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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">vuzbiochemi</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Прикладная химия и биотехнология</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of Universities. Applied Chemistry and Biotechnology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-2925</issn><issn pub-type="epub">2500-1558</issn><publisher><publisher-name>ИРНИТУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/achb.910</article-id><article-id custom-type="edn" pub-id-type="custom">YBFJXA</article-id><article-id custom-type="elpub" pub-id-type="custom">vuzbiochemi-1230</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>ХИМИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>Получение и импедансная спектроскопия цезий(рубидий)-содержащих тройных вольфраматов</article-title><trans-title-group xml:lang="en"><trans-title>Ternary cesium(rubidium) tungstates: production and impedance spectroscopy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2071-1152</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Доржиева</surname><given-names>С. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Dorzhieva</surname><given-names>S. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сэсэгма Гэлэгжамсуевна Доржиева, к. х. н., старший научный сотрудник</p><p>670047; ул. Сахьяновой, 6; Улан-Удэ</p></bio><bio xml:lang="en"><p>Sesegma G. Dorzhieva, Cand. Sci. (Chemistry), Senior Researcher</p><p>670047; 6, Sakhyanova St.; Ulan-Ude</p></bio><email xlink:type="simple">bsesegma@mail.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/0000-0002-1231-0116</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Базарова</surname><given-names>Ж. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Bazarova</surname><given-names>J. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жибзема Гармаевна Базарова, д. х. н., профессор, главный научный сотрудник</p><p>670047;  ул. Сахьяновой, 6; Улан-Удэ</p></bio><bio xml:lang="en"><p>Jibzema G. Bazarova, Dr. Sci. (Chemistry), Professor, Chief Researcher</p><p>670047; 6, Sakhyanova St.; Ulan-Ude</p></bio><email xlink:type="simple">jbaz@binm.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Байкальский институт природопользования СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Baikal Institute of Nature Management SB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>06</day><month>07</month><year>2024</year></pub-date><volume>14</volume><issue>2</issue><fpage>166</fpage><lpage>172</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Доржиева С.Г., Базарова Ж.Г., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Доржиева С.Г., Базарова Ж.Г.</copyright-holder><copyright-holder xml:lang="en">Dorzhieva S.G., Bazarova J.G.</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://vuzbiochemi.elpub.ru/jour/article/view/1230">https://vuzbiochemi.elpub.ru/jour/article/view/1230</self-uri><abstract><p>   Цель работы состояла в направленном синтезе новых фаз вольфраматов одно-, трех- и четрехвалентных металлов и определении их кристаллографических, термических и электрофизических свойств.</p><p>   Методом твердофазных реакций в диапазоне температур 400−750 °С были получены вольфраматные фазы составов MRA0,5(WO4)3 (М – одно-, R – трех-, A – четырехзарядные элементы). Определены их кристаллографические и термические характеристики. Синтезированные тройные вольфраматы, кристаллизующиеся в гексагональной сингонии, исследованы методом дифференциальной сканирующей калориметрии. По данным дифференциальной сканирующей калориметрии установлено увеличение температур плавления соединений при возрастании ионного радиуса трехвалентного катиона в ряду СsRTi0,5(WO4)3 (R = Al, Cr, Ga, Fe, In). Такая же корреляция наблюдается при переходе от рубидиевых производных к цезиевым. Проведено сравнение термической стабильности тройных вольфраматов титанового и гафниевого рядов. Температуры плавления RbRTi0,5(WO4)3 примерно на 20 °С выше, чем у гафниевых аналогов. Методом импедансной спектроскопии исследованы диэлектрические характеристики CsRTi0,5(WO4)3 (R = Fe, Cr) представителей семейства тройных вольфраматов. Температурно-частотные зависимости проводимости тройных вольфраматов при различных частотах 1 Гц – 1 мГц, измеренные в режиме нагрева и охлаждения, характеризуются небольшим температурным гистерезисом и достигают величин 10-2–10-3 См/см в высокотемпературной области при энергии активации, равной 0,4–0,5 Эв. Характер частотных спектров импеданса, измеренных в диапазоне 1 Гц – 1 мГц при различных температурах, подтверждает наличие ионопроводящих свойств образца и позволяет рассматривать полученные фазы как перспективные твердые электролиты.</p></abstract><trans-abstract xml:lang="en"><p>   The work is aimed at the directed synthesis of new phases of tungstates containing mono-, tri-, and tetravalent metals, as well as the determination of their crystallographic, thermal, and electrophysical properties.</p><p>   The study used the method of solid-phase synthesis to obtain tungstate phases with composition MRA0.5(WO4)3 (M – singly, R – triply-, and A – tetra-charged elements) within the temperature range of 400–750 °С. Their crystallographic and thermal characteristics were determined. The synthesized ternary tungstates crystallizing in a hexagonal system were studied using differential scanning calorimetry. The technique revealed an increase in the melting temperatures of compounds with increasing ionic radius of the trivalent cation in the series CsRTi0.5(WO4)3 (R = Al, Cr, Ga, Fe, In). The same correlation is observed when switching from rubidium to cesium derivatives. The thermal stability of ternary titanium and hafnium tungstates was compared. The melting temperatures of RbRTi0.5(WO4)3 are about 20 °С higher than those of their hafnium counterparts. The dielectric characteristics of CsRTi0.5(WO4)3 (R = Fe, Cr) belonging to the ternary tungstate family were analyzed via impedance spectroscopy. The temperature and frequency dependences of the conductivity of ternary tungstates at different frequencies (1 Hz – 1 mHz), measured in heating and cooling modes, are characterized by a slight temperature hysteresis, reaching 10-2–10-3 S/cm in the high-temperature region at activation energy values of 0.4–0.5 eV. The impedance frequency spectra measured within the range of 1 Hz – 1 mHz at different temperatures confirm the ion-conducting properties of the sample, which allows the obtained phases to be considered promising solid electrolytes.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вольфраматы</kwd><kwd>дифференциальная сканирующая калориметрия</kwd><kwd>импедансная спектроскопия</kwd><kwd>рентгенофазовый анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>tungstates</kwd><kwd>differential scanning calorimetry</kwd><kwd>impedance spectroscopy</kwd><kwd>X-ray diffraction analysis</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Байкальского института природопользования СО РАН (№ 0273-2021-0008)</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of the state task of the Baikal Institute of Nature Management SB RAS (no. 0273-2021-0008)</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">Lee K.H., Chae K.-W., Cheon C.I., Kim J.S. 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