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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 pub-id-type="doi">10.15518/isjaee.2018.01-03.049-056</article-id><article-id custom-type="elpub" pub-id-type="custom">alternative-1264</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>ГИДРИРОВАНИЕ СПЛАВА Ti80Fe20</article-title><trans-title-group xml:lang="en"><trans-title>HYDROGENATION OF Ti80Fe20 ALLOY</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>Фокин</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Fokin</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, ст. науч. сотрудник</p></bio><bio xml:lang="en"><p>Ph.D. in Chemistry, Senior Researcher</p></bio><email xlink:type="simple">fvn@icp.ac.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>Фокина</surname><given-names>Э. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Fokina</surname><given-names>E. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>науч. сотрудник</p></bio><bio xml:lang="en"><p>Researcher</p></bio><email xlink:type="simple">fvn@icp.ac.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>Тарасов</surname><given-names>Б. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Tarasov</surname><given-names>B. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, зав. лаб. ИПХФ РАН</p></bio><bio xml:lang="en"><p>Ph.D. in Chemistry, Head of Laboratory</p></bio><email xlink:type="simple">fvn@icp.ac.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт проблем химической физики РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Problems of Chemical Physics of RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>12</day><month>03</month><year>2018</year></pub-date><volume>0</volume><issue>1-3</issue><fpage>49</fpage><lpage>56</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Международный издательский дом научной периодики "Спейс, 2018</copyright-statement><copyright-year>2018</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/1264">https://www.isjaee.com/jour/article/view/1264</self-uri><abstract><p>Исследовано взаимодействие сплава состава 80 ат. % Ti + 20 ат. % Fe (Ti80Fe20) с аммиаком под давлением 0,6÷0,8 МПа в интервале температур 100 ÷ 500 ºC: определены фазовые превращения в системе Ti80Fe20–NH3,  установлен состав продуктов, найдены условия образования гидридных и нитридных фаз, определена температура образования гидридных фаз с максимально возможным содержанием водорода для использования сплава в металлогидридных аккумуляторах водорода. Показана зависимость направления реакции сплава с аммиаком, проходящей в присутствии NH4Cl (10 мас. % от количества сплава) как активатора, от температуры. Одним из продуктов реакции, проведенной при 100 ºC, является гидридная фаза состава Ti4FeH8,3, которая при дальнейшем небольшом повышении температуры реакции разлагается на гидридные фазы титана и интерметаллического соединения TiFe. При температуре взаимодействия 200 ºC и выше происходит внедрение в металлическую решетку гидрида интерметаллида TiFeH-2 незначительных количеств азота с образованием фазы TiFeH-2Nx, а при температуре 350 ºC и выше в составе продуктов реакции появляется нитрид титана TiN. Взаимодействие сплава с аммиаком при 500 ºC приводит к образованию смеси нитрида титана и металлического α-Fe. Отмечено резкое увеличение удельной поверхности продуктов реакции при повышении температуры процесса от 250 ºC до 400 ºC (от 0,2 м2/г до 46,4 м2/г), что свидетельствует об образовании смеси высокодисперсных порошков. Металлогидридный аккумулятор водорода на основе исследованного сплава может работать в интервале температур от комнатной до 600 ºC и выделять до 3 мас. % водорода.</p></abstract><trans-abstract xml:lang="en"><p>We investigated the interaction of alloy of composition 80 at. % of Ti + 20 at. % of Fe (Ti80Fe20) with ammonia under pressure of 0.6 ÷ 0.8 MPa at the temperatures 100 ÷ 500 ºC: the phase transformations in the Ti80Fe20–NH3 system were defined; the composition of products was established; the formation conditions of the hydride and nitride phases were found; the formation temperatures of the hydride phases with the greatest possible content of hydrogen for use of alloy in the metal hydride accumulators of hydrogen were determined. The study shows the dependence of the reaction direction of alloy with ammonia, taking place in presence of NH4Cl (the 10 wt. % of alloy quantity) as activator, on temperature. One of the products of the reaction, which is carried out at 100 ºC, is the hydride phase of composition Ti4FeH8.3. With further a slight increase in temperature of reaction, this phase decomposes on hydride phases of the titanium and of the intermetallic compound TiFe. At interaction temperature of 200 ºC and above, insignificant amount of nitrogen is introduced into a metal lattice of hydride of an intermetallide of TiFeH-2 with formation of the phase TiFeH-2Nx. At temperature of 350 ºC and above, the titanium nitride TiN appears as a part of reaction product. The interaction of alloy and ammonia at 500 ºC leads to mixture of titanium nitride and metallic - Fe. The sharp increase in a specific surface area of reaction products at increase in process temperature from 250 ºC to 400 ºC (from 0.2 m 2 /g to 46.4 m2 /g) is shown to demonstrate the formation of mixture of high-disperse powders. The metal hydride accumulator of hydrogen on the basis of the studied alloy can work in a temperature range of room temperature to 600 ºC and allocate up to 3 wt. % of hydrogen.</p><p> </p></trans-abstract><kwd-group xml:lang="ru"><kwd>водород</kwd><kwd>аммиак</kwd><kwd>сплав</kwd><kwd>интерметаллическое соединение</kwd><kwd>гидрирование</kwd><kwd>гидридная фаза</kwd><kwd>гидроазотиро-вание</kwd><kwd>металлогидридный аккумулятор водорода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hydrogen</kwd><kwd>ammonia</kwd><kwd>alloy</kwd><kwd>intermetallic compound</kwd><kwd>hydrogenation</kwd><kwd>hydride phase</kwd><kwd>hydronitriding</kwd><kwd>metal hydride accumulator of hydrogen</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках госзадания № 0089-2014- 0030 и при поддержке РФФИ (№ 16-29-06197_офи_м)</funding-statement><funding-statement xml:lang="en">The work was carried out within the frameworks of the state task No. 0089-2014-0030 and with the support of the Russian Foundation for Basic Research (No. 16-29- 06197_ofi_m)</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">Reilly, J.J. 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