Improved ceramic and electrical properties of CaZrO3-based proton-conducting materials prepared by a new convenient combustion synthesis method / Lyagaeva J.,Danilov N.,Korona D.,Farlenkov A.,Medvedev D.,Demin A.,Animitsa I.,Tsiakaras P. // CERAMICS INTERNATIONAL. - 2017. - V. 43, l. 9. - P. 7184-7192.

ISSN/EISSN:

0272-8842 / 1873-3956

Type:

Article

Abstract:

The present work emphasizes the features of a new combustion synthesis method suitable for easy synthesis and sintering of CaZrO3-based materials as promising proton-conducting electrolytes for electrochemical applications in solid oxide electrochemical devices. Sc- and In-doped CaZrO3 compounds are selected to be the objects of investigation and their crystal structure properties as well as microstructural, thermal and electrical characteristics are studied by the means of X-ray diffraction analysis, high-temperature dilatometry, scanning electron spectroscopy, impedance and 4-probe DC conductivity techniques. The established properties are critically compared with previously obtained data to confirm the prospects of the proposed method synthesis for the preparation of Zr-based proton-conducting ceramic materials. It is found that CaZr0.93Sc0.05O3-delta exhibits predominantly protonic conductivity under wet air atmospheres below 700 C-omicron; while, CaZr0.9In0.1O3-delta demonstrates a certain value of electronic conductivity along with ionic one.

Author keywords:

Combustion synthesis method; Solid state gas sensors; CaZrO3; Proton-conducting ceramic materials; Electrolytes; Perovskite IN-DOPED CAZRO3; COMPLEXATION METHOD; CUBIC CAZRO3; HYDROGEN; OXIDES; ELECTROLYTE; POWDERS; CAZR0.90IN0.10O3-DELTA; X=0.03-0.20; FABRICATION

DOI:

10.1016/j.ceramint.2017.03.006

Web of Science ID:

ISI:000401401800073

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JUN 15
Publisher	ELSEVIER SCI LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Language	English
EISSN	1873-3956
Keywords-Plus	IN-DOPED CAZRO3; COMPLEXATION METHOD; CUBIC CAZRO3; HYDROGEN; OXIDES; ELECTROLYTE; POWDERS; CAZR0.90IN0.10O3-DELTA; X=0.03-0.20; FABRICATION
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Ceramics
Author-Email	dmitrymedv@mail.ru irina.animitsa@urfu.ru tsiak@mie.uth.gr
ResearcherID-Numbers	Julia, Lyagaeva/E-4687-2017 Danilov, Nikolai/O-4150-2017 Farlenkov, Andrey/C-5426-2014
ORCID-Numbers	Julia, Lyagaeva/0000-0003-4496-3768 Danilov, Nikolai/0000-0003-2983-2110 Farlenkov, Andrey/0000-0001-5507-7783 Medvedev, Dmitry/0000-0003-1660-6712
Funding-Acknowledgement	Ministry of Education and Science of the Russian Federation {[}14.Z50.31.0001, 4.1039.2014/K]
Funding-Text	This work was financially supported by the Ministry of Education and Science of the Russian Federation in the frame of the Mega-grant projects {[}Contract no. 14.Z50.31.0001] and the State Task {[}Project no. 4.1039.2014/K]. The characterization of powder and ceramic materials was carried out at the Shared Access Center ``Composition of Compounds{''} of the Institute of High Temperature Electrochemistry {[}48].
Number-of-Cited-References	47
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	4
Journal-ISO	Ceram. Int.
Doc-Delivery-Number	EV0AW