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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2026-17-1-119-128</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-1461</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="en"><subject>CHEMISTRY AND MATERIALS SCIENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И НАУКА О МАТЕРИАЛАХ</subject></subj-group></article-categories><title-group><article-title>Interfacial Stabilization of Nafion Membrane with Graphene and PTFE: A Path to More Durable PEM Water Electrolyzers</article-title><trans-title-group xml:lang="ru"><trans-title>Межфазная стабилизация мембраны Nafion с помощью графена и ПТФЭ: путь к созданию более прочной полимерной электролитной мембраны для электролиза воды</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8482-7416</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Касцова</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kastsova</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="en"><p>Angelina G. Kastsova</p><p>26 Polytechnicheskaya, Saint Petersburg, 194021</p></bio><email xlink:type="simple">akastsova@mail.ioffe.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4519-0111</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глебова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Glebova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="en"><p>Nadezhda V. Glebova</p><p>26 Polytechnicheskaya, SaintPetersburg, 194021</p></bio><email xlink:type="simple">glebova@mail.ioffe.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6709-5559</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Краснова</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Krasnova</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Anna Krasnova</p><p>26 Polytechnicheskaya, Saint Petersburg, 194021</p></bio><email xlink:type="simple">krasnova@mail.ioffe.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-6320-2011</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пелагейкина</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Pelageikina</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="en"><p>Anna O. Pelageikina</p><p>26 Polytechnicheskaya, Saint Petersburg, 194021</p></bio><email xlink:type="simple">a.o.pelagejkina@mail.ioffe.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5417-7472</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Швидченко</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shvidchenko</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="en"><p>Alexander V. Shvidchenko</p><p>26 Polytechnicheskaya, Saint Petersburg, 194021</p></bio><email xlink:type="simple">avshvid@mail.ioffe.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9895-6822</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нечитайлов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nechitailov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Andrey A. Nechitailov</p><p>26 Polytechnicheskaya, Saint Petersburg, 194021</p></bio><email xlink:type="simple">aan.shuv@mail.ioffe.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Ioffe Institute, Department of Solid State Electronics</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>04</day><month>03</month><year>2026</year></pub-date><volume>17</volume><issue>1</issue><fpage>119</fpage><lpage>128</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Kastsova A.G., Glebova N.V., Krasnova A., Pelageikina A.O., Shvidchenko A.V., Nechitailov A.A., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Касцова А.Г., Глебова Н.В., Краснова А., Пелагейкина А.О., Швидченко А.В., Нечитайлов А.А.</copyright-holder><copyright-holder xml:lang="en">Kastsova A.G., Glebova N.V., Krasnova A., Pelageikina A.O., Shvidchenko A.V., Nechitailov A.A.</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://nanojournal.ifmo.ru/jour/article/view/1461">https://nanojournal.ifmo.ru/jour/article/view/1461</self-uri><abstract><p>Stability and durability of electrochemical energy conversion systems are significant issues. In this study, few-layer graphene and polytetrafluoroethylene were applied to both sides of the Nafion type membrane as barrier layers to increase the device's resistance to electrochemical exposure. Electrochemical performance was assessed in a two-electrode configuration: potentiostatic aging at 2.5 V and hydrogen crossover measurements. The characterization of materials functioning as barrier layers was conducted using scanning and transmission electron microscopy, laser correlation spectroscopy, and differential thermal analysis. It is shown that both components stabilize Nafion through interfacial interactions, resulting in a longer service life and reduced hydrogen crossover. While the reference sample showed increased crossover, the modified samples exhibited reductions of 50% and 33%. These findings underscore the potential of the studied materials in enhancing the stability of polymer electrolyte membrane water electrolyzers, contributing to the advancement of more durable and efficient systems for hydrogen energy applications.</p></abstract><trans-abstract xml:lang="ru"><p>Стабильность и долговечность электрохимических систем преобразования энергии являются важными проблемами. В данном исследовании изучались две стратегии стабилизации: 1) нанесение барьерного слоя из многослойного графена на обе стороны мембраны Nafion и 2) введение политетрафторэтилена непосредственно в каталитические слои. Электрохимические характеристики оценивались в двухэлектродной конфигурации: путем потенциостатического старения при 2,5 В и измерения кроссовера водорода. Характеристика материалов, выполняющих функции барьерных слоев, проводилась с использованием сканирующей и просвечивающей электронной микроскопии, лазерной корреляционной спектроскопии и дифференциального термического анализа. Показано, что оба компонента стабилизируют Nafion за счет межфазных взаимодействий, что приводит к увеличению срока службы и снижению кроссовера водорода. В то время как в контрольном образце наблюдалось увеличение кроссовера, в модифицированных образцах оно снизилось на 50% и 33%. Эти результаты подчеркивают потенциал изучаемых материалов для повышения стабильности электролизеров воды с полимерной электролитной мембраной, что способствует созданию более долговечных и эффективных систем для применения в водородной энергетике.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>графен</kwd><kwd>ПТФЭ</kwd><kwd>стабилизированный Nafion</kwd><kwd>мембранно-электродные блоки</kwd><kwd>электролизер</kwd></kwd-group><kwd-group xml:lang="en"><kwd>graphene</kwd><kwd>PTFE</kwd><kwd>stabilized Nafion</kwd><kwd>membrane-electrode assemblies</kwd><kwd>water electrolyzer</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This research was funded by RUSSIAN SCIENCE FOUNDATION, grant number 24-73-10176, https://rscf.ru/en/project/24-73-10176/ (accessed on 13 June 2025). 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