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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">Russian Journal of Inorganic Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Inorganic Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал неорганической химии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0044-457X</issn><issn publication-format="electronic">3034-560X</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">665291</article-id><article-id pub-id-type="doi">10.31857/S0044457X22600931</article-id><article-id pub-id-type="edn">JBIXIM</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>НЕОРГАНИЧЕСКИЕ МАТЕРИАЛЫ И НАНОМАТЕРИАЛЫ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Sinthesis and Properties of Hard Carbon Materials Made of Molybdenum-Doped Viscose Fiber for Negative Electrodes of Sodium-Ion Batteries</article-title><trans-title-group xml:lang="ru"><trans-title>Синтез и свойства твердоуглеродных материалов из вискозного волокна, допированного молибденом, для отрицательных электродов натрий-ионных аккумуляторов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zheleznov</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Железнов</surname><given-names>В. В.</given-names></name></name-alternatives><email>ttt@ich.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Saenko</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Саенко</surname><given-names>Н. С.</given-names></name></name-alternatives><email>ttt@ich.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Maiorov</surname><given-names>V. Yu.</given-names></name><name xml:lang="ru"><surname>Майоров</surname><given-names>В. Ю.</given-names></name></name-alternatives><email>ttt@ich.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ustinov</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Устинов</surname><given-names>А. Ю.</given-names></name></name-alternatives><email>ttt@ich.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sokol’nitskaya</surname><given-names>T. A.</given-names></name><name xml:lang="ru"><surname>Сокольницкая</surname><given-names>Т. А.</given-names></name></name-alternatives><email>ttt@ich.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuryavyi</surname><given-names>V. G.</given-names></name><name xml:lang="ru"><surname>Курявый</surname><given-names>В. Г.</given-names></name></name-alternatives><email>ttt@ich.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shlik</surname><given-names>D. Kh.</given-names></name><name xml:lang="ru"><surname>Шлык</surname><given-names>Д. Х.</given-names></name></name-alternatives><email>ttt@ich.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sokolov</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Соколов</surname><given-names>А. А.</given-names></name></name-alternatives><email>ttt@ich.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Opra</surname><given-names>D. P.</given-names></name><name xml:lang="ru"><surname>Опра</surname><given-names>Д. П.</given-names></name></name-alternatives><email>ttt@ich.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт химии ДВО РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-03-01" publication-format="electronic"><day>01</day><month>03</month><year>2023</year></pub-date><volume>68</volume><issue>3</issue><fpage>373</fpage><lpage>382</lpage><history><date date-type="received" iso-8601-date="2025-02-26"><day>26</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, В.В. Железнов, Н.С. Саенко, В.Ю. Майоров, А.Ю. Устинов, Т.А. Сокольницкая, В.Г. Курявый, Д.Х. Шлык, А.А. Соколов, Д.П. Опра</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, В.В. Железнов, Н.С. Саенко, В.Ю. Майоров, А.Ю. Устинов, Т.А. Сокольницкая, В.Г. Курявый, Д.Х. Шлык, А.А. Соколов, Д.П. Опра</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">В.В. Железнов, Н.С. Саенко, В.Ю. Майоров, А.Ю. Устинов, Т.А. Сокольницкая, В.Г. Курявый, Д.Х. Шлык, А.А. Соколов, Д.П. Опра</copyright-holder><copyright-holder xml:lang="ru">В.В. Железнов, Н.С. Саенко, В.Ю. Майоров, А.Ю. Устинов, Т.А. Сокольницкая, В.Г. Курявый, Д.Х. Шлык, А.А. Соколов, Д.П. Опра</copyright-holder></permissions><self-uri xlink:href="https://transsyst.ru/0044-457X/article/view/665291">https://transsyst.ru/0044-457X/article/view/665291</self-uri><abstract xml:lang="en"><p>Herein, a method for the preparation of hard carbon via carbonization of chemically modified (molybdenum-doped) commercially available viscose fiber was developed. The effects of a molybdenum dopant on carbonization conditions were studied. The carbonization products retained the fibrous structure and flexibility. The structural features of the synthesized hard carbon materials were investigated, and their relationships to the carbonization temperature and the amount of the molybdenum dopant were analyzed. The texture of materials was studied, and correlations between the specific surface area and porosity, on the one hand, and the synthesis conditions, on the other, were discovered. The usefulness of the products as anode materials for sodium-ion batteries was evaluated. The electrochemical tests, together the extant relevant data, indicate that molybdenum induces the structural rearrangement of the carbon framework upon annealing, accompanied by the growth and ordering of graphite-like nanoclusters. The material prepared at 1050°C exhibited the best electrochemical performances among the synthesized products and the stable cyclability with a capacity of 290 (mA h)/g at a current density of 25 mA/g.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181324176160">Предложен метод синтеза твердого углерода путем карбонизации химически модифицированной (допированной молибденом) коммерчески доступной технической вискозной нити. Изучено влияние молибденсодержащей добавки на условия карбонизации. Отмечено, что продукты карбонизации сохраняют волокнистое строение и гибкость. Изучены структурные особенности синтезированных твердоуглеродных материалов, обнаружена их взаимосвязь с температурой карбонизации и содержанием вводимого молибденсодержащего допанта. Исследована текстура материалов, выявлена корреляция удельной площади поверхности и пористости с условиями синтеза. Рассмотрена возможность использования полученных продуктов в роли анодных материалов для натрий-ионных аккумуляторов. Сопоставление результатов электрохимических испытаний с известными данными свидетельствует об индуцированной молибденом под действием температуры структурной перестройке углеродного каркаса, сопровождающейся ростом и упорядочением графитоподобных нанокластеров. Материал, полученный при температуре 1050°С, показал наилучшие электрохимические характеристики и способность к устойчивому циклированию с емкостью 290 мА ч/г при 25 мА/г.</p></trans-abstract><kwd-group xml:lang="en"><kwd>hard carbon</kwd><kwd>viscose</kwd><kwd>heteroatomic doping</kwd><kwd>molybdenum</kwd><kwd>anode material</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>твердый углерод</kwd><kwd>вискоза</kwd><kwd>гетероатомное допирование</kwd><kwd>молибден</kwd><kwd>анодный материал</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Xie F., Xu Z., Guo Z. et al. // Prog. Energy. 2020. V. 2. № 4. P. 042002. https://doi.org/10.1088/2516-1083/aba5f5</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Ma J., Li Y., Grundish N.S. et al. // J. Phys. D: Appl. Phys. 2021. V. 54. № 18. 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