Crystal structure, oxygen nonstoichiometry and thermal expansion of the layered NdBaCo2\_xMxO5+delta (M = Ni, Cu) / Aksenova T. V.,Urusova A. S.,Gavrilova L. Ya,Cherepanov V. A. // JOURNAL OF ALLOYS AND COMPOUNDS. - 2014. - V. 590, l. . - P. 474-478.

ISSN/EISSN:

0925-8388 / 1873-4669

Type:

Article

Abstract:

The homogeneity range and crystal structure of the NdBaCo2-xMxO5+delta (0.0 <= x <= 0.5 for M = Ni and 0.0 <= x <= 1.1 for M = Cu) solid solutions were determined by X-ray diffraction. The crystal structure of the NdBaCo2-xMxO5+delta was described as tetragonal (sp. gr. P4/mmm). The structural parameters were refined using Rietveld full-profile analysis. It was shown that parameter a remains practically constant while parameter c gradually increases with the increase of nickel or copper content. The changes of oxygen content in NdBaCo2-xMxO5+delta versus temperature were determined by thermogravimetric analysis. Gradual substitution of cobalt by copper or nickel leads to the decrease of oxygen content. The average thermal expansion coefficients for the NdBaCo2-xMxO5+delta ( M = Ni, Cu) samples were calculated within the temperature range 298-1273 K in air. The chemical stability of complex oxides NdBaCo2-xMxO5+delta (M = Ni, Cu) in contact with the electrolyte materials Ce0.8Sm0.2O2 delta and Zr0.85Y0.15O2 delta were investigated within the temperature range 1173-1373 K in air. (C) 2013 Elsevier B. V. All rights reserved.

Author keywords:

Crystal structure; X-ray diffraction; Thermogravimetric analysis; Iodometric titration; Oxygen content; Thermal expansion PHASES; NDBACO2O5+DELTA; EQUILIBRIA; CHEMISTRY; CATHODES; SYSTEM

DOI:

10.1016/j.jallcom.2013.11.235

Web of Science ID:

ISI:000330579600075

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAR 25
Publisher	ELSEVIER SCIENCE SA
Address	PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Language	English
EISSN	1873-4669
Keywords-Plus	PHASES; NDBACO2O5+DELTA; EQUILIBRIA; CHEMISTRY; CATHODES; SYSTEM
Research-Areas	Chemistry; Materials Science; Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy \& Metallurgical Engineering
Author-Email	vladimir.cherepanov@usu.ru
ResearcherID-Numbers	Cherepanov, Vladimir/E-6451-2014
ORCID-Numbers	Cherepanov, Vladimir/0000-0003-3653-6459
Funding-Acknowledgement	Russian Foundation for Basic Research {[}13-03-00958]; Ministry for Education and Science of Russian Federation within the Federal Target Program ``The scientific and scientific-education personnel of Innovative Russia
Funding-Text	This work was financially supported by the Russian Foundation for Basic Research (Project No 13-03-00958) and the Ministry for Education and Science of Russian Federation within the Federal Target Program ``The scientific and scientific-education personnel of Innovative Russia for 2009-2013{''}.
Number-of-Cited-References	22
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	21
Journal-ISO	J. Alloy. Compd.
Doc-Delivery-Number	302CS