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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="other" 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">651966</article-id><article-id pub-id-type="doi">10.31857/S2686953522600568</article-id><article-id pub-id-type="edn">YRJDEB</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CHEMICAL TECHNOLOGY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ХИМИЧЕСКАЯ ТЕХНОЛОГИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">REDOX NANOSTRUCTURING OF BIPOROUS NICKEL (II) SINTERED USING A SPACE HOLDER</article-title><trans-title-group xml:lang="ru"><trans-title>Редокс-наноструктурирование бипористого никеля (II), спеченного с использованием порообразователя</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gnedovets</surname><given-names>A. G.</given-names></name><name xml:lang="ru"><surname>Гнедовец</surname><given-names>А. Г.</given-names></name></name-alternatives><email>agg@imet.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zelenskii</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Зеленский</surname><given-names>В. А.</given-names></name></name-alternatives><email>agg@imet.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shustov</surname><given-names>V. S.</given-names></name><name xml:lang="ru"><surname>Шустов</surname><given-names>В. С.</given-names></name></name-alternatives><email>agg@imet.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Alymov</surname><given-names>M. I.</given-names></name><name xml:lang="ru"><surname>Алымов</surname><given-names>М. И.</given-names></name></name-alternatives><email>agg@imet.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт металлургии и материаловедения 
им. А.А. Байкова Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-07-01" publication-format="electronic"><day>01</day><month>07</month><year>2023</year></pub-date><volume>511</volume><issue>1</issue><fpage>47</fpage><lpage>53</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 ©; 2023, А.Г. Гнедовец, В.А. Зеленский, В.С. Шустов, М.И. Алымов</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, А.Г. Гнедовец, В.А. Зеленский, В.С. Шустов, М.И. Алымов</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">А.Г. Гнедовец, В.А. Зеленский, В.С. Шустов, М.И. Алымов</copyright-holder><copyright-holder xml:lang="ru">А.Г. Гнедовец, В.А. Зеленский, В.С. Шустов, М.И. Алымов</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/2686-9535/article/view/651966">https://journals.eco-vector.com/2686-9535/article/view/651966</self-uri><abstract xml:lang="en"><p id="idm45181324118080">Permeable metallic nickel and ceramic nickel-oxide materials with nanostructured surface and multilevel hierarchical porosity were created by cyclic redox post-treatment of biporous nickel (II) consolidated in the sintering-dissolution process. Additional levels of intraparticle porosity – Kirkendall pores and shrinkage nanopores – were formed during the stages of high-temperature oxidation in air and reduction in hydrogen, respectively.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181324117504">Проницаемые металлические никелевые и керамические никель-оксидные материалы с наноструктурированной поверхностью и многоуровневой иерархической пористостью впервые созданы при циклической редокс-постобработке бипористого никеля (II), консолидированного в процессе спекания-растворения. Дополнительные уровни внутричастичной пористости – поры Киркендалла и усадочные нанопоры формировались соответственно на стадиях высокотемпературного окисления на воздухе и восстановления в водороде.</p></trans-abstract><kwd-group xml:lang="en"><kwd>redox treatment</kwd><kwd>powders</kwd><kwd>sintering</kwd><kwd>nickel (II)</kwd><kwd>nickel oxide</kwd><kwd>hierarchical porosity</kwd><kwd>Kirkendall pores</kwd><kwd>nanopores</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>редокс-обработка</kwd><kwd>порошки</kwd><kwd>спекание</kwd><kwd>никель (II)</kwd><kwd>оксид никеля</kwd><kwd>иерархическая пористость</kwd><kwd>поры Киркендалла</kwd><kwd>нанопоры</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Kirillov V.A., Fedorova Z.A., Danilova M.M., Zaikov-skii   V.I., Kuzin N.A., Kuzmin V.A., Krieger T.A., Mescheryakov V.D. // Appl. Catal. A: General. 2011. V. 401. 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