Electrical Properties of Beryllium-Doped Gd2Zr2O7 | Sciact - CRIS-system of Boreskov Institute of Catalysis

Electrical Properties of Beryllium-Doped Gd2Zr2O7 Full article

Journal

Inorganic Materials
ISSN: 0020-1685 , E-ISSN: 1608-3172

Output data

Year: 2021, Volume: 57, Number: 11, Pages: 1184-1193 Pages count : 10 DOI: 10.1134/S002016852111011X

Tags

impedance; oxygen ion conductivity; proton conductivity; pyrochlore

Authors

Shlyakhtina A.V. ¹ , Gorshkov N.V. ¹ , Kolbanev I.V. ¹ , Shefer K.I. ^2,3 , Kas’yanova A.V. ^4,5 , Medvedev D.A. ^4,5

Affiliations

1	Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, 119991 Russia
2	Boreskov Institute of Catalysis (Federal Research Center), Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
3	Novosibirsk State University, Novosibirsk, 630090 Russia
4	Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620219 Russia
5	Yeltsin Federal University, Yekaterinburg, 620002 Russia

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	426 (АААА-А20-120013190076-0)
2	Ministry of Science and Higher Education of the Russian Federation	0239-2021-0003

Dense Gd2Zr2O7-based ceramics with the composition Gd2Zr1.9Be0.1O6.9, containing heterovalently substituted beryllium on the zirconium site, have been prepared for the first time via mechanical activation of an oxide mixture, followed by annealing of green compacts at 1500°C. The use of mechanical activation has been shown to enable the preparation of dense ceramics (relative density of 88%) by annealing for 5 min and gas-tight ceramics (relative density of 97.3%) by annealing for 4 h. Gd2Zr1.9Be0.1O6.9 has a pure oxygen ion conductivity of 4.0 × 10–3 S/cm at 800°C. The main advantage of partial beryllium substitution on the zirconium site in Gd2Zr2O7 is the formation of a material having negligible electron and hole conductivities in wide ranges of oxygen partial pressures and temperatures. © 2021, Pleiades Publishing, Ltd.

Shlyakhtina A.V. , Gorshkov N.V. , Kolbanev I.V. , Shefer K.I. , Kas’yanova A.V. , Medvedev D.A.
Electrical Properties of Beryllium-Doped Gd2Zr2O7
Inorganic Materials. 2021. V.57. N11. P.1184-1193. DOI: 10.1134/S002016852111011X WOS Scopus РИНЦ ANCAN OpenAlex

Шляхтина А.В. , Горшков Н.В. , Колбанев И.В. , Шефер К.И. , Касьянова А.В. , Медведев Д.А.
Электрические свойства Gd2Zr2O7, допированного бериллием
Неорганические материалы. 2021. Т.57. №11. С.1253-1263. DOI: 10.31857/S0002337X21110117 РИНЦ OpenAlex

Submitted:	May 27, 2021
Accepted:	Jul 23, 2021
Published print:	Nov 30, 2021
Published online:	Nov 30, 2021

Web of science:	WOS:000723998800013
Scopus:	2-s2.0-85120155245
Elibrary:	47533600
Chemical Abstracts:	2021:2617022
Chemical Abstracts (print):	185:211175
OpenAlex:	W3215070646

DB	Citing
Scopus	1
Web of science	1
Elibrary	1
OpenAlex	1