Correlation between the Electrical Properties and Structural and Morphological Characteristics of Samples in the Ba2In2O5-Ba2InNbO6 Quasi-Binary Eutectic System

被引：0
作者：
Matveev, E. S. [1 ]
Kochetova, N. A. [1 ]
Alyabysheva, I. V. [1 ]
Animitsa, I. E. [1 ]
机构：
[1] Ural Fed Univ, Ekaterinburg 620002, Russia
来源：
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2024年
关键词：
complex oxides; oxygen-ion conductivity; eutectic-composite electrolytes; PROTON-CONDUCTING ELECTROLYTES; TRANSPORT-PROPERTIES; WATER INCORPORATION; ION-TRANSPORT; CHEMISTRY; NANOIONICS; OXIDES;
D O I：
10.1134/S0036023624602897
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The structural and morphological properties of samples in the Ba2In2O5-Ba2InNbO6 eutectic system were studied when treated below and above the eutectic temperature. A narrow-extent Ba2In2-xNbxO5+x (x <= 0.05) solid solution and (1 - y)Ba2In1.95Nb0.05O5.05 center dot yBa(2)InNbO(6) composites were found in the system. In the y >= 0.15 composites, the major phase is a stabilized structure with a disordered arrangement of oxygen vacancies. The total electrical conductivity in dry air is determined primarily by oxygen-ion transfer, and it increases for both the solid solution and the composites; the greatest increase of about two orders of magnitude is in the y = 0.15 and 0.25 composite samples treated at above-eutectic temperature. The increase in electrical conductivity is due to the combined influence of structural and morphological factors. The composites treated at above-eutectic temperature have a specific morphology. A layer of submicron-sized crystallites is formed on the surface of the grains of the major phase upon eutectic crystallization, which is responsible for the appearance of the composite electrical conductivity effect.
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页码：1912 / 1922
页数：11
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共 37 条
  • [1] Stabilizing a disordered structural modification of barium indate by means of heterogenous doping
    Alyabysheva I.V.
    Kochetova N.A.
    Matveev E.S.
    Baldina L.I.
    Animitsa I.E.
    [J]. Bulletin of the Russian Academy of Sciences: Physics, 2017, 81 (3) : 384 - 386
  • [2] Transport properties and modification of potassium dihydrogen orthophosphate
    Bagryantseva, I. N.
    Ponomareva, V. G.
    [J]. INORGANIC MATERIALS, 2016, 52 (12) : 1276 - 1282
  • [3] Baller F., 1996, Doctoral (Chem.) Dissertation
  • [4] Filippov SP, 2021, RUSS CHEM REV+, V90, P627, DOI [10.1070/RCR5014, 10.1070/RCR5014?locatt=label:RUSSIAN]
  • [5] Synthesis and Electrical Properties of Nd2(WO4)3-SiO2 Composites
    Guseva, A. F.
    Pestereva, N. N.
    [J]. RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2023, 68 (03) : 363 - 369
  • [6] Effect of SiO2 Concentration on the Electrical Conductivity of M2(WO4)3/SiO2 (M = La, Sm) Composites
    Guseva, A. F.
    Pestereva, N. N.
    Pyrlik, E., V
    Korona, D., V
    [J]. INORGANIC MATERIALS, 2022, 58 (06) : 612 - 619
  • [7] Effect of partial substitution of In by Zr, Ti and Hf on protonic conductivity of BaInO2.5
    Hideshima, Naoki
    Hashizume, Kenichi
    [J]. SOLID STATE IONICS, 2010, 181 (37-38) : 1659 - 1664
  • [8] High electrical conductivity in Ba2In2O5 brownmillerite based materials induced by design of a Frenkel defect structure
    Ito, Shigeharu
    Mori, Toshiyuki
    Yan, Pengfei
    Auchterlonie, Graeme
    Drennan, John
    Ye, Fei
    Fugane, Keisuke
    Sato, Takaya
    [J]. RSC ADVANCES, 2017, 7 (08): : 4688 - 4696
  • [9] Kalinina T. A., 1983, Russ. J. Inorg. Chem, V28, P466
  • [10] Lanthanum-Containing Proton-Conducting Electrolytes with Perovskite Structures
    Kasyanova, A. V.
    Rudenko, A. O.
    Lyagaeva, Yu. G.
    Medvedev, D. A.
    [J]. MEMBRANES AND MEMBRANE TECHNOLOGIES, 2021, 3 (02) : 73 - 97
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