SYNTHESIS, STRUCTURE, AND MORPHOLOGY OF SmMnO3-LaMnO3 PEROVSKITE COMPOSITE

Authors

DOI:

https://doi.org/10.51580/2026-3.2710-1185.27

Keywords:

perovskite, manganite, Pechini method, XRD, SEM-EDS analysis

Abstract

This article discusses the synthesis, phase composition, and structural morphology of the LaMnO3-SmMnO3 double manganite perovskite composite. The aim of synthesizing a two-phase manganite containing the rare earth elements samarium and lanthanum is to study the structural features and properties of the resulting products compared to classical perovskite manganites and single-phase samarium and lanthanum manganites. The Pechini method, based on sol-gel synthesis, was used to synthesize the product. The purpose of selecting this method was to obtain a product with high fineness and crystallographic purity. The phase composition and crystallographic parameters were analyzed using X-ray diffraction (XRD), Fourier-transform infrared (FTIR), and morphological methods to determine the formation of bonds between Me-O; scanning electron microscopy (SEM-EDS), scanning surface area, and elemental distribution. The synthesis was carried out based on sol-gel formation in the presence of metal nitrate hydrates. Phase analysis of the product showed that SmMnO3 has the orthorhombic Pbnm (62) structure in accordance with PDF 00-025-0747, while LaMnO3 corresponds to the rhombohedral space group R-3C (167) in accordance with PDF card No. 01-090-6505. It was established that the intense absorption bands in the FTIR spectrum lie within the range of 750–600 cm−1, indicating the formation of Mn–O bonds. SEM-EDS results show that the average particle size of the powdered product is 0.489 μm, and the product was successfully characterized using the elemental distribution map.

Author Biographies

Nurbekova Marzhan Abdyzhaparovna, NJSC «Kazakh National Women's Teacher Training University», Almaty, Kazakhstan

Marzhan Abdyzhaparovna Nurbekova is a Candidate of Chemical Sciences and Acting Associate Professor. She has published more than 50 scientific papers based on the results of her research activities. These include 12 articles published in journals recommended by the Committee for Quality Assurance in Science and Higher Education of the Republic of Kazakhstan, 7 articles indexed in Scopus, 5 articles indexed in Thomson Reuters/Web of Science, 4 articles in international scientific journals, and 14 papers published in the proceedings of international and national scientific conferences. She is the holder of one innovative patent of the Republic of Kazakhstan. In co-authorship, she has published 3 educational and methodological manuals, including 1 in English, as well as 1 individually authored educational and methodological manual. One monograph prepared within the framework of a scientific project is currently in press.

In addition, the scientist has an h-index of 6 in Scopus and 5 in Web of Science.
Scopus Profile
Web of Science Profile

Marzhan Abdyzhaparovna Nurbekova participated as a research team member in scientific projects funded by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan:
– “Synthesis and Physicochemical Investigation of a New Generation of Multifunctional Magnetic Materials” (2015–2017);
– “Development of New Crystal Systems in the Class of Multiferroics and Their Physical Foundations” (2018–2020).

From 2020 to 2022, she served as the principal investigator of the young scientists’ grant-funded research project entitled:
“Development of a Combined Technology for Regeneration of Production Wells and the Bottom-Hole Formation Zone under Conditions of In-Situ Uranium Mining” (IRN AP08052805). The project was successfully completed.

As a recipient of the international state scholarship “500 Scientists” under the Bolashak Program, she collaborated with Professor Bahadir Keskin, PhD, of Yildiz Technical University in submitting an international research proposal to the ULAP grant funding competition. The project topic was:
“Synthesis, magnetic and physico-chemical properties of 3d metal complex oxide magnetic nanoparticles with graphene nanocomposites and improvement of HER and OER activities (MagnetoNanoGraphene, MNG).”

In accordance with the Address of the President of the Republic of Kazakhstan, Kassym-Jomart Tokayev, aimed at transferring advanced scientific technologies, she became a recipient of the “500 Scientists” international scholarship program. She successfully completed a scientific internship at Yildiz Technical University in Istanbul, Turkey, under the supervision of Professor Bahadir Keskin. During the three-month internship, she conducted research in the field of “Nanomaterials and Nanotechnology” and achieved collaborative scientific results. The outcomes of the internship are currently being continued through joint scientific research activities.

The scientific interests of Nurbekova M.A. include the synthesis of new polymeric complex compounds, development of innovative nanomaterials, physicochemical characterization, investigation of magnetic properties, as well as the preparation and study of novel nanomaterials based on various polymers.

Currently, Nurbekova M.A. supervises 3 PhD doctoral students and 3 master’s students.

       

Mataev Mukhametkali Musagalievich, NJSC «Kazakh National Women's Teacher Training University», Almaty, Kazakhstan

Mataev M.M. is a Doctor of Chemical Sciences and Professor specializing in “02.00.01 – Inorganic Chemistry.” His scientific research focuses on “the synthesis of inorganic materials with complex chemical and electrophysical properties, their chemical technology, and physicochemical investigation of the ‘structure–composition–property’ relationship.” He is a specialist in materials science, solid-state chemistry, and uranium chemical technology.

He is the author of more than 270 scientific articles and conference abstracts, 8 educational manuals, 3 monographs, and 10 patents of the Republic of Kazakhstan. His Hirsch index is h = 7. His major scientific results have been published in journals indexed in Scopus and Web of Science, including Materials, Materials Today: Proceedings, Minerals, Mining of Mineral Deposits, Journal of Siberian Federal University. Mathematics & Physics, Physics of the Solid State, Technical Physics, journals of the Russian Academy of Sciences, as well as national scientific journals such as Eurasian Chemico-Technological Journal, Вестник КазНУ, Вестник КарГУ, Химический журнал Казахстана, Известия НАН РК, and others.

His research findings have been presented and discussed at international and national scientific conferences.

ORCID ID:
ORCID Profile

Researcher ID (Web of Science): M-8475-2015
Scopus ID: 6505499263

As the scientific supervisor of the project, Mataev M.M. is responsible for the overall management of the project, coordination of experimental research, monitoring of the research team’s work schedule, and weekly analysis of the obtained results. He also ensures the timely identification and mitigation of potential risks related to achieving the project goals and objectives. In addition, he organizes the timely preparation and submission of materials for intellectual property protection, publication of educational manuals and scientific articles in high-ranking journals, and presentation of research results at international scientific conferences.

Abdraimova Moldir Rashidovna, NJSC «Kazakh National Women's Teacher Training University», Almaty, Kazakhstan

Moldir Rashidkyzy Abdraymova is a PhD, Acting Associate Professor, and Director of the Department of Postgraduate Education at Kazakh National Women's Teacher Training University.

Since 2018, she has served as the Chairperson of the Association of Young Scientist-Educators of Kazakhstan at the Kazakh National Women’s Teacher Training University.

In 2022, she became a recipient of the international Bolashak scholarship under the “500 Scientists” program and completed a scientific internship at Yildiz Technical University.

Since 2024, she has been a member of the Presidium of the Council of Young Scientists under the National Academy of Sciences under the President of the Republic of Kazakhstan.

In 2025, she was awarded the academic badge named after Academician N. Bazanova by the National Academy of Sciences under the President of the Republic of Kazakhstan.

Her scientific research focuses on the synthesis of innovative nanomaterials, investigation of their physicochemical properties, and study of their magnetic characteristics. Since 2015, she has been actively involved in international collaborative research with leading scientific centers, including National University of Uzbekistan, Cavendish Laboratory, Siberian Federal University, Tomsk Polytechnic University, and Yildiz Technical University.

As a result of her scientific research activities, she has published around 50 scientific papers, including articles in journals recommended by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan, as well as journals indexed in Scopus and Web of Science databases. She is the holder of 3 innovative patents, author of 2 methodological manuals, and co-author of a monograph published in English.

Her Hirsch index is h=4 according to Scopus and h=2 according to Web of Science.

Moldir Rashidkyzy Abdraymova participated as a responsible executor in grant-funded scientific projects of the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan:

  • (2015–2017) No. 3288GF/4 — “Synthesis and Physicochemical Investigation of a New Generation of Multifunctional Magnetic Materials”;
  • (2018–2020) No. AP05130165 — “Development of Physical Foundations of New Crystal Systems Belonging to the Multiferroics Class”;
  • (2020–2022) IRN No. AP08052805 — “Development of a Complex Technology for Regeneration of Production Wells and the Bottom-Hole Formation Zone under Uranium Extraction Conditions”.

From 2025 to 2028, she has been serving as a responsible executor of an international project funded by Yildiz Technical University under the BAP program. The project title is:
“Improving the Electrocatalytic Activity and Hydrogen Production of Perovskite-Structured Iron Manganites Enriched with Graphene-Doped Different Transition Metals Perovskite NanoGraphene (PNG).”

Currently, the young scientist is conducting research on the synthesis of novel electrocatalysts and structures with enhanced electronic and catalytic properties for efficient water splitting reactions (OER and HER).

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Published

2026-09-30

Issue

No. 3 (2026): Chemical Journal of Kazakhstan

Section

Articles