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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">alternative</journal-id><journal-title-group><journal-title xml:lang="ru">Альтернативная энергетика и экология (ISJAEE)</journal-title><trans-title-group xml:lang="en"><trans-title>Alternative Energy and Ecology (ISJAEE)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1608-8298</issn><publisher><publisher-name>Международный издательский дом научной периодики "Спейс</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">alternative-434</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>ВОДОРОДНАЯ ЭКОНОМИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>HYDROGEN ECONOMY</subject></subj-group></article-categories><title-group><article-title>Компьютерное моделирование активного слоя катода топливного элемента с полимерным электролитом: Учет процесса диффузии кислорода в зернах подложки</article-title><trans-title-group xml:lang="en"><trans-title>The computer modeling of active layer cathode of fuel cell with polymer electrolyte: the process of oxygen diffusion in support grain</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>Чирков</surname><given-names>Ю. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Chirkov</surname><given-names>Yu. G.</given-names></name></name-alternatives><email xlink:type="simple">olga.nedelina@gmail.com</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>Ростокин</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Rostokin</surname><given-names>V. I.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Учреждение Российской академии наук Институт физической химии и электрохимии им. А.Н. Фрумкина РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет (МИФИ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University (MEPhY)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>23</day><month>06</month><year>2016</year></pub-date><issue>6</issue><fpage>8</fpage><lpage>15</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Международный издательский дом научной периодики "Спейс, 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Международный издательский дом научной периодики "Спейс</copyright-holder><copyright-holder xml:lang="en">Международный издательский дом научной периодики "Спейс</copyright-holder><license xlink:href="https://www.isjaee.com/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.isjaee.com/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.isjaee.com/jour/article/view/434">https://www.isjaee.com/jour/article/view/434</self-uri><abstract><p>Проведено полное компьютерное моделирование активного слоя катода топливного элемента с полимерным электролитом. Моделировалась не только транспортная структура активного слоя, позволяющая доставлять электроны, протоны и молекулы кислорода для совершения электрохимического процесса восстановления кислорода в любом сечении активного слоя, но также моделировалась и структура зерен подложки (агломераты углеродных частиц, на поверхность которых нанесена платина). Рассчитаны поляризационные кривые активного слоя с учетом омических и диффузионных ограничений (подача протонов и кислорода), которые неизбежно возникают в зернах подложки. Изучено два состояния зерен подложки: их поры полностью свободны от воды и поры полностью затоплены водой. Продемонстрировано, что затопление пор зерен подложки способно привести к резкому снижению величин габаритных токов.</p></abstract><trans-abstract xml:lang="en"><p>This paper presents a computer simulation study of the active layer cathode of a fuel cell with polymer electrolyte. We simulate both (1) the transport structure of the active layer (which delivers electrons, protons, and oxygen molecules for the realization of the electrochemical oxygen reduction process in any part of the active layer) and (2) the structure of support grains (that is, agglomerates of carbon particles with supported platinum). Our calculations of the volt-ampere characteristics of the active layer take into account ohmic and diffusion limitations (the transport of protons and oxygen) that inevitably arise in support grains. We study two conditions of support grains: (a) with their pores entirely free of water, and (b) with their pores filled with water. The study demonstrates that filling support grains with water leads to a sharp decrease of overall current.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>катод топливного элемента с полимерным электролитом</kwd><kwd>активный слой</kwd><kwd>компьютерное моделирование</kwd><kwd>учет омических и диффузионных ограничений в зернах подложки</kwd><kwd>расчет габаритных токов катода</kwd><kwd>cathode of fuel cell with polymer electrolyte</kwd><kwd>active layer</kwd><kwd>computer simulation</kwd><kwd>ohmic and diffusion limitations in support grains</kwd><kwd>calculation of cathode overall currents</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">PEM fuel cell electrocatalysts and catalyst layers: fundamentals and applications / Ed. Zhang J. 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