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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">Doklady Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Doklady Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Российской академии наук. Химия, науки о материалах</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2686-9535</issn><issn publication-format="electronic">3034-5111</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">651912</article-id><article-id pub-id-type="doi">10.31857/S2686953524020032</article-id><article-id pub-id-type="edn">zsajrl</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CHEMISTRY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ХИМИЯ</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">Perovskite-like limited solid solution in the BaO–Y<sub>2</sub>O<sub>3</sub>–CuO–MoO<sub>3</sub> system</article-title><trans-title-group xml:lang="ru"><trans-title>Перовскитоподобный ограниченный твердый раствор в системе BaO–Y<sub>2</sub>O<sub>3</sub>–CuO–MoO<sub>3</sub></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Smirnova</surname><given-names>M. N.</given-names></name><name xml:lang="ru"><surname>Смирнова</surname><given-names>М. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>smirnova_macha1989@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kopeva</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Копьева</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>smirnova_macha1989@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nipan</surname><given-names>G. D.</given-names></name><name xml:lang="ru"><surname>Нипан</surname><given-names>Г. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>smirnova_macha1989@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nikiforova</surname><given-names>G. E.</given-names></name><name xml:lang="ru"><surname>Никифорова</surname><given-names>Г. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>smirnova_macha1989@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yapryntsev</surname><given-names>A. D.</given-names></name><name xml:lang="ru"><surname>Япрынцев</surname><given-names>А. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>smirnova_macha1989@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Archipenko</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Архипенко</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>smirnova_macha1989@mail.ru</email><xref ref-type="aff" rid="aff1"/></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</institution></aff><aff><institution xml:lang="ru">Институт общей и неорганической химии им. Н.С. Курнакова Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-04-15" publication-format="electronic"><day>15</day><month>04</month><year>2024</year></pub-date><volume>515</volume><issue>1</issue><issue-title xml:lang="ru"/><fpage>30</fpage><lpage>35</lpage><history><date date-type="received" iso-8601-date="2025-02-02"><day>02</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</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://journals.eco-vector.com/2686-9535/article/view/651912">https://journals.eco-vector.com/2686-9535/article/view/651912</self-uri><abstract xml:lang="en"><p>A new phase Ba<sub>2</sub>(Y,Cu,Mo)<sub>2</sub>O<sub>6</sub> with the cubic perovskite structure <italic>Fm-3m</italic> has been obtained in the BaO–CuO–Y<sub>2</sub>O<sub>3</sub>–MoO<sub>3</sub> quasiquaternary system, and the possibility of coexistence of two limited solid solutions with cubic structures <italic>Fm-3m</italic> and<italic> F-43m</italic> has been established. The samples were synthesized by gel combustion followed by calcination at 1000°C and cooling in the inertial thermal regime. The studies were carried out by X-ray phase analysis, X-ray fluorescence spectrometry, infrared spectroscopy, and diffuse reflectance spectroscopy.</p></abstract><trans-abstract xml:lang="ru"><p>В квазичетверной системе BaO–CuO–Y<sub>2</sub>O<sub>3</sub>–MoO<sub>3</sub> получена новая фаза Ba<sub>2</sub>(Y,Cu,Mo)<sub>2</sub>O<sub>6</sub> со структурой кубического перовскита <italic>Fm-3m</italic> и установлена возможность совместного существования двух ограниченных твердых растворов с кубическими структурами <italic>Fm-3m</italic> и <italic>F-43m</italic>. Образцы синтезировали методом сжигания геля с последующим прокаливанием при 1000<sup>o</sup>C и охлаждением в инерционно-термическом режиме. Исследования проводили методами рентгенофазового анализа, рентгенофлуоресцентной спектрометрии, инфракрасной спектроскопии и спектроскопии диффузного отражения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>multicomponent oxide systems</kwd><kwd>phase states</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>многокомпонентные оксидные системы</kwd><kwd>фазовые состояния</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Gupta S. Introduction of ferroelectric and related materials. In: Ferroelectric materials for energy harvesting and storage. 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