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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 custom-type="elpub" pub-id-type="custom">najo-1165</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="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Synthesis of aqueous sols of nanocrystalline ceria doped with gadolinia</article-title><trans-title-group xml:lang="ru"><trans-title>Синтез водных золей нанокристаллического диоксида церия, допированного гадолинием</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гасымова</surname><given-names>Г. А,</given-names></name><name name-style="western" xml:lang="en"><surname>Gasymova</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>PhD student</p></bio><email xlink:type="simple">gasymovaga@gmail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванова</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Researcher, PhD</p></bio><email xlink:type="simple">runetta05@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баранчиков</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Baranchikov</surname><given-names>A. Ye.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p> Senior Researcher, PhD</p></bio><email xlink:type="simple">a.baranchikov@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щербаков</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Shcherbakov</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="en"><p>Key Engineer, PhD</p></bio><email xlink:type="simple">carotene@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванов</surname><given-names>В. К,</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>V. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Key Researcher, PhD</p></bio><email xlink:type="simple">van@igic.ras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Третьяков</surname><given-names>Ю. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Tretyakov</surname><given-names>Yu. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Dean of Department of Materials Sciences, Academician of RAS, D.Sc.</p></bio><email xlink:type="simple">tret@igic.ras.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт общей и неорганической химии имени Н. С. Курнакова РАН</institution></aff><aff xml:lang="en"><institution>Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт микробиологии и вирусологии НАН Украины</institution></aff><aff xml:lang="en"><institution>Institute of Microbiology and Virology of Ukrainian National Academy of Sciences</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт общей и неорганической химии имени Н. С. Курнакова РАН; Московский государственный университет им. М. В. Ломоносова</institution></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2011</year></pub-date><pub-date pub-type="epub"><day>19</day><month>08</month><year>2025</year></pub-date><volume>2</volume><issue>3</issue><fpage>113</fpage><lpage>120</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Gasymova G.A., Ivanova O.S., Baranchikov A.Y., Shcherbakov A.B., Ivanov V.K., Tretyakov Y.D., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Гасымова Г.А., Иванова О.С., Баранчиков А.Е., Щербаков А.Б., Иванов В.К., Третьяков Ю.Д.</copyright-holder><copyright-holder xml:lang="en">Gasymova G.A., Ivanova O.S., Baranchikov A.Y., Shcherbakov A.B., Ivanov V.K., Tretyakov Y.D.</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/1165">https://nanojournal.ifmo.ru/jour/article/view/1165</self-uri><abstract><p>Novel method of synthesis of Ce1‑xGdxO2‑d (x = 0–0.2) aqueous sols for magnetic resonance tomography applications was proposed. Detailed physico-chemical study of sols was performed using electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, UV-Vis spectroscopy and dynamic light scattering. It was shown that the lattice constant of as-prepared solid solutions obeys Vegard’s law. The particle size in sols prepared by combination of anionite and hydrothermal-microwave treatments is substantially smaller than the size of the particles prepared by conventional hydrothermal treatment.</p></abstract><trans-abstract xml:lang="ru"><p>Предложен метод получения водных золей нанодисперсных твердых растворов Ce1−𝑥Gd𝑥O2−𝛿 (𝑥 = 0–0.2), перспективных для применения в магнито-резонансной томографии, и проведено их комплексное физикохимическое исследование с применением методов электронной микроскопии, рентгеноспектрального микроанализа, рентгеновской дифракции, УФ-видимой спектроскопии и динамического светорассеяния. Показано, что параметр кристаллической ячейки образцов Ce1−𝑥Gd𝑥O2−𝛿 линейным образом зависит от содержания допанта в соответствии с законом Вегарда, что подтверждает факт образования твердых растворов. Установлено, что размеры наночастиц в золях, полученных сочетанием анионитной и гидротермально-микроволновой обработки, существенно меньше размеров частиц, синтезируемых обычным гидротермальным методом.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>оксид церия</kwd><kwd>оксид гадолиния</kwd><kwd>твердые растворы</kwd><kwd>гидротермально-микроволновая обработка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ceria</kwd><kwd>gadolinia</kwd><kwd>solid solution</kwd><kwd>hydrothermal microwave treatment</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке РФФИ (проект 11-03-00828) и гранта Президента РФ для молодых ученых (проект МК-4829.2010.3).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Елисеев А.А., Лукашин А.В. Функциональные наноматериалы / Под ред. Ю.Д. 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