko, D.Anokhin, V.Nikonenko.

Ion and Water Transport in Ion-Exchange Membranes for Power Generation Systems: Guidelines for Modeling. International Journal of Molecular Sciences, 2022.

D. Anokhin, A. Maryasevskaya, A. Abukaev, U. Ozkose, A. Buglakov, D. A. Ivanov, B. Améduri .

Synthesis of Calamitic Fluorinated Mesogens with Complex Crystallization Behavior. Molecules, 2023.

M. Ponomar, V. Ruleva, V. Sarapulova, N. Pismenskaya, V. Nikonenko, A. Maryasevskaya, D. Anokhin, D. Ivanov, J. Sharma, V. Kulshrestha, B. Améduri

Structural Characterization and Physicochemical Properties of Functionally Porous Proton-Exchange Membrane Based on PVDF-SPA Graft Copolymers. International Journal of molecular Sciences, 2024.

A. V. Dobrynin, Y. Tian, M. Jacobs, E. A. Nikitina, D. Ivanov, M. Maw, F. Vashahi, S.S. Sheiko.

Forensics of polymer networks. Nature Materials, 2023,

A.G. Kislyi, A.E. Kozmai, S.A. Mareev, M.A. Ponomar, D.V. Anokhin, D.A. Ivanov, A.Z. Umarov, A.V. Maryasevskaya, V.V. Nikonenko.

Mathematical modeling of the transport characteristics of a PVDF-based cation-exchange membrane with low water content, Journal of Membrane Science, 2024.

Software for Calculating Transport Characteristics of Proton-Conducting Membranes Based on PVDF Using Their Structural Parameters.

Authors: Mareev S. A., Nikonenko V. V., Gorobchenko A. D., Anokhin D. V., Maryasevskaya A. V., Ivanov D. A. Computer Software, 06.12.2023.

Method for Creating a Temperature Gradient and Investigating the Structure of Polymer Samples with Thermoelectric Properties by X-Ray Diffraction in Grazing Incidence Geometry.

Authors: Rychkov A. A., Anokhin D. V., Maryasevskaya A. V., Sineva L. O., Maksimovich M. S. Trade Secret, 2023.

Hosting organization	Field of studies	City	Invited researcher	Time span of the project
Laboratory for Ultra Wide-band Gap Semiconductors National University of Science and Technology MISIS - (NUST MISIS)	Material Technology	Moscow	Кузнецов Андрей Юрьевич Sweden	2022-2024
Neuroelectronics and Memristive Nanomaterials Research Laboratory (NEUROMENA) Southern Federal University - (SFedU)	Material Technology	Taganrog	Park‬ Bae Ho Korea	2022-2024
Laboratory for Advanced Steels for Agricultural Equipment Russian State Agrarian University - Moscow Timiryazev Agricultural Academy - (RSAU – MTAA named after K.A. Timiryazev)	Material Technology	Moscow	Kaibyshev Rustam Oskarovich Russia	2021-2023

Laboratory for Ion-selective membranes