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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Inorganic Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Inorganic Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал неорганической химии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0044-457X</issn><issn publication-format="electronic">3034-560X</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">690771</article-id><article-id pub-id-type="doi">10.31857/S0044457X25080138</article-id><article-id pub-id-type="edn">jjycdb</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>НЕОРГАНИЧЕСКИЕ МАТЕРИАЛЫ И НАНОМАТЕРИАЛЫ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Preparation and investigation of composite based on reduced graphene oxide and Fe3O4 nanoparticles</article-title><trans-title-group xml:lang="ru"><trans-title>Получение и исследование композита на основе восстановленного оксида графена и наночастиц Fe3O4</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ibragimova</surname><given-names>V. R.</given-names></name><name xml:lang="ru"><surname>Ибрагимова</surname><given-names>В. Р.</given-names></name></name-alternatives><email>Acidladj@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sapkov</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Сапков</surname><given-names>И. В.</given-names></name></name-alternatives><email>Acidladj@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Efremova</surname><given-names>E. I.</given-names></name><name xml:lang="ru"><surname>Ефремова</surname><given-names>Е. И.</given-names></name></name-alternatives><email>Acidladj@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kudryashova</surname><given-names>Z. A.</given-names></name><name xml:lang="ru"><surname>Кудряшова</surname><given-names>З. А.</given-names></name></name-alternatives><email>Acidladj@mail.ru</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Rustamova</surname><given-names>E. G.</given-names></name><name xml:lang="ru"><surname>Рустамова</surname><given-names>Е. Г.</given-names></name></name-alternatives><email>Acidladj@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Korolev</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Королёв</surname><given-names>Д. В.</given-names></name></name-alternatives><email>Acidladj@mail.ru</email><xref ref-type="aff" rid="aff6"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kunitsyna</surname><given-names>E. I.</given-names></name><name xml:lang="ru"><surname>Куницына</surname><given-names>Е. И.</given-names></name></name-alternatives><email>Acidladj@mail.ru</email><xref ref-type="aff" rid="aff6"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ioni</surname><given-names>Y. V.</given-names></name><name xml:lang="ru"><surname>Иони</surname><given-names>Ю. В.</given-names></name></name-alternatives><email>Acidladj@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences (IGIC RAS)</institution></aff><aff><institution xml:lang="ru">Институт общей и неорганической химии им. Н.С. Курнакова РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Department of Materials Science, Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский государственный университет им. М.В. Ломоносова, Факультет наук о материалах</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Physics Department, Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский государственный университет им. М.В. Ломоносова, Физический факультет</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Lomonosov Moscow State University of Fine Chemical Technologies</institution></aff><aff><institution xml:lang="ru">МИРЭА — Московский технологический университет. Институт тонких химических технологий</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Joint Stock Company “Aviation Electronics and Communication”</institution></aff><aff><institution xml:lang="ru">Акционерное общество “Авиационная электроника и коммуникационные системы”</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">The Institute of Problems of Chemical Physics (IPCP)</institution></aff><aff><institution xml:lang="ru">Федеральный исследовательский центр проблем химической физики и медицинской химии РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2025</year></pub-date><volume>70</volume><issue>8</issue><issue-title xml:lang="en">VOL 70, NO8 (2025)</issue-title><issue-title xml:lang="ru">ТОМ 70, №8 (2025)</issue-title><fpage>1089</fpage><lpage>1096</lpage><history><date date-type="received" iso-8601-date="2025-09-21"><day>21</day><month>09</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://transsyst.ru/0044-457X/article/view/690771">https://transsyst.ru/0044-457X/article/view/690771</self-uri><abstract xml:lang="en"><p>Graphene oxide (GO) and composites based on it are often used to produce graphene-like materials by thermal or chemical reduction, and the reduction method strongly affects the properties of the materials. In this study, a new method was proposed to prepare a conductive composite based on reduced graphene oxide (RGO) with magnetite nanoparticles (NPs) with an average diameter of 18 nm dispersed on its surface. The method consisted of treating a GO-based composite with Fe<sub>3</sub>O<sub>4</sub> on the its surface in supercritical isopropanol. The composites based on GO and RGO and magnetite NPs were investigated by FTIR spectroscopy, X-ray diffractive analysis and scanning electron microscopy. It is shown that the sample compact film of the RGO-based composite has specific surface resistivity is 22 Ohm/cm² and saturation magnetisation is 32.3 emu/g.</p></abstract><trans-abstract xml:lang="ru"><p>Оксид графена (ОГ) и композиты на его основе часто используются для получения графеноподобных материалов термическим или химическим восстановлением, при этом метод восстановления сильно влияет на свойства материалов. В исследовании предложен новый метод получения проводящего композита на основе восстановленного оксида графена (ВОГ), на поверхности которого диспергированы наночастицы (НЧ) магнетита со средним диаметром 18 нм. Метод заключается в обработке композита на основе ОГ, на поверхность которого предварительно нанесены НЧ Fe<sub>3</sub>O<sub>4</sub> в сверхкритическом изопропаноле. Композиты на основе ОГ и ВОГ и НЧ магнетита исследованы методами ИК-спектроскопии, рентгенофазового анализа и сканирующей электронной микроскопии. Показано, что поверхностное сопротивление пленки полученного композита на основе ВОГ составляет 22 Ом/см², намагниченность насыщения — 32.3 эме/г.</p></trans-abstract><kwd-group xml:lang="en"><kwd>carbon nanomaterials</kwd><kwd>reduced graphene oxide</kwd><kwd>magnetite</kwd><kwd>composite material</kwd><kwd>conductivity</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>углеродные наноматериалы</kwd><kwd>восстановленный оксид графена</kwd><kwd>магнетит</kwd><kwd>композиционный материал</kwd><kwd>проводимость</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Chang H. // MRS Bulletin. 2015. V. 40. № 5. P. 445. https://doi.org/10.1557/mrs.2015.93</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Wang P., Hu M., Wang H. et al. // Adv. Sci. 2020. V. 7. № 20. 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