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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">catal</journal-id><journal-title-group><journal-title xml:lang="ru">Катализ в промышленности</journal-title><trans-title-group xml:lang="en"><trans-title>Kataliz v promyshlennosti</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1816-0387</issn><issn pub-type="epub">2413-6476</issn><publisher><publisher-name>LLC "KALVIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18412/1816-0387-2025-6-12-20</article-id><article-id custom-type="elpub" pub-id-type="custom">catal-1208</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>ОБЩИЕ ВОПРОСЫ КАТАЛИЗА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>GENERAL PROBLEMS OF CATALYSIS</subject></subj-group></article-categories><title-group><article-title>Приготовление высокодисперсных катализаторов Ni/γ-Al2O3 путем термической обработки нанесенного основного нитрата никеля водородсодержащим газом</article-title><trans-title-group xml:lang="en"><trans-title>Preparation of highly dispersed Ni/ Al2O3 catalysts by heat treatment of supported basic nickel nitrate with hydrogen-containing gas</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>Нуждин</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Nuzhdin</surname><given-names>A. L.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Бухтиярова</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bukhtiyarova</surname><given-names>M. V.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Пахарукова</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Pakharukova</surname><given-names>V. P.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Славинская</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Slavinskaya</surname><given-names>E. M.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Шаманаев</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shamanaev</surname><given-names>I. V.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Бухтиярова</surname><given-names>Г. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Bukhtiyarova</surname><given-names>G. A.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт катализа им. Г.К. Борескова СО РАН, Новосибирск</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Boreskov Institute of Catalysis SB RAS, Novosibirsk</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>05</day><month>12</month><year>2025</year></pub-date><volume>25</volume><issue>6</issue><fpage>12</fpage><lpage>20</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; LLC "KALVIS", 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">LLC "KALVIS"</copyright-holder><copyright-holder xml:lang="en">LLC "KALVIS"</copyright-holder><license xlink:href="https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.catalysis-kalvis.ru/jour/article/view/1208">https://www.catalysis-kalvis.ru/jour/article/view/1208</self-uri><abstract><p>Исследован процесс приготовления высококонцентрированного катализатора 18%Ni/Al2O3 методом пропитки γ-Al2O3 раствором нитрата никеля с последующей термообработкой в водородсодержащей атмосфере. Термическая обработка нанесенного Ni3(ОН)4(NO3)2, который главным образом образуется после прокаливания пропитанного и высушенного носителя при 200 °C, в среде H2 (содержание Н2 ≥ 20 %) при 230 °C способствует формированию фазы высокодисперсного NiO. При этом полностью удаляются нитрат-ионы и не происходит укрупнения частиц активного компонента по сравнению с фазой Ni3(ОН)4(NO3)2. Уменьшение концентрации Н2 в газовой смеси снижает скорость разложения нитратов и приводит к укрупнению частиц активного компонента при содержании Н2 ≤ 5 %. Выдвинуто предположение о роли водорода в процессе прокаливания предшественника катализатора.</p></abstract><trans-abstract xml:lang="en"><p>The process of preparing a highly concentrated Ni/Al2O3 catalyst by impregnating γ-Al2O3 with a nickel nitrate solution followed by calcination in a hydrogen-containing atmosphere was studied. Calcination of the supported Ni3(OH)4(NO3)2, which is formed during the heat treatment of the impregnated carrier at 200 °C, in an H2 environment (H2 content ≥20%) at 230 °C promotes the formation of a phase of highly dispersed NiO. In this case, nitrate ions are completely removed and there is no enlargement of the active component particles compared to the initial Ni3(ОН)4(NO3)2 phase. A decrease in the H2 concentration in the gas mixture reduces the rate of nitrate decomposition and leads to an agglomeration of the active component particles at an H2 content of ≤5%. An assumption is made about the role of hydrogen in the process of calcining the catalyst precursor.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>высокодисперсный катализатор</kwd><kwd>приготовление катализатора</kwd><kwd>нитрат никеля</kwd><kwd>молекулярный водород</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Ni/Al2O3</kwd><kwd>highly dispersed catalyst</kwd><kwd>catalyst preparation</kwd><kwd>nickel nitrate</kwd><kwd>molecular hydrogen</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Министерства науки и высшего образования РФ в рамках государственного задания Института катализа СО РАН (FWUR-2024-0035). Исследования физико-химических свойств образцов выполнены с использованием оборудования Центра коллективного пользования «Национальный центр исследования катализаторов».</funding-statement><funding-statement xml:lang="en">This work was supported by the Ministry of Science and Higher Education of the Russian Federation under a state assignment to the Institute of Catalysis SB RAS (FWUR-2024-0035). The physicochemical properties of the samples were studied using equipment from the National Catalyst Research Center, a shared-use facility.</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">Bartholomew C.H., Farrauto R.J. // J. Сatal. 1976. V. 45. № 1. P. 41—53. https://doi.org/10.1016/0021-9517(76)90054-3</mixed-citation><mixed-citation xml:lang="en">Bartholomew C.H., Farrauto R.J. // J. Сatal. 1976. V. 45. № 1. 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