Crystal structure and physicochemical properties of layered perovskite-like phases LnBaCo(2)O(5+delta) / Aksenova T. V.,Gavrilova L. Ya.,Tsvetkov D. S.,Voronin V. I.,Cherepanov V. A. // RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A. - 2011. - V. 85, l. 3. - P. 427-432.

ISSN/EISSN:

0036-0244 / 1531-863X

Type:

Article

Abstract:

Complex oxides LnBaCo(2)O(5 + delta) (Ln = Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y) were obtained by solid-state synthesis at 1373 K in air. The crystal structure of layered perovskites LnBaCo(2)O(5 + delta) was studied by X-ray and neutron diffraction analyses. It was shown that cobaltites LnBaCo(2)O(5 + delta) crystallized in tetragonal (space group P4/mmm, 0.6 > delta > 0.45) or orthorhombic (space group Pmmm, 0.6 > delta > 0.45) structures depending on the radius of the lanthanide ion and the oxygen content. The dependences of the unit cell parameters of LnBaCo(2)O(5 + delta) on the radius of the lanthanide ion were obtained. The average thermal expansion coefficients at temperatures from 298 to 1373 K in air were determined. The dependence of the chemical component of thermal expansion on the oxygen content was evaluated for LnBaCo(2)O(5 + delta) (Ln = Nd, Sm, Gd, Y).

Author keywords:

layered perovskite-like phases; crystal structure; X-ray and neutron diffraction analyses OXIDE FUEL-CELLS; ELECTROCHEMICAL PERFORMANCE; OXYGEN NONSTOICHIOMETRY; PHYSICAL-PROPERTIES; CATHODE; YBACO2O5+DELTA; COBALTITES; GD

DOI:

10.1134/S0036024411030022

Web of Science ID:

ISI:000286985400014

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1531-863X
Keywords-Plus	OXIDE FUEL-CELLS; ELECTROCHEMICAL PERFORMANCE; OXYGEN NONSTOICHIOMETRY; PHYSICAL-PROPERTIES; CATHODE; YBACO2O5+DELTA; COBALTITES; GD
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Physical
Author-Email	aksenovatanya@yandex.ru
ResearcherID-Numbers	Cherepanov, Vladimir/E-6451-2014 Voronin, Vladimir/J-7733-2013 Tsvetkov, Dmitry/N-2491-2016
ORCID-Numbers	Cherepanov, Vladimir/0000-0003-3653-6459 Voronin, Vladimir/0000-0002-3901-9812
Funding-Acknowledgement	Russian Foundation for Basic Research {[}09-03-00620]; Ministry of Education and Science of the Russian Federation
Funding-Text	This work was carried out with partial financial support of the Russian Foundation for Basic Research (project code no. 09-03-00620) and the Ministry of Education and Science of the Russian Federation under the Scientific and Pedagogical Stuff of Innovation Russia program for 2009-2013.
Number-of-Cited-References	15
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	10
Journal-ISO	Russ. J. Phys. Chem. A
Doc-Delivery-Number	716PH