Crystal Structure, Oxygen Nonstoichiometry, and Conductivity of Mixed Ionic–Electronic Conducting Perovskite Composites with CeO[sub 2]

2010 ◽  
Vol 157 (1) ◽  
pp. B159 ◽  
Author(s):  
E. Konysheva ◽  
S. M. Francis ◽  
J. T. S. Irvine
Keyword(s):  
Crystal Structure ◽  
Oxygen Nonstoichiometry

Crystal structure, oxygen nonstoichiometry and thermal expansion of ordered Y2Ba3Fe3.1Co1.9O13+δ

2019 ◽  
Vol 251 ◽  
pp. 78-80
Author(s):  
A.S. Urusova ◽  
A.V. Bryuzgina ◽  
M.Yu. Mychinko ◽  
A.S. Vizner ◽  
V.A. Cherepanov
Keyword(s):  
Crystal Structure ◽  
Thermal Expansion ◽  
Oxygen Nonstoichiometry

Crystal structure, oxygen nonstoichiometry, thermal expansion and conductivity of (Nd,Sr)(Fe,Co)O 3−δ oxides

2016 ◽  
Vol 295 ◽  
pp. 96-103 ◽  
Author(s):  
Sh.I. Elkalashy ◽  
T.V. Aksenova ◽  
A.S. Urusova ◽  
V.A. Cherepanov
Keyword(s):  
Crystal Structure ◽  
Thermal Expansion ◽  
Oxygen Nonstoichiometry

scholarly journals Поведение кобальтовой и редкоземельной подсистем в фрустрированных кобальтитах DyBaCo-=SUB=-4-=/SUB=-O-=SUB=-7+x-=/SUB=-

2019 ◽  
Vol 61 (1) ◽  
pp. 71
Author(s):  
З.А. Казей ◽  
В.В. Снегирев ◽  
М.С. Столяренко ◽  
К.С. Пигальский ◽  
Л.П. Козеева ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Effective Field ◽  
Oxygen Nonstoichiometry ◽  
Structural Distortions ◽  
Rhombic Distortion ◽  
Order Of Magnitude ◽  
Oxygen Excess ◽  
Elastic Characteristics

AbstractStructural, elastic, and magnetic properties of cobaltites DyBaCo_4O_7 + _ x produced by various technologies and distinguished by oxygen excess x are experimentally studied. It was found that rhombic distortion of the crystal structure of annealed stoichiometric samples with x = 0 results in frustration removal and elastic property anomalies in the T _ N region, caused by cobalt subsystem ordering. At an insignificant oxygen nonstoichiometry, no structural distortions occur in quenched samples, and anomalies in elastic characteristics in the T _ N region smooth and disappear. The studies of DyBaCo_4O_7 + _ x magnetic properties show that the rare-earth (RE) subsystem remains paramagnetic and its contribution exceeds the contribution of the Co-subsystem with strong antiferromagnetic couplings by an order of magnitude. The magnetic susceptibility of the stoichiometric sample does not exhibit an appreciable anomaly at T _ N , since cobalt subsystem ordering is not accompanied by the formation of a noticeable effective field on RE ions.

Crystal structure and oxygen nonstoichiometry of the HoxSr1−xCoO3−δ

2012 ◽  
Vol 27 (15) ◽  
pp. 2030-2034 ◽  
Author(s):  
Vladimir A. Cherepanov ◽  
Ludmila Ya. Gavrilova ◽  
Nadezhda E. Volkova ◽  
Tatyana V. Aksenova
Keyword(s):  
Crystal Structure ◽  
Oxygen Nonstoichiometry ◽  
Image Position

Abstract

The crystal structure, oxygen nonstoichiometry and chemical stability of Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF)

2014 ◽  
Vol 16 (16) ◽  
pp. 7307 ◽  
Author(s):  
Fang Wang ◽  
Takashi Nakamura ◽  
Keiji Yashiro ◽  
Junichiro Mizusaki ◽  
Koji Amezawa
Keyword(s):  
Crystal Structure ◽  
Chemical Stability ◽  
Oxygen Nonstoichiometry

INVESTIGATION OF GdBaCo2-xFexO5.5-δ AS A CATHODE MATERIAL FOR INTERMEDIATE TEMPERATURE SOLID OXIDE FUEL CELLS

2011 ◽  
Vol 04 (02) ◽  
pp. 157-160 ◽  
Author(s):  
ANDRZEJ KULKA ◽  
YANG HU ◽  
GUILHEM DEZANNEAU ◽  
JANINA MOLENDA
Keyword(s):  
Crystal Structure ◽  
Electrical Conductivity ◽  
Solid Oxide Fuel Cells ◽  
Oxygen Nonstoichiometry ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Layered Perovskite ◽  
Oxide Fuel ◽  
Perovskite Materials ◽  
And Performance

In this work, we present an evaluation of the layered perovskite materials with chemical composition GdBaCo 2-x Fe x O 5.5-δ (x = 0.0, 0.3, 0.6) as a cathode materials for intermediate temperature solid oxide fuel cell (IT-SOFC). We first present results concerning their crystal structure and oxygen nonstoichiometry, and then give results concerning their electrical conductivity and performance in button-type SOFCs.

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