Nurbekova M.A

• • +1 Фото

  • Project Title: Investigation of the Electrocatalytic Properties of Composites and Nanocomposites for Hydrogen Production

    Project Objective: The objective of the project is the synthesis of perovskite-structured ferrites and manganites (LMO, LFO) exhibiting electrocatalytic properties for application in water electrolysis processes, as well as graphene-based nanocomposites.

    Project Tasks

    The project objective will be achieved through the following tasks:

    • Literature Review and Analysis

    Conduct a comprehensive analysis and review of publications by domestic and international researchers on electrocatalytic perovskite structures based on cost-effective lanthanides—nanomanganites, nanoferrites, and graphene oxide (GO)—used in water electrolysis processes.

     

    • Synthesis of Perovskite Nanomanganites and Nanoferrites

    Synthesize nanomanganites or nanoferrites with the composition:

    ABO₃ (LMO or LFO), where
    A = LaₓA₁₋ₓ (Sm, Ce),
    B = Mn, Fe,
    x = 0.1–0.9,

    using various synthesis methods and determine the most efficient preparation route.

    Implementation Method:
    Since the compositional accuracy and phase purity of perovskite-like manganite–ferrites strongly depend on the synthesis method, LMO and LFO nanocomposites will be prepared using several techniques (sol–gel method, solid-state synthesis, etc.) to identify the optimal approach.

     

    • Morphological and Structural Characterization

    Perform morphological and structural analysis of the synthesized perovskite manganites and ferrites.

    Implementation Method:
    After synthesis, phase analysis will be conducted using X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), and Fourier-transform infrared spectroscopy (FTIR) to confirm the morphology, composition, and size characteristics of the synthesized perovskite-type nanomanganites and nanoferrites.

    • Synthesis of Graphene Oxide and Nanocomposites

    Synthesize graphene oxide (GO) and deposit perovskite-structured nanomanganites or nanoferrites onto its surface to obtain complex oxide nanocomposites of LMO/GO or LFO/GO structure.

    Implementation Method:
    Graphene oxide will be synthesized using a modified Hummers method. The perovskite–graphene nanocomposite (PNG) with LMO/GO or LFO/GO structure will be prepared using a hydrothermal (HT) method.

    • Investigation of Electrocatalytic Activity

    Study the electrocatalytic activity of the obtained LMO or LFO/GO nanocomposites in water electrolysis.

    Implementation Method:
    Electrocatalytic performance will be evaluated using electrochemical techniques, including:

    • Linear sweep voltammetry (LSV)
    • Electrochemical impedance spectroscopy (EIS)
    • Cyclic voltammetry (CV)
    • Tafel slope analysis

    Hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) processes will be analyzed.

    Alignment with Strategic Documents

    The project is developed in accordance with Direction 4 (“Ecology of the Future”) of the national project “Zhasyl Kazakhstan” (Resolution of the Government of the Republic of Kazakhstan No. 731 dated October 12, 2021).

    It also aligns with the long-term priorities of the Kazakhstan–2050 Development Strategy and the objectives of the National Development Plan in the area of ensuring high-quality education.

     

    Application and Commercialization Potential

    The obtained scientific results may be used for the development of new catalytic materials and advanced technological solutions. The research outcomes are innovative in nature and have strong potential for future commercialization.

     

    Technology Readiness Level (TRL)

    Currently, the technology readiness level of the development is assessed as TRL 1. Upon completion of the project, it is expected to reach TRL 4.

     

    Project implementation plan

     

    № /с	Name of tasks and activities for their implementation	Expected results of the project implementation (in terms of tasks and activities), completion form
    1	Development of a synthesis technology for a novel perovskite-like type in the ternary manganite–ferrite system (LMO, LFO) with incorporation of rare-earth elements into lanthanum of the composition: ABO₃ (LMO or LFO), where A = LaₓA′₁₋ₓ (Sm, Ce); B = Mn, Fe; x = 0.1–0.9.	Investigation of the phase composition, structural properties, and surface size characteristics of the newly synthesized perovskite-like manganite. A new synthesis technology will be developed for the ternary manganite–ferrite system (LMO, LFO) with the incorporation of rare-earth elements into lanthanum of the composition: ABO₃(LMO or LFO),where A=LaₓA′₁₋ₓ(Sm, Ce);B = Mn, Fe; x = 0.1–0.9. The composition and crystal structure of the newly synthesized perovskite-like manganites will be analyzed using X-ray diffraction (XRD), followed by structural parameter refinement using the Rietveld method.
    1.1	Synthesis of the ternary ABO₃ system (LMO or LFO) (ABO₃: A = LaₓA′₁₋ₓ (Sm, Ce); B = Mn, Fe; x = 0.1–0.9).	New perovskite-like manganites and ferrites (LMO, LFO) were synthesized using optimized sol-gel methods.
    1.2	Исследование фазового состава, структурных свойств и размеров поверхности недавно синтезированного перовскитоподобного манганита.	The phase composition (X-ray diffraction analysis), structural properties, particle size, and surface morphology of the new perovskite-like manganites will be studied using scanning electron microscopy (SEM or TEM), and the chemical composition of the prepared samples will be studied using X-ray photoelectron spectroscopy (XPS).
    2	Synthesis and characterization of graphene oxide (GO) and synthesis of a new nanocomposite with electrocatalytic properties from a material containing perovskite-like manganite, ferrite and graphene oxide (LMO, LFO/GO).	Graphene oxide is synthesized using a modified Hammer method. Nanocomposites of the resulting graphene oxide, manganite, and ferrite (LMO, LFO/GO) are produced using an optimized method. The structural, morphological, and optical properties of the synthesized new nanocomposites will be analyzed using X-ray diffractometry, transmission electron microscopy or scanning electron microscopy, X-ray photoelectron spectroscopy, and ultraviolet absorption spectroscopy.
    2.1	Synthesis, production and characterization of the structure and properties of graphene oxide (GO).	Graphene oxide (GO) is synthesized using a modified Hammer method, and its structural and functional characteristics are studied using various spectroscopic methods (X-ray diffraction, scanning electron microscopy with energy dispersive analysis, infrared spectroscopy).
    2.2	Synthesis of a new nanocomposite – perovskite-like manganites, ferrites/graphene oxide (LMO, LFO/GO)	Synthesis of a Novel Nanocomposite with Electrocatalytic Properties of LMO and LFO/GO Structure by the Hydrothermal (HT) Method Publication Requirements Option 1 At least 3 (three) articles and/or review papers in the scientific field of the project published in peer-reviewed journals that: belong to the 1st, 2nd, and/or 3rd quartile by impact factor in the Web of Science database and are indexed in the Science Citation Index Expanded, and/or are indexed in the Scopus database with a CiteScore percentile of at least 60. At least 2 (two) articles or reviews in peer-reviewed international or national journals recommended by the Committee for Quality Assurance in Science and Higher Education. One of the published papers must be in the Multidisciplinary category (multidisciplinary or with interdisciplinary practical application). For national journals not classified as Multidisciplinary but included in the list recommended by the Committee for Quality Assurance in Science and Higher Education, journals indexed simultaneously in two or more categories (Categories 1 and 2 of the Committee’s list) are counted.   Option 2 At least 2 (two) articles and/or review papers in peer-reviewed journals that: belong to the 1st, 2nd, and/or 3rd quartile in Web of Science and are indexed in the Science Citation Index Expanded, and/or are indexed in Scopus with a CiteScore percentile of at least 70. At least 2 (two) articles or reviews in peer-reviewed international or national journals recommended by the Committee for Quality Assurance in Science and Higher Education. One of the published papers must be in the Multidisciplinary category. For national journals not classified as Multidisciplinary but included in the Committee’s list, journals indexed in two or more categories (Categories 1 and 2) are counted.   Option 3 At least 1 (one) article or review in a peer-reviewed journal that: belongs to the 1st quartile in Web of Science and is indexed in the Science Citation Index Expanded, or is indexed in Scopus with a CiteScore percentile of at least 90. At least 1 (one) article or review in a peer-reviewed international or national journal recommended by the Committee for Quality Assurance in Science and Higher Education. One of the published papers must be in the Multidisciplinary category. For national journals not classified as Multidisciplinary but included in the Committee’s list, journals indexed in two or more categories (Categories 1 and 2) are counted.   Research Outcomes The electrocatalytic activity of nanocomposites based on perovskite-like ferrite and manganite/graphene oxide (LMO, LFO/GO) has been investigated. The electrode materials were analyzed using electrochemical methods, including: Cyclic voltammetry (CV) Linear sweep voltammetry (LSV) Tafel slope analysis Electrochemical impedance spectroscopy (EIS) The hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) processes were systematically evaluated.
    3	The aim of this study is to determine the electrocatalytic activity of nanocomposites based on perovskite-like manganite, ferrite and graphene oxide (LMO, LFO/GO) and to study their ability to undergo hydrogen evolution reaction using electrochemical analysis.	The electrocatalytic activity of perovskite-like ferrite, manganite/graphene oxide (LMO, LFO/GO) nanocomposites was investigated and these electrode materials were analyzed using electrochemical methods such as cyclic voltammetry (CV), linear voltammetry (LSV), Tafel method, electrochemical impedance spectroscopy (EIS), for hydrogen evolution reactions (HER) and oxygen evolution reactions (OER).
    3.1	The aim of this study is to develop suitable reactor and electrode combinations for the electrochemical system designed for hydrogen evolution reaction (HER) and to carry out highly efficient reactions in the presence of optimized electrocatalysts in the developed system.	The developed reactor system will include optimized photoelectrodes, as well as testing the performance of new nanocomposites based on perovskite-like ferrite, manganite and graphene oxide, and developing suitable reactor-electrode combinations for electrochemical hydrogen production (HER) systems.
    3.2	The aim of the study is to investigate and confirm the electrocatalytic properties of intercrystalline interactions of perovskite-like manganite and graphene oxide, as well as their properties and relationships in hydrogen evolution reactions (HER) and oxygen evolution reactions (OER).	Catalytic Properties in an Oxidation–Reduction Reaction Medium The oxidation behavior of perovskite-like manganite and ferrite/graphene oxide nanoparticles will be investigated in a redox reaction environment. Their catalytic reactivity in the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) processes will also be evaluated and calculated.   Expected Publication Outcomes of the Project Option 1 At least 3 (three) research articles and/or review papers in the scientific field of the project published in peer-reviewed journals that: belong to the 1st, 2nd, and/or 3rd quartile by impact factor in the Web of Science database and are indexed in the Science Citation Index Expanded (SCIE), and/or are indexed in the Scopus database with a CiteScore percentile of at least 60. At least 2 (two) articles or review papers published in peer-reviewed international or national journals recommended by the Committee for Quality Assurance in Science and Higher Education. One of the published papers must be in the Multidisciplinary category (multidisciplinary or with interdisciplinary practical application). For national journals not classified as Multidisciplinary but included in the list recommended by the Committee for Quality Assurance in Science and Higher Education, journals indexed simultaneously in two or more categories (Categories 1 and 2 of the Committee’s list) will be counted.   Option 2 At least 2 (two) research articles and/or review papers in peer-reviewed journals that: belong to the 1st, 2nd, and/or 3rd quartile in Web of Science and are indexed in Science Citation Index Expanded, and/or are indexed in Scopus with a CiteScore percentile of at least 70. At least 2 (two) articles or reviews in peer-reviewed international or national journals recommended by the Committee for Quality Assurance in Science and Higher Education. One of the published papers must be in the Multidisciplinary category. For national journals not classified as Multidisciplinary but included in the Committee’s list, journals indexed in two or more categories (Categories 1 and 2) will be counted.   Option 3 At least 1 (one) article or review paper in a peer-reviewed scientific journal that: belongs to the 1st quartile in Web of Science and is indexed in Science Citation Index Expanded, or is indexed in Scopus with a CiteScore percentile of at least 90. At least 1 (one) article or review in a peer-reviewed international or national journal recommended by the Committee for Quality Assurance in Science and Higher Education. One of the published papers must be in the Multidisciplinary category. For national journals not classified as Multidisciplinary but included in the Committee’s list, journals indexed in two or more categories (Categories 1 and 2) will be counted.