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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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vestich</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия химических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Chemical Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8331</issn><issn pub-type="epub">2524-2342</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8331-2021-57-3-270-277</article-id><article-id custom-type="elpub" pub-id-type="custom">vestich-662</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>ФИЗИЧЕСКАЯ ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICAL CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Кислотно-основные свойства поверхности оксида хрома(III)</article-title><trans-title-group xml:lang="en"><trans-title>Acid-basic properties of chromium(III) oxide surface</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>Шапорова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shaporova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шапорова Елена Анатольевна – канд. хим. наук, доцент</p><p>ул. Уборевича, 77, 220096, Минск</p></bio><bio xml:lang="en"><p>Alena A. Shaparava – Ph. D. (Chemistry), Associate Professor</p><p>77, Uborevich str., 220096, Minsk </p></bio><email xlink:type="simple">elena.telushenko@gmail.com</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>Жукова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhukova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жукова Анна Анатольевна – канд. техн. наук, проректор по науч. работе</p><p>ул. Уборевича, 77, 220096, Минск</p></bio><bio xml:lang="en"><p>Anna A. Zhukova – Ph. D. (Engineering), vice-rector for scientific work of the educational institution </p><p>77, Uborevich str., 220096, Minsk </p></bio><email xlink:type="simple">hannazhukova@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>Баев</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Baev</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Баев Алексей Кузьмич – член-корреспондент РАЕН, д-р хим. наук, профессор, соросовский профессор</p><p>ул. Уборевича, 77, 220096, Минск</p></bio><bio xml:lang="en"><p>Alexey K. Baev – Corresponding Member of the Russian Academy of Natural Sciences, D. Sc. (Chemistry), Professor, Soros Professor </p><p>77, Uborevich str., 220096, Minsk </p></bio><email xlink:type="simple">alexeibaev@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>Сидоренко</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Sidorenko</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сидоренко Александр Юрьевич – канд. хим. наук, зав. лаб. </p><p>ул. Ф. Скорины, 36, 220141, Минск</p></bio><bio xml:lang="en"><p>Alexander Yu. Sidorenko – Ph. D. (Chemistry), Head of the Laboratory</p><p>36, F. Skaryna str., 220141, Minsk </p></bio><email xlink:type="simple">camphene@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусская государственная академия авиации</institution></aff><aff xml:lang="en"><institution>Belarusian State Academy of Aviation</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт химии новых материалов Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>03</day><month>09</month><year>2021</year></pub-date><volume>57</volume><issue>3</issue><fpage>270</fpage><lpage>277</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шапорова Е.А., Жукова А.А., Баев А.К., Сидоренко А.Ю., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Шапорова Е.А., Жукова А.А., Баев А.К., Сидоренко А.Ю.</copyright-holder><copyright-holder xml:lang="en">Shaporova E.A., Zhukova A.A., Baev A.K., Sidorenko A.Y.</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://vestichem.belnauka.by/jour/article/view/662">https://vestichem.belnauka.by/jour/article/view/662</self-uri><abstract><p>Проведено исследование природы и количества кислотно-основных центров на поверхности оксида хрома(III), полученного осаждением из водного нитратного раствора. Определено, что основной вклад в кислотность образцов вносят основные центры Льюиса, присутствуют также различные по кислотности центры Бренстеда. Проведен анализ структурных особенностей поверхности оксидов хрома, цинка и двойных систем Cr(III)–Zn(II) по результатам рентгенофазового анализа оксидов и термолиза соответствующих гидроксидов. На основании этого прогнозируется возможность получения наноразмерных катализаторов на основе оксидно-гидроксидных систем хрома с рядом 3d-металлов, получаемых в процессе полиядерного гидроксокомплексообразования.</p></abstract><trans-abstract xml:lang="en"><p>The article is devoted to the study of the nature and number of acid-base centers on the surface of chromium(III) oxide obtained by precipitation from an aqueous nitrate solution. The curve of the distribution of the number of acidbase centers of the samples is plotted depending on the indicator of the ionization constant of indicators. It was determined that the main Lewis centers make the main contribution to the acidity of the samples; there are also Bronsted centers of different acidity. A comparative analysis of the structural features of the surface of oxides of chromium, zinc and binary systems Cr (III)–Zn (II) was carried out according to the results of X-ray phase analysis of oxides and thermolysis of the corresponding hydroxides. Based on this, the possibility of obtaining nanosized catalysts based on oxide-hydroxide systems of chromium with a number of 3d-metals obtained in the process of polynuclear hydroxocomplexation is predicted.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>оксид хрома(III)</kwd><kwd>кислотно-основные характеристики поверхности</kwd><kwd>активные центры Бренстеда и Льюиса</kwd><kwd>индикаторный метод</kwd><kwd>наноразмерные катализаторы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chromium(III) oxide</kwd><kwd>acid-base characteristics of the surface</kwd><kwd>active Bronsted and Lewis centers</kwd><kwd>indicator method</kwd><kwd>nanoscale catalysts</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Назаров, Т. Э. Развитие катализаторов гидрокрекинга / Т. Э. Назаров, Л. В. 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