RT Journal Article
T1 Complex modulation of the crystal structure of a layered perovskite. A promising solid-oxide-fuelcell cathode
A1 Martínez de Irujo Labalde, Xabier
A1 Muñoz Gil, Daniel
A1 Urones Garrote, Esteban
A1 Ávila Brande, David
A1 García Martín, Susana
AB Layered-type perovskites have been the focus of research in the last few years due to their outstanding properties as solid oxide fuel cell oxygen electrodes. The synthesis of a new (GdBa)0.8Ca0.4Co0.6Fe1.4O6-d layered perovskite as a single phase as well as the crystal structure determination and catalytic activity for oxygen reduction is reported. Highly advanced methods of transmission electron microscopy have been used for structure determination at atomic resolution. The oxide shows a complex modulation of the crystal structure associated with layered-type ordering of the Gd, Ba and Ca atoms in combination with formation of different coordination polyhedra of the Fe and Co atoms. Location of the anion vacancies within particular highly ion-conducting layers of the crystal structure has been achieved by phase image reconstruction. This material exhibits excellent electrochemical behaviour and thermal stability for use as an air electrode in IT-SOFCs.
PB Royal Society of Chemistry
SN 2050-7488
YR 2016
FD 2016
LK https://hdl.handle.net/20.500.14352/94283
UL https://hdl.handle.net/20.500.14352/94283
LA eng
NO Martínez De Irujo-Labalde, Xabier, et al. «Complex Modulation of the Crystal Structure of a Layered Perovskite. A Promising Solid-Oxide-Fuel-Cell Cathode». Journal of Materials Chemistry A, vol. 4, n.o 26, 2016, pp. 10241-47. https://doi.org/10.1039/C6TA03307E.
NO Ministerio de Economía y Competitividad (España)
DS Docta Complutense
RD 25 dic 2025