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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.2017.28-30.054-068</article-id><article-id custom-type="elpub" pub-id-type="custom">alternative-1237</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>ОСОБЕННОСТИ СИНТЕЗА И ЭЛЕКТРОПРОВОДНОСТЬ ПЛОТНОЙ КЕРАМИКИ ПРОТОНПРОВОДЯЩИХ ОКСИДОВ La1-xSrxScO3-α</article-title><trans-title-group xml:lang="en"><trans-title>SPECIFICITY OF SYNTHESIS AND ELECTRICAL CONDUCTIVITY OF DENSITY CERAMIC OF La1-xSrxScO3-α PROTON CONDUCTING OXIDES</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0700-662X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузьмин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzmin</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, заведующий лабораторией, Институт высокотемпературной электрохимии УрО РАН</p><p>Reseacher ID (WoS): O-4057-2014</p><p>SPIN: 5450-2156</p><p>Author ID: 150-524</p><p> </p></bio><bio xml:lang="en"><p>Ph.D. in Chemistry, Head of the Laboratory, Institute of High-Temperature Electrochemistry, UB RAS</p><p>Reseacher ID (WoS): O-4057-2014</p><p>SPIN: 5450-2156</p><p>Author ID: 150-524</p></bio><email xlink:type="simple">stroevaanna@yandex.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>Строева</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Stroeva</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, старший научный сотрудник, Институт высокотемпературной электрохимии УрО РАН</p><p>Research ID: 169181</p><p>SPIN: 9453-1231</p></bio><bio xml:lang="en"><p>Ph.D. in Chemistry, Senior Researcher, Institute of High-Temperature Electrochemistry, UB RAS</p><p>Research ID: 169181</p><p>SPIN: 9453-1231</p></bio><email xlink:type="simple">stroevaanna@yandex.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>Горелов</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorelov</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, ведущий научный сотрудник</p></bio><bio xml:lang="en"><p>Ph.D. in Chemistry, Leading Researcher, Institute of High-Temperature Electrochemistry, UB RAS</p></bio><email xlink:type="simple">stroevaanna@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новикова</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikova</surname><given-names>Y. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, научный сотрудник, Институт высокотемпературной электрохимии УрО РАН</p></bio><bio xml:lang="en"><p>Ph.D. in Chemistry, Researcher, Institute of HighTemperature Electrochemistry, UB RAS</p></bio><email xlink:type="simple">stroevaanna@yandex.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>Лесничёва</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Lesnichyova</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер/аспирант, Институт высокотемпературной электрохимии УрО РАН</p></bio><bio xml:lang="en"><p>engineer / Ph.D. student, Institute of HighTemperature Electrochemistry, UB RAS</p></bio><email xlink:type="simple">stroevaanna@yandex.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>Фарленков</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Farlenkov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер/аспирант, Институт высокотемпературной электрохимии УрО РАН</p></bio><bio xml:lang="en"><p>engineer / Ph.D. student, Institute of HighTemperature Electrochemistry, UB RAS</p></bio><email xlink:type="simple">stroevaanna@yandex.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>Ходимчук</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khodimchuk</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер/аспирант, Институт высокотемпературной электрохимии УрО РАН</p></bio><bio xml:lang="en"><p>engineer/Ph.D. student, Institute of HighTemperature Electrochemistry, UB RAS</p></bio><email xlink:type="simple">stroevaanna@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт высокотемпературной электрохимии УрО РАН;&#13;
ФГАОУ ВПО Уральский федеральный университет им. первого Президента РФ Б.Н. Ельцина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of High-Temperature Electrochemistry, UB RAS;&#13;
Ural Federal University named after the first president of Russia B.N. Yeltsin</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт высокотемпературной электрохимии УрО РАН;</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of High-Temperature Electrochemistry, UB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>12</day><month>01</month><year>2018</year></pub-date><volume>0</volume><issue>28-30</issue><fpage>54</fpage><lpage>68</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/1237">https://www.isjaee.com/jour/article/view/1237</self-uri><abstract><p>Рассмотрен синтез и исследованы материалы с высокой ионной проводимостью, на основе которых создаются различные электрохимические устройства: газовые сенсоры, электролизеры, приборы дозированной подачи водорода и водяного пара и т.д. Интерес к исследованию физико-химических свойств оксидных протонных проводников обусловлен феноменом переноса протона в твердом теле, когда водород не является структурной единицей соединения. Перспективными считаются материалы на основе LaScO3 благодаря высокой объемной проводимости при пониженной температуре, химической стойкости и механической прочности по сравнению с хорошо известными протонными электролитами на основе цератов и цирконатов щелочно-земельных элементов. Проведен сравнительный анализ свойств протонного твердого электролита La1- xSrxScO3-α (х = 0,05; 0,10), синтезированного различными методами. Разработан вариант метода сжигания без использования нитратов в качестве исходных материалов, приводящий к получению керамики с плотностью не ниже 98 % относительно теоретической. Проведена всесторонняя качественная и количественная аттестация методами рентгенофазового анализа, растровой электронной микроскопии, рентгенофлуоресцентной и атомно-эмиссионной спектроскопии на разных этапах синтеза. Параметры структуры оксида La0,9Sr0,1ScO3–α уточнены с помощью метода рентгеноструктурного полнопрофильного анализа Ритвельда. Изучены термическое расширение, электропроводность в окислительных и восстановительных атмосферах в зависимости от температуры и влажности газовой фазы для материалов La1-xSrxScO3-α (х = 0,05; 0,10) разной плотности. Установлено, что разные атмосферы (сухой и влажный воздух, влажный Н2) слабо влияют на термическое расширение ниже 600 ºС. Проведено разделение объемной и межзеренной проводимостей методом импеданса. Определено, что обе проводимости имеют одинаковую энергию активации для материалов с плотностью 94–98 % относительно теоретической. Установлено, что высокая пористость материалов (30 %) негативно сказывается на ходе общей проводимости, при этом объемная проводимость почти не снижается. Предложена мостиковая модель, основывающаяся на полукогерентных границах, объясняющая низкую межзеренную проводимость для протонных электролитов с низкосимметричной решеткой. Полученные в работе данные могут представлять интерес для специалистов в области водородной энергетики, электрохимии, материаловедения и при разработке технологии электрохимических устройств: сенсоров, источников тока, топливных элементов.</p><p> </p></abstract><trans-abstract xml:lang="en"><p>The paper deals with synthesis and studies the materials with high ionic conductivity on the basis of which the various electrochemical devices are created: gas sensors, electrolyzers, devices for dosed supply of hydrogen and water vapor, etc. Interest in the study of the physicochemical properties of oxide proton conductors is due to the phenomenon of proton transfer in a solid body when hydrogen is not a structural unit of the compound. The LaScO3 based materials are considered promising because of the high bulk conductivity at low temperature, chemical stability and mechanical strength in comparison with the well-known proton electrolytes based on cerates and zirconates of alkaline-earth elements. A comparative analysis of the properties of the proton solid electrolyte La1-xSrxScO3-α (x = 0.05, 0.10) synthesized by various methods is carried out. A version of the combustion method without the use of nitrates as initial materials leading to the production of ceramics with a density of not less than 98% with respect to the theoretical was developed. Comprehensive qualitative and quantitative study was carried out by X-ray phase analysis, scanning electron microscopy, X-ray fluorescence and atomic emission spectroscopy at various stages of synthesis. The structural parameters of the La0.9Sr0.1ScO3–α oxide is refined using the method of X-ray diffraction full-profile Rietveld analysis. Thermal expansion and electrical conductivity were studied as a function of the temperature and humidity of the gas phase for La1-xSrxScO3-α (x = 0.05, 0.10) materials of different densities in oxidizing and reducing atmospheres. The composition of the atmosphere (dry and wet air, wet H2) is found out to have little effect on thermal expansion below 600°C. The separation of the bulk and grain boundary conductivities by the impedance method is carried out. Both conductivities are proven to have the same activation energy for materials with a density of 94-98% relative to the theoretical one. The high porosity of the materials (30%) adversely affects the total conductivity, while the bulk conductivity is almost not reduced. The bridging model based on semicoherent boundaries that explain the low grain boundaries conductivity for proton electrolytes with a low-symmetry lattice was discussed. The data obtained from this work may be of interest to specialists in the field of hydrogen energy, electrochemistry, materials science and development of technology for electrochemical devices: sensors, power sources, fuel cells.</p><p> </p></trans-abstract><kwd-group xml:lang="ru"><kwd>водородная энергетика</kwd><kwd>твердооксидные топливные элементы</kwd><kwd>керамические мембраны</kwd><kwd>LаScO3</kwd><kwd>электролит</kwd><kwd>перовскит</kwd><kwd>протонная проводимость</kwd><kwd>термическое расширение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hydrogen energy</kwd><kwd>Solid Oxide Fuel Cells</kwd><kwd>ceramic membranes</kwd><kwd>electrolyte</kwd><kwd>LаScO3</kwd><kwd>perovskite</kwd><kwd>proton conductivity</kwd><kwd>thermal expansion</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">Iwahara, H. Prospect of hydrogen technology using proton-conducting ceramics / H. 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