Synthesis and physicochemical properties of a solid oxide nanocomposite based on a ZrO2-Y2O3-Gd2O3-MgO system

被引：19

作者：

Kalinina, M. V. ^{[1
]}

Morozova, L. V. ^{[1
]}

Egorova, T. L. ^{[1
]}

Arsent'ev, M. Yu. ^{[1
]}

Drozdova, I. A. ^{[1
]}

Shilova, O. A. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Grebenshchikov Inst Silicate Chem, Nab Makarova 2, St Petersburg 199034, Russia

[2] St Petersburg State Electrotech Univ, Ul Prof Popova 5, St Petersburg 197376, Russia

来源：

GLASS PHYSICS AND CHEMISTRY | 2016年 / 42卷 / 05期

关键词：

zirconium dioxide; nanocrystalline ceramics; coprecipitation of hydroxides; electrical conductance; solid electrolyte; fuel cell; COMPOSITES; ZIRCONIA;

D O I：

10.1134/S1087659616050060

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A highly dispersive powder with a (ZrO2)(0.92)(Y2O3)(0.03)(Gd2O3)(0.03)(MgO)(0.02) composition and specific surface area of 150 m(2)/g has been synthesized via a method of coprecipitation of hydroxides with the subsequent cryochemical treatment of the gel. Nanoceramics based on the cubic modification of zirconium dioxide with the grain size of similar to 40-45 nm have been obtained. The temperature dependence of the specific electrical conductance of the nanoceramics within a temperature range of 350-870A degrees C in air has been studied, and the ratio of the ionic and electronic parts of the conductance has been determined. Recommendations for the use of the obtained oxide nanocomposite as an electrolyte for a high-temperature fuel cell have been given.

引用

页码：505 / 511

页数：7

共 16 条

[1] [Anonymous], 1981, GOSUDARSTVENNYI STAN
[2] Physicochemical Properties of Nanocrystalline Composites Based on ZrO2, Al2O3, and Rare-Earth Oxides
Arsent'ev, M. Yu.
Tikhonov, P. A.
Kalinina, M. V.
[J]. GLASS PHYSICS AND CHEMISTRY, 2011, 37 (04) : 450 - 458
[3] Investigation of some physicochemical properties of ceramics, single crystals, and nanofilms based on zirconia, hafnia, and rare-earth oxides
Arsent'ev, M. Yu.
Tikhonov, P. A.
Kalinina, M. V.
Andreeva, N. S.
[J]. GLASS PHYSICS AND CHEMISTRY, 2010, 36 (04) : 478 - 483
[4] Arsent'ev M. Yu, 2011, THESIS
[5] Fuel cells: State-of-the-art and major scientific and engineering problems
Bagotzky, VS
Osetrova, NV
Skundin, AM
[J]. RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 2003, 39 (09) : 919 - 934
[6] Doroshkevich A. S., 2002, FIZ TEKH VYS DAVLENI, V12, P38
[7] Low-temperature sintering and microstructural development of nanocrystalline Y-TZP powders
Duran, P
Villegas, M
Capel, F
Recio, P
Moure, C
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1996, 16 (09) : 945 - 952
[8] Generalov M.B., 2006, KRIOKHIMICHESKAYA NA
[9] Ivanov V.V., 2007, ALTERNAT ENERG EKOL, V46, P75
[10] Ivanov V.V., 2010, ELEKTROKHIM ENERGET, V10, P3

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