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Redox potentials of gold-palladium powders in aqueous solutions of H2PdCl4 / O. V. Belousov [et al.] // Russ. J. Phys. Chem. A. - 2012. - Vol. 86, Is. 3. - P. 484-488, DOI 10.1134/S0036024412020070. - Cited References: 26 . - ISSN 0036-0244

РУБ Chemistry, Physical + Powders
Рубрики:
BIMETALLIC NANOPARTICLES
   METALLIC PALLADIUM
   COPPER
   ELECTRODE
   BLACK
   Bimetallic particles
   Bimetallic powders
   Gold-palladium
   Hydrochloric acid solution
   Nernst equation
   Redox potentials
   Gold
   Hydrochloric acid
   Redox reactions
   Secondary batteries
   Transmission electron microscopy
   X ray diffraction analysis
Кл.слова (ненормированные):
bimetallic powders -- gold-palladium -- redox potential
Аннотация: The redox potential of fine-dispersed and compact bimetallic powders of the palladium-gold system in hydrochloric acid solutions of H2PdCl4 at a temperature of 60A degrees C was studied. It was found that the redox potential increases with gold enrichment of the solid solution in accordance with the Nernst equation. The effect of gold-palladium particle size on this redox potential is shown. The morphology, sizes, and composition of bimetallic particles are determined via transmission electron microscopy and X-ray diffraction analysis.

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Публикация на русском языке Окислительно-востановительные потенциалы золото-палладиевых порошков в водных растворах H2PdCl4 [Текст] / О. В. Белоусов [и др.] // Журн. физ. химии : Наука, 2012. - Т. 86 № 3. - С. 557-562

Держатели документа:
[Belousov, O. V.
Borisov, R. V.
Parfenov, V. A.
Dorokhova, L. I.] Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk 660041, Russia
[Zharkov, S. M.] Russian Acad Sci, Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
[Zharkov, S. M.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Belousov, O. V.; Borisov, R. V.; Zharkov, S. M.; Жарков, Сергей Михайлович; Parfenov, V. A.; Dorokhova, L. I.
}
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Effect of electrode material on impedance spectra of metal-polyethylene structures with carbon nanotubes / N. A. Drokin [et al.] // Phys. Solid State. - 2012. - Vol. 54, Is. 4. - P. 844-848, DOI 10.1134/S1063783412040063. - Cited References: 15. - This study was supported by the Ministry of Education and Science of the Russian Federation within the framework of the Russian Federal Targeted Program "Scientific and Scientific-Pedagogical Human Resources for the Innovative Russia in 2009-2011" and the Presidium of the Russian Academy of Sciences (integration project no. 27.1). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
SPECTROSCOPY
Аннотация: The effect of an electrode material on electrical properties of a composite material based on super-high-molecular polyethylene (SHMPE) filled with carbon nanotubes has been studied using impedance spectroscopy. Using the method of replacing the sample by an equivalent electric circuit, it has been found that, depending on the electrode material, a blocking barrier with high active resistance and a space charge region adjacent to it arise in the interface region. It has been shown that the barrier height is controlled by surface electronic states of SHMPE and weakly depends on the electron work function of metal electrodes (Bardeen barrier). The characteristic times of electrical relaxation characterizing bulk and interface regions of the composite under study have been determined.

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Публикация на русском языке Влияние материала электродов на импедансные спектры структур металл-полиэтилен с углеродными нанотрубками [Текст] / Н. А. Дрокин [и др.] // Физ. тверд. тела : Физико-технический институт им. А.Ф.Иоффе РАН, 2012. - Т. 54 вып. 4. - С. 791-796

Держатели документа:
[Drokin, N. A.
Glushchenko, G. A.
Osipova, I. V.
Maslennikov, A. N.
Churilov, G. N.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Drokin, N. A.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
[Kokourov, G. A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Drokin, N. A.; Дрокин, Николай Александрович; Kokourov, G. A.; Glushchenko, G. A.; Глущенко, Гарий Анатольевич; Osipova, I. V.; Осипова, Ирина Владимировна; Maslennikov, A. N.; Масленников, Алексей Николаевич; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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High-capacity electrode material BC3 for lithium batteries proposed by ab initio simulations / A. A. Kuzubov [et al.] // Phys. Rev. B. - 2012. - Vol. 85, Is. 19. - Ст. 195415, DOI 10.1103/PhysRevB.85.195415. - Cited References: 22. - We thank the Institute of Computer Modeling (Siberian Division, Russian Academy of Sciences, Russia), the Joint Supercomputer Center of the Russian Academy of Sciences, the supercomputer center of the Institute of Space and Information Technologies of the Siberian Federal University, and the supercomputer center of the Moscow State University (SKIF-MGU) for providing an opportunity to use their computers for performing all calculations. The work was supported by Russian Foundation for Basic Research Grant No. 12-02-00640-a and federal program Grant No. 1.3.2, "Scientific and pedagogical specialists in innovation Russia 2009-2013." . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
TRANSITION
   GRAPHITE
   POINTS
   CARBON
Аннотация: The absorption energy and diffusion rates of lithium atoms inside graphitelike boron carbide (BC3) crystal are investigated by the ab initio pseudopotential density-functionalmethod using generalized gradient approximation. It is shown that lithium may effectively intercalate this structure with the maximum lithium concentration corresponding to Li2BC3 stoichiometry, which is threefold in comparison to lithium in graphite. The potential barrier values for lithium diffusion both at low and maximum concentration are about 0.19 eV, so lithium atoms inside the BC3 structure can move easily. These findings suggest that boron carbide looks like a good candidate as an anode material in lithium ion batteries.

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Держатели документа:
[Kuzubov, Alexander A.
Eliseeva, Natalya S.
Tomilin, Felix N.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Fedorov, Aleksandr S.
Eliseeva, Natalya S.
Tomilin, Felix N.
Avramov, Pavel V.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Avramov, Pavel V.] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
[Fedorov, Dmitri G.] Natl Inst Adv Ind Sci & Technol, Nanosyst Res Inst, Tsukuba, Ibaraki 3058568, Japan

Доп.точки доступа:
Kuzubov, A. A.; Кузубов, Александр Александрович; Fedorov, A. S.; Федоров, Александр Семенович; Eliseeva, N. S.; Елисеева, Наталья Сергеевна; Tomilin, F. N.; Томилин, Феликс Николаевич; Avramov, P. V.; Аврамов, Павел Вениаминович; Fedorov, D. G.
}
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Belyaev, B. A.
Impedance spectroscopy investigation of electrophysical characteristics of the electrode-liquid crystal interface / B. A. Belyaev, N. A. Drokin // Phys. Solid State. - 2015. - Vol. 57, Is. 1. - P. 181-187, DOI 10.1134/S1063783415010060. - Cited References:22. - This study was supported by the Siberian Branch of the Russian Academyof Sciences (integration project no. 109). . - ISSN 1063. - ISSN 1090-6460. -

РУБ Physics, Condensed Matter
Рубрики:
DIELECTRIC-PROPERTIES
CONDUCTIVITY
Аннотация: The behavior of frequency dependences of the impedance of a capacitive measuring cell with a liquid crystal has been investigated in the frequency range from 10−1 to 105 Hz. A method for determining electrophysical characteristics of the liquid crystal in the bulk and at the liquid crystal-metal electrode interface has been proposed and tested for liquid crystals of the alkyl cyanobiphenyl series, which are doped with ionic surfactants. The method is based on the use of an equivalent electrical circuit, which makes it possible to approximate the impedance spectra with the required accuracy, and also on the determination of the frequency at the singular point in the impedance spectra, at which the reactive component of the electric current flowing through the liquid-crystal cell is negligible compared to the active component.

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Публикация на русском языке Беляев, Борис Афанасьевич. Исследование электрофизических характеристик границы электрод–жидкий кристалл методом импедансной спектроскопии [Текст] / Б. А. Беляев, Н. А. Дрокин // Физ. тверд. тела : Физико-технический институт им. А. Ф. Иоффе РАН, 2015. - Т. 57 Вып. 1. - С. 170-175

Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Drokin, N. A.; Дрокин, Николай Александрович; Беляев, Борис Афанасьевич; Siberian Branch of the Russian Academy of Sciences [109]
}
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Structures based on graphitized nanotubulenes with a common electrode in a matrix of porous anodic alumina for the purpose of forming electrically switchable membranes / M. M. Simunin [et al.] // Tech. Phys. Lett. - 2015. - Vol. 41, Is. 11. - P. 1047-1050, DOI 10.1134/S1063785015110103. - Cited References:20. - This work was supported financially by the Russian Science Foundation, project no. 15-19-10017 . - ISSN 1063-7850. - ISSN 1090-6533

РУБ Physics, Applied
Рубрики:
POLYPEPTIDE BRUSH
   ION-TRANSPORT
   PERMEABILITY
   POLYMER
   PHOTOREGULATION
   PERMEATION
   ACID
Аннотация: A structure based on porous anodic alumina with through pores is synthesized. This structure may be of some interest in terms of fabricating electrically switchable membranes. Conducting tubulenes connected to a common input electrode are located in the pores of the structure. It is hypothesized that enhancement of the electric field nonuniformity associated with the indicated structure morphology should help raise the degree of ionic selectivity of the membrane and broaden the range of permissible concentrations of ions in the processed solution. An suggestion regarding the structure of synthesized tubulenes in the context of the problem of suppressing the physical sorption of ions on the pore surface and raising the hydrogen and oxygen reduction potentials relative to those of state-of-the-art field-switchable membranes is also made.

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Публикация на русском языке Структуры на основе графитизированных нанотубуленов с общим электродом в матрице пористого анодного оксида алюминия для задачи формирования переключаемых электрическим полем мембран [Текст] / М. М. Симунин [и др.] // Письма в ЖТФ. - Санкт-Петербург : Санкт-Петербургская издательско-книготорговая фирма "Наука", 2015. - Т. 41 Вып. 21. - С. 52-59

Держатели документа:
Natl Res Univ Elect Technol MIET, Moscow 124498, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Inst Computat Modeling, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Simunin, M. M.; Khartov, S. V.; Shiverskii, A. V.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Fadeev, Yu. V.; Voronin, A. S.; Russian Science Foundation [15-19-10017]
}
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Growth of α-FeSi2 nanocrystals on si(100) with Au catalyst / I. A. Tarasov [et al.] // Mater. Lett. - 2016. - Vol. 168. - P. 90-94, DOI 10.1016/j.matlet.2016.01.033. - Cited References: 25. - The work was supported by the Program of the President of the Russian Federation for the support of leading scientific schools (Scientific School 2886.2014.2), The Russian Foundation for Basic Research (RFBR) (Grants no. 13-02-01265), State Contract no. 02.G25.31.0043 and State Task no. 16.663.2014К). . - ISSN 0167-577X

РУБ Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
EPITAXIAL-GROWTH
   LOW-TEMPERATURE
   FeSi2
   NANOWIRES
   Si(111)
   FILMS
   Si
Кл.слова (ненормированные):
Nanomaterials -- Molecular beam epitaxy -- α-FeSi2 -- Electrode
Аннотация: Self-organized α-FeSi2 nanocrystals on (100) silicon substrate were synthesized by molecular beam epitaxy with Au catalyst. The microstructure and basic orientation relationship between the silicide nanocrystals and silicon substrate were analyzed in detail. α-FeSi2 nanocrystals appeared to be inclined trapezoid and rectangular nanoplates, polyhedral nanobars and pyramid-like ones, aligned along 011 directions on (100) silicon substrate with the length up to 1.5 μm, width ranging between 80 and 500 nm and thickness from 30 to 170 nm. As has been proposed metallic iron silicide may be used for manufacturing electric contacts on silicon. A current-voltage characteristic of the structure was measured at room temperature and showed good linearity.

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Держатели документа:
Siberian State Aerospace University, 31 Krasnoyarsky Rabochiy Av., Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Russian Academy of Sciences, Akademgorodok 50, bld. 38, Krasnoyarsk, Russian Federation
Far Eastern State Transport University, Serysheva str. 47, Khabarovsk, Russian Federation
Krasnoyarsk Scientific Centre, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Tarasov, I. A.; Тарасов, Иван Анатольевич; Yakovlev, I. A.; Яковлев, Иван Александрович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Rautskii, M. V.; Рауцкий, Михаил Владимирович; Nemtsev, I. V.; Немцев, Иван Васильевич; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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High performance hybrid rGO/ Ag quasi-periodic mesh transparent electrodes for flexible electrochromic devices / A. S. Voronin [et al.] // Appl. Surf. Sci. - 2016. - Vol. 364. - P. 931–937, DOI 10.1016/j.apsusc.2015.12.182. - Cited References: 31 . - ISSN 0169-4332. - ISSN 1873-5584

РУБ Chemistry, Physical + Materials Science, Coatings & Films + Physics, Applied + Physics, Condensed Matter
Рубрики:
NANOWIRE NETWORKS
   GRAPHENE FILMS
   OXIDE
   OXIDATION
   HEATERS
Кл.слова (ненормированные):
Quasi-periodic mesh transparent electrode self-organized template -- Reduced graphene oxide (rGO) -- Flexible electrochromic device
Аннотация: A possibility of creating a stable hybrid coating based on the hybrid of a reduced graphene oxide (rGO)/ Ag quasi-periodic mesh (q-mesh) coating has been demonstrated. The main advantages of the suggested method are the low cost of the processes and the technology scalability. The Ag q-mesh coating is formed by means of the magnetron sputtering of silver on the original template obtained as a result of quasi-periodic cracking of a silica film. The protective rGO film is formed by low temperature reduction of a graphene oxide (GO) film, applied by the spray-deposition in the solution of NaBH4. The coatings have low sheet resistance (12.3 Ω/sq) and high optical transparency (82.2%). The hybrid coating are characterized by high chemical stability, as well as they show high stability to deformation impacts. High performance of the hybrid coatings as electrodes in the sandwich-system «electrode – electrochromic composition – electrode» has been demonstrated. The hybrid electrodes allow the electrochromic sandwich to function without any visible degradation for a long time, while an unprotected mesh electrode does not allow performing even a single switching cycle.

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Доп.точки доступа:
Voronin, A. S.; Ivanchenko, F. S.; Simunin, M. M.; Shiverskiy, A. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Nemtsev, I. V.; Fadeev, Y. V.; Karpova, D. V.; Khartov, S. V.
}
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Decoration of carbon nanomaterial powders with dispersed platinum metal particles / V. G. Isakova [et al.] // Russ. J. Appl. Chem. - 2018. - Vol. 91, Is. 7. - P. 1209-1216, DOI 10.1134/S1070427218070212. - Cited References: 22. - The study was performed with the support and equipment of the Center for Shared Use of the Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences. . - ISSN 1070-4272. - ISSN 1608-3296

РУБ Chemistry, Applied
Рубрики:
NANOPARTICLES
   PALLADIUM
   FULLERENE
   ELECTRODE
   NANOTUBES
   OXIDATION
Кл.слова (ненормированные):
carbon nanomaterials -- platinum metal nanoparticles -- in situ one-step method
Аннотация: Carbon nanomaterials (fullerite, detonation nanodiamonds, Taunit, fullerenol, fullerene-containing black) were decorated with platinum group metal nanoparticles in situ in one step by low-temperature combustion (~250–270°С) of a powdered mixture of platinum metal acetylacetonate [Pt-M(асас)n, Pt-М = Pt(II), Pd(II), Rh(III), Ir(III), acac = CH3COCHCOCH3, n is the oxidation state of Pt-М] with carbon nanomaterials in air. As shown by thermal analysis, the process is based on thermal oxidative degradation of the organometallic complex, catalyzed by carbon nanomaterials, with oxidation (combustion) of the organic moiety and release of the metal into the condensed phase. The thermal process in an open system occurs in the glowing mode (210–250°С); the size of the nanoparticles formed is 7–30 nm. Under the conditions restricting the air access to the reaction mixture and free outflow of gaseous products formed by oxidation of acac ligands, the nanoparticle size decreases to 3–10 nm. The particle size depends on the metal amount in the initial powder mixture and on the support morphology.

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Публикация на русском языке Декорирование порошков углеродных наноматериалов дисперсными частицами платиновых металлов [Текст] : статья / В. Г. Исакова [и др.] // Журн. прикл. химии. - 2018. - Т. 91 № 7. - С. 1040-1048

Держатели документа:
Russian Acad Sci, Kirenksy Inst Phys, Separate Dept, Fed Res Ctr,Krasnoyarsk Sci Ctr,Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Isakova, V. G.; Исакова, Виктория Гавриловна; Osipova, I. V.; Осипова, Ирина Владимировна; Dudnik, A. I.; Дудник, Александр Иванович; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Zharikova, N. V.; Nemtsev, I. V.; Volochaev, M. N.; Center for Shared Use of the Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences
}
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An update on inert anodes for aluminium electrolysis / A. S. Yasinskiy, S. K. Padamata, P. V. Polyakov, A. V. Shabanov // Non-Ferrous Met. - 2020. - Vol. 48, Is. 1. - P. 15-23, DOI 10.17580/nfm.2020.01.03. - Cited References: 62. - The work is performed as a part of the state assignment for the science of Siberian Federal University, project number FSRZ-2020-0013. Use of equipment of Krasnoyarsk Regional Center of Research Equipment of Federal Research Center “Krasnoyarsk Science Center SB RAS” is acknowledged . - ISSN 2072-0807
Кл.слова (ненормированные):
Inert anodes -- aluminium electrolysis -- CO2 emission -- metallic anode -- cermet anode -- ceramic anode -- oxygenevolving electrode -- fluoride melt -- corrosion -- oxidation -- low-temperature electrolyte -- Hall-Heroult cell
Аннотация: This update includes the literature related to the inert anodes which were published in the past decade. The metallic anodes are widely regarded as promising candidates to replace the carbon anodes due to its attractive properties like good electrical conductivity, easy to manufacture and high resistance to high thermal shocks. The metals have been tested in pure state and alloy (binary, ternary) form. The oxide scale formed on the anode surface acts as a barrier between the electrolyte and the anode, which protects the anode from being dissolved. The layer of molten fluorides is formed between the scale and the metal anode after a certain time of polarization, and the oxide scale acts as a bipolar electrode. Metal like Cu is reduced at the internal side of the scale. This paper elaborates the effects of various parameters on the performance of the anode. Cu-based alloys (Cu – Ni – Fe and Cu – Al) have shown promising results and could perform well in low-temperature electrolytes. It has been well established that the Cu content in Cu – Ni – Fe and Cu – Al alloys plays a major role in the metal dissolution as the CuO/Cu2O scales formed on the outer layer act as a sacrificial one. The corrosion rate of an anode can be reduced by decreasing the operating temperature, which is possible by using the KF – AlF3 melts. The use of suspensions can increase the purity of the produced metal by stop-ping the anode products to come in contact with cathode metal. Many industries including RUSAL and ELYSIS are still conducting a considerable amount of research to develop an inert anode and are expecting to have a carbon-free cell in the nearest future.

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Держатели документа:
Laboratory of Physics and Chemistry of Metallurgical Processes and Materials, Siberian Federal University, Krasnoyarsk, Russian Federation
Laboratory of Molecular Spectroscopy, Krasnoyarsk Science Center SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Yasinskiy, A. S.; Padamata, S. K.; Polyakov, P. V.; Shabanov, A. V.; Шабанов, Александр Васильевич
}
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10.

    Thallium ionic conductivity of new thallium indium hafnium molybdate ceramics / V. G. Grossman, J. G. Bazarova, M. S. Molokeev, B. G. Bazarov // Ionics. - 2020. - Vol. 26. - P. 6157-6165, DOI 10.1007/s11581-020-03739-7. - Cited References: 60. - This study was carried out within the state assignment of FASO of Russia (Theme No 0339-2016-0007) as well was supported by RFBR Grants 18-08-00799 and 18-03-00557 . - ISSN 0947-7047. - ISSN 1862-0760
   Перевод заглавия: Таллий-ионная проводимость новой керамики на основе таллия, индия, гафния, молибдата

РУБ Chemistry, Physical + Electrochemistry + Physics, Condensed Matter
Рубрики:
POSITIVE ELECTRODE MATERIAL
CRYSTAL-STRUCTURE
TRIPLE MOLYBDATE
Кл.слова (ненормированные):
Synthesis -- Thallium -- Molybdates -- Phase diagram -- DSC -- Conducting material
Аннотация: In the process of studying the system Tl2MoO4–In2(MoO4)3–Hf(MoO4)2, a new thallium indium hafnium molybdate was found. The crystal structure of the molybdate Tl5InHf(MoO4)6 was determined in the centrosymmetric space group R3¯c (a = 10.63893 (5) Å, c = 38.1447(3) Å; V = 3739.04 (4) Å3, Z = 6). The structure is a three-dimensional framework consisting of alternating (Hf,In)O6-octahedra connected by МоО4-tetrahedra. Each octahedron has common vertices with tetrahedra. The atoms arranged in this way form channels extended along with the a and b axes, in which thallium atoms are located. The conductivity behavior of Tl5InHf(MoO4)6 ceramics was studied in the temperature range from 300 to 870 K. The conductivity of the heavy cations of thallium is activated with increasing temperature.

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Держатели документа:
Russian Acad Sci, Baikal Inst Nat Management, Siberian Branch, Sakhyanovoy St 6, Ulan Ude 670047, Buryat Republic, Russia.
Russian Acad Sci, Fed Res Ctr KSC, Kirensky Inst Phys, Siberian Branch, 50-38 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 82 Svobodniy Av, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Grossman, Victoria G.; Bazarova, J. G.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Bazarov, B. G.; RFBRRussian Foundation for Basic Research (RFBR) [0339-2016-0007]; [18-08-00799]; [18-03-00557]
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