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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">Russian Journal of General Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of General Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал общей химии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0044-460X</issn><issn publication-format="electronic">3034-5596</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">667114</article-id><article-id pub-id-type="doi">10.31857/S0044460X2302018X</article-id><article-id pub-id-type="edn">QCYZCN</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">Formation of Hydrated Titanium Dioxide on the Surface of Aqueous Solution of Titanium(III, IV) Salt under the Action of Ammonia Gas</article-title><trans-title-group xml:lang="ru"><trans-title>Образование гидратированного диоксида титана на поверхности водного раствора соли титана(III, IV) под действием газообразного аммиака</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gulina</surname><given-names>L. B</given-names></name><name xml:lang="ru"><surname>Гулина</surname><given-names>Л. Б</given-names></name></name-alternatives><email>l.gulina@spbu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Skvortsova</surname><given-names>I.</given-names></name><name xml:lang="ru"><surname>Скворцова</surname><given-names>И.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuklo</surname><given-names>L. I</given-names></name><name xml:lang="ru"><surname>Кукло</surname><given-names>Л. И</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">St. Petersburg State University</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский государственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-02-15" publication-format="electronic"><day>15</day><month>02</month><year>2023</year></pub-date><volume>93</volume><issue>2</issue><issue-title xml:lang="en">NO2 (2023)</issue-title><issue-title xml:lang="ru">№2 (2023)</issue-title><fpage>314</fpage><lpage>321</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, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Российская академия наук</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://transsyst.ru/0044-460X/article/view/667114">https://transsyst.ru/0044-460X/article/view/667114</self-uri><abstract xml:lang="en"><p>During the interaction at the phase boundary, the aqueous interface between the titanium salt solution and air (NH<sub>3</sub>) gives rise to TiO<sub>2 </sub>· n H<sub>2</sub>O films consisting of nanoparticles about 20 nm in size. The morphology of products synthesized on the surface of TiOSO<sub>4</sub>, TiCl<sub>3</sub>, Ti<sub>2</sub>(SO<sub>4</sub>)3 solutions was studied by optical and electron microscopy. Using X-ray spectral microanalysis and X-ray phase analysis, the composition and crystal structure of the synthesized compounds were established. The conditions for obtaining tubular TiO<sub>2 </sub>· n H<sub>2</sub>O structures with the morphology of microscrolls about 10 µm in diameter and 200 to 600 µm in length were found. Possible reactions for the formation of gradient films of hydrated titanium dioxide and a hypothesis to explain the reasons for their transformation into microscrolls are proposed.</p></abstract><trans-abstract xml:lang="ru"><p>При взаимодействии на границе раздела фаз водный раствор соли титана-воздух (NH<sub>3</sub>) образуются пленки TiO<sub>2 </sub>· n H<sub>2</sub>O, состоящие из наночастиц размером около 20 нм. Методами оптической и электронной микроскопии выполнено исследование морфологии продуктов, синтезированных на поверхности растворов TiOSO<sub>4</sub>, TiCl<sub>3</sub>, Ti<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>. С помощью рентгеноспектрального микроанализа и рентгенофазового анализа установлены состав и кристаллическое строение синтезированных соединений. Обнаружены условия получения тубулярных структур TiO<sub>2 </sub>· n H<sub>2</sub>O с морфологией микросвитков диаметром около 10 мкм и длиной от 200 до 600 мкм. Предложены возможные реакции образования градиентных пленок гидратированного диоксида титана и гипотеза для объяснения причин их трансформации в микросвитки.</p></trans-abstract><kwd-group xml:lang="en"><kwd>titanium dioxide</kwd><kwd>Liquid-gas interface</kwd><kwd>hydrolysis</kwd><kwd>oxidation</kwd><kwd>film</kwd><kwd>gradient</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>диоксид титана</kwd><kwd>граница раздела жидкость-газ</kwd><kwd>гидролиз</kwd><kwd>окисление</kwd><kwd>пленка</kwd><kwd>градиент</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Chen X., Mao S.S. // Chem. Rev. 2007. Vol. 107. N 7. P. 2891. doi 10.1021/cr0500535</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Carp O., Huisman C. L., Reller A. // Prog. Solid State Chem. 2004. Vol. 32. N 1-2. 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