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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">cpomaem</journal-id><journal-title-group><journal-title xml:lang="ru">Коррозия: защита материалов и методы исследований</journal-title><trans-title-group xml:lang="en"><trans-title>Title in english</trans-title></trans-title-group></journal-title-group><publisher><publisher-name>ИФХЭ РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.61852/2949-3412-2026-4-2-142-153</article-id><article-id custom-type="elpub" pub-id-type="custom">cpomaem-153</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Адсорбция и защитные свойства тридеканоата натрия на сплаве МНЖ5-1 из водных хлоридных растворов</article-title><trans-title-group xml:lang="en"><trans-title>Adsorption and Protective Properties of Sodium Tridecanoate on MNZh5-1 Alloy from Aqueous Chloride Solutions</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>Кузенков</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzenkov</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119071, г. Москва, Ленинский проспект, д. 31, корп. 4</p></bio><bio xml:lang="en"><p>Leninsky prospect, 31-4, 119071 Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Агафонкина</surname><given-names>М. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Agafonkina</surname><given-names>M. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119071, г. Москва, Ленинский проспект, д. 31, корп. 4</p></bio><bio xml:lang="en"><p>Leninsky prospect, 31-4, 119071 Moscow</p></bio><email xlink:type="simple">agafonkina@inbox.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>Андреева</surname><given-names>Н. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Andreeva</surname><given-names>N. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119071, г. Москва, Ленинский проспект, д. 31, корп. 4</p></bio><bio xml:lang="en"><p>Leninsky prospect, 31-4, 119071 Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение науки Институт физической химии и электрохимии им. А.Н. Фрумкина Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>21</day><month>06</month><year>2026</year></pub-date><volume>0</volume><issue>2</issue><fpage>142</fpage><lpage>153</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кузенков Ю.А., Агафонкина М.О., Андреева Н.П., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Кузенков Ю.А., Агафонкина М.О., Андреева Н.П.</copyright-holder><copyright-holder xml:lang="en">Kuzenkov Y.A., Agafonkina M.O., Andreeva N.P.</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://www.cpmrm.ru/jour/article/view/153">https://www.cpmrm.ru/jour/article/view/153</self-uri><abstract><p>В работе адсорбционными, поляризационными и гравиметрическими методами изучен тридеканоат натрия – NaC13 на поверхности медного сплава в нейтральных хлоридных растворах. Эллипсометрические измерения показали высокую адсорбционную способность аниона NaC13 на окисленной поверхности сплава при Е =0,0 В. Расчет полученной изотермы по полному уравнению Темкина дает значение свободной энергии адсорбции 76 кДж/моль. Эта величина свидетельствует о хемосорбции NaC13 на металле. Поляризационные измерения показали, что экспозиция МНЖ5-1 в ингибированном растворе в течение 18 час сдвигает потенциал локальной депассивации МНЖ5-1 в положительную сторону сильнее, чем при отсутствии экспозиции. Из результатов коррозионных испытаний в хлоридных растворах видно, что при 6,5 ммоль/л NaC13 наблюдается полная защита сплава в 0,01 моль/л водном растворе NaCl, а в 0,001 моль/л растворе NaCl полная защита происходит при 0,95 ммоль/л NaC13. Предварительная экспозиция сплава в ингибированном растворе снижает концентрацию, необходимую для полной защиты сплава: до 4,5 ммоль/л NaC13 в 0,01 моль/л водном растворе NaCl и до 0,65 ммоль/л в 0,001 моль/л растворе NaCl.</p></abstract><trans-abstract xml:lang="en"><p>In this study, sodium tridecanoate (NaC13) on the surface of a copper alloy in neutral chloride solutions was studied using adsorption, polarization, and gravimetric methods. Ellipsometric measurements revealed the initial adsorption capacity of the NaCl3 anion on the oxidized alloy surface at E=0.0 V. Calculation of the obtained isotherms using the complete Temkin equation yields an adsorption free energy of 76 kJ/mol. This value indicates chemisorption of the NaC13 anion on the metal. Polarization measurements show that exposure of MNZh5-1 to an inhibited solution for 18 hours increases the local depassivation potential of MNZh5-1 positively, more strongly than in the absence of exposure. Corrosion tests in chloride solutions show that complete protection of the alloy in a 0.01 mol/L NaCl aqueous solution is observed at 6.5 mmol/L NaCl, while in a 0.001 mol/L NaCl solution, complete protection occurs at 0.95 mmol/L NaCl. Preliminary exposure of the alloy to an inhibited solution at a surface concentration required for complete protection of the alloy: up to 4.5 mmol/L NaCl in a 0.01 mol/L aqueous NaCl solution and up to 0.65 mmol/L in a 0.001 mol/L NaCl solution.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>тридеканоат натрия</kwd><kwd>медный сплав</kwd><kwd>эллипсометрия</kwd><kwd>изотерма Темкина</kwd><kwd>пассивность</kwd><kwd>степень защиты</kwd><kwd>экспозиция</kwd><kwd>защитный эффект.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sodium tridecanoate</kwd><kwd>copper alloy</kwd><kwd>ellipsometry</kwd><kwd>Temkin isotherm</kwd><kwd>passivity</kwd><kwd>degree of protection</kwd><kwd>exposure</kwd><kwd>protection effect.</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках Госзадания при финансовой поддержке Минобрнауки России «Развитие физико-химических основ процессов коррозии металлов и сплавов и методов их защиты» (регистрационный номер 125012200581-1)</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">А.И. 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