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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">Journal of Surface Investigation. X-Ray, Synchrotron and Neutron Techniques</journal-id><journal-title-group><journal-title xml:lang="en">Journal of Surface Investigation. X-Ray, Synchrotron and Neutron Techniques</journal-title><trans-title-group xml:lang="ru"><trans-title>Поверхность. Рентгеновские, синхротронные и нейтронные исследования</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1028-0960</issn><issn publication-format="electronic">3034-5731</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">698136</article-id><article-id pub-id-type="doi">10.7868/S3034573125050014</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</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">Features of Nanostructured <italic>M</italic><sub>x</sub>−Pt<sub>1−x</sub> (<italic>M</italic> = Fe, Co, Ni) Solid Solutions Obtained by Precursor Reduction in Aqua Solutions</article-title><trans-title-group xml:lang="ru"><trans-title>ОСОБЕННОСТИ НАНОСТРУКТУРИРОВАННЫХ ТВЕРДЫХ РАСТВОРОВ <italic>M</italic><sub>x</sub>−Pt<sub>1−x</sub> (<italic>M</italic> = Fe, Co, Ni), ПОЛУЧЕННЫХ ВОССТАНОВЛЕНИЕМ В РАСТВОРАХ ПРЕКУРСОРОВ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Popova</surname><given-names>A. N</given-names></name><name xml:lang="ru"><surname>Попова</surname><given-names>А. Н</given-names></name></name-alternatives><email>h991@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zakharov</surname><given-names>N. S</given-names></name><name xml:lang="ru"><surname>Захаров</surname><given-names>Н. С</given-names></name></name-alternatives><email>h991@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zakharov</surname><given-names>Yu. A</given-names></name><name xml:lang="ru"><surname>Захаров</surname><given-names>Ю. А</given-names></name></name-alternatives><email>h991@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Parshkova</surname><given-names>E. S</given-names></name><name xml:lang="ru"><surname>Паршкова</surname><given-names>Е. С</given-names></name></name-alternatives><email>h991@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tikhonova</surname><given-names>I. N</given-names></name><name xml:lang="ru"><surname>Тихонова</surname><given-names>И. Н</given-names></name></name-alternatives><email>h991@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pugachev</surname><given-names>V. M</given-names></name><name xml:lang="ru"><surname>Пугачев</surname><given-names>В. М</given-names></name></name-alternatives><email>h991@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Krasheninin</surname><given-names>V. I</given-names></name><name xml:lang="ru"><surname>Крашенинин</surname><given-names>В. И</given-names></name></name-alternatives><email>h991@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Federal Research Center for Coal and Coal Chemistry SB RAS</institution></aff><aff><institution xml:lang="ru">Федеральный исследовательский центр угля и углехимии СО РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-05-15" publication-format="electronic"><day>15</day><month>05</month><year>2025</year></pub-date><issue>5</issue><issue-title xml:lang="en">NO5 (2025)</issue-title><issue-title xml:lang="ru">№5 (2025)</issue-title><fpage>3</fpage><lpage>11</lpage><history><date date-type="received" iso-8601-date="2025-12-08"><day>08</day><month>12</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, Институт физики твердого тела РАН, 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">Институт физики твердого тела РАН, Российская академия наук</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2026-05-15"/></permissions><self-uri xlink:href="https://oncopathology.abvpress.ru/1028-0960/article/view/698136">https://oncopathology.abvpress.ru/1028-0960/article/view/698136</self-uri><abstract xml:lang="en"><p>It is shown that there was a preferential formation of nanocrystals of solid solutions M–Pt of face-centered cubic structure when co-reduction of metal precursors (<italic>M</italic><sup>2+</sup> (M = Fe, Co, Ni) and [PtCl<sub>6</sub>]<sup>2−</sup>) by alkaline hydrazine hydrate solution was. It was demonstrated by methods of elemental analysis, X-ray diffraction, and high-resolution transmission electron microscopy. Content of Fe and Co in the phase of solid solutions was ≈ 11.5 ± 0.5 and ≈ 16.9 ± 1 at. %, respectively. By comparing the results of high-resolution transmission electron microscopy, elemental analysis, X-ray phase analysis, and X-ray structural analysis, it was established that in the Fe—Pt and Co—Pt systems, in addition to the M—Pt solid solutions with a face-centered cubic structure revealed by X-ray diffraction methods, nanodispersed metallic phases, practically inaccessible for registration, are formed in the regions above and below the limiting Fe and Co contents. However, as for nanostructured Ni—Pt system, there was not upper limit of Ni content in the solid solutions of face-centered cubic structure, up to 40 at. %. Therefore, the phase compositions were represented by two types of face-centered cubic structures, i.e. pure Ni phase and solid solution phases, with Ni content of 10–12 and 40 at. %. The key points about the nature of these structure-phase features reviewed in the article.</p></abstract><trans-abstract xml:lang="ru"><p>В работе методами элементного, рентгенофазового, рентгеноструктурного анализа и с помощью просвечивающей электронной микроскопии высокого разрешения показано, что при совместном восстановлении прекурсоров металлов <italic>M</italic><sup>2+</sup> (<italic>M</italic> = Fe, Co, Ni) и [РtCl<sub>6</sub>]<sup>2−</sup> щелочным раствором гидразингидрата происходит преимущественное формирование нанокристаллов твердых растворов M−Pt с гранецентрированной кубической структурой с преимущественным (при синтезе) содержанием в фазе твердых растворов Fe ≈ 11.5 ± 0.5 ат. %, Co ≈ 16.9 ± 1 ат. %. Сопоставлением результатов просвечивающей электронной микроскопии высокого разрешения, элементного, рентгенофазового, рентгеноструктурного анализа установлено, что в системах Fe–Pt и Co−Pt, помимо выявленных рентгенодифракционными методами твердых растворов M−Pt с гранецентрированной кубической структурой, в областях выше и ниже предельных содержаний Fe, Co происходит образование нанодисперсных, практически недоступных для регистрации металлических фаз. В наноструктурированной же системе Ni−Pt верхнего предела содержания Ni в фазе твердых растворов с гранецентрированной кубической структурой не выявлено до 40 ат. %, так что фазовый состав представлен для твердых растворов с содержанием Ni 10−12 и 40 ат. % и для фазы чистого Ni с гранецентрированной кубической структурой. Изложены представления о природе этих структурно–фазовых особенностей.</p></trans-abstract><kwd-group xml:lang="en"><kwd>solid solutions</kwd><kwd>bimetallic systems</kwd><kwd>nanoparticles</kwd><kwd>phase compositions</kwd><kwd>transmission electron microscopy</kwd><kwd>X-ray phase analysis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>твердые растворы</kwd><kwd>биметаллические системы</kwd><kwd>наночастицы</kwd><kwd>фазовый состав</kwd><kwd>просвечивающая электронная микроскопия</kwd><kwd>рентгенофазовый анализ</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке Российского научного фонда, грант № 2313-00356, с использованием оборудования Центра коллективного пользования ФИЦ УУХ СО РАН.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Singamaneni S., Bliznyuk V.N., Binek C., Tsymbal E.Y. // J. Mater. Chem. 2011. V. 21. № 42. 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