RT Journal Article
T1 Ordering effects in the crystal structure and electrochemical properties of the Gd0.5Ba0.5Mn0.5Fe0.5O3−δ perovskite
A1 Muñoz Gil, Daniel
A1 Ávila Brande, David
A1 Urones Garrote, Esteban
A1 García Martín, Susana
AB Layered-type ordering and oxygen vacancies ordering are revealed in GdBaMnFeO6−δ perovskite. Selected area electron diffraction and high-resolution transmission electron microscopy results indicate a modulation of the crystal structure. Ba and Gd ordering in (001)p layers is confirmed by high angle annular dark field scanning transmission electron microscopy and electron energy-loss spectroscopy. These techniques also revealed formation of layer-stacking defects in the crystals. Direct imaging of the oxygen sublattice is obtained by phase image reconstruction. Location of the oxygen vacancies in the (GdO)x layers is achieved by analysis of the intensity of the averaged phase image. Physical properties of the GdBaMnFeO6−δ perovskite, are likely to be strongly affected by its ordering effects and crystal microstructure. In this sense, layered-type GdBaMnFeO6−δ perovskite show better electrochemical properties as cathodes in SOFCs than ion disordered Gd0.5Ba0.5Mn0.5Fe0.5O3−δ perovskite.
PB Royal Society of Chemistry
SN 1477-9226
YR 2015
FD 2015
LK https://hdl.handle.net/20.500.14352/94341
UL https://hdl.handle.net/20.500.14352/94341
LA eng
NO Muñoz-Gil, Daniel, et al. «Ordering Effects in the Crystal Structure and Electrochemical Properties of the Gd 0.5 Ba 0.5 Mn 0.5 Fe 0.5 O 3−δ Perovskite». Dalton Transactions, vol. 44, n.o 23, 2015, pp. 10867-74.  https://doi.org/10.1039/C4DT03873H.
NO Ministerio de Economía y Competitividad (España)
DS Docta Complutense
RD 8 abr 2025