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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2024-15-2-224-232</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-58</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMISTRY AND MATERIALS SCIENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И НАУКА О МАТЕРИАЛАХ</subject></subj-group></article-categories><title-group><article-title>Synthesis of magnesium ferrite by combustion of glycine-nitrate gel: the influence of reagents on the gel-precursor and the microstructure of nanopowders</article-title><trans-title-group xml:lang="ru"><trans-title>Синтез феррита магния методом горения глицин-нитратного геля: влияние реагентов на гель-прекурсор и микроструктуру нанопорошков</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2707-7975</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнова</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnova</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="en"><p>Maria N. Smirnova.</p><p>119991, 31 Leninsky Prospect, Moscow</p></bio><email xlink:type="simple">smirnovamn@igic.ras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2892-6054</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никифорова</surname><given-names>Г. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikiforova</surname><given-names>G. E.</given-names></name></name-alternatives><bio xml:lang="en"><p>Galina E. Nikiforova.</p><p>119991, 31 Leninsky Prospect, Moscow</p></bio><email xlink:type="simple">gen@igic.ras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2508-9868</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кондратьева</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kondrat’eva</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="en"><p>Olga N. Kondrat’eva.</p><p>119991, 31 Leninsky Prospect, Moscow</p></bio><email xlink:type="simple">olga.kondratieva@igic.ras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>31</day><month>05</month><year>2025</year></pub-date><volume>15</volume><issue>2</issue><fpage>224</fpage><lpage>232</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Smirnova M.N., Nikiforova G.E., Kondrat’eva O.N., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Смирнова М.Н., Никифорова Г.Е., Кондратьева О.Н.</copyright-holder><copyright-holder xml:lang="en">Smirnova M.N., Nikiforova G.E., Kondrat’eva O.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://nanojournal.ifmo.ru/jour/article/view/58">https://nanojournal.ifmo.ru/jour/article/view/58</self-uri><abstract><p>In this study, the influence of initial reagents on the phase composition and morphology of magnesium ferrite obtained by combustion of glycine-nitrate gel was investigated. The local environment of iron ions in the gel-precursor was studied in detail using FT-IR, XANES- and EXAFS-spectroscopy. It has been established that in the gel-precursor obtained by dissolving metals (Mg, Fe) in dilute nitric acid, binuclear Fe(III) complexes are formed, while in a similar gel-precursor obtained from crystalline hydrates of nitrates of the corresponding metals, trinuclear Fe(III) complexes predominate. Combustion of a gel consisting of binuclear Fe(III) complexes leads to the formation of nanocrystalline magnesium ferrite powder, characterized by a unimodal particle size distribution.</p></abstract><trans-abstract xml:lang="ru"><p>В данной работе исследовано влияние исходных реагентов на фазовый состав и морфологию феррита магния, полученного сжиганием глицин-нитратного геля. Локальное окружение ионов железа в геле-прекурсоре детально изучено методами ИК-Фурье, XANES- и EXAFS-спектроскопии. Установлено, что в геле-прекурсоре, полученном растворением металлов (Mg, Fe) в разбавленной азотной кислоте, образуются биядерные комплексы Fe(III), тогда как в аналогичном геле-прекурсоре, полученном из кристаллогидратов нитратов соответствующих металлов преобладают трехъядерные комплексы Fe(III). Горение геля, состоящего из биядерных комплексов Fe(III), приводит к образованию нанокристаллического порошка феррита магния, характеризующегося унимодальным распределением частиц по размерам.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>горение геля</kwd><kwd>глицин</kwd><kwd>шпинель</kwd><kwd>нанопорошки</kwd><kwd>MgFe2O4</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gel combustion</kwd><kwd>glycine</kwd><kwd>spinel</kwd><kwd>nanopowders</kwd><kwd>MgFe2O4</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This research was supported by the Russian Science Foundation (project No. 22-73-00185). 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