Surface Composition of Layered Ruddlesden-Popper Lan+1NinO3n+1 (n = 1, 2 and 3) Epitaxial Films
Author(s) -
KuanTing Wu,
Helena Téllez,
John Druce,
Mónica Burriel,
Tatsumi Ishihara,
John A. Kilner,
Stephen J. Skinner
Publication year - 2015
Publication title -
ecs transactions
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.235
H-Index - 52
eISSN - 1938-6737
pISSN - 1938-5862
DOI - 10.1149/06602.0089ecst
Subject(s) - epitaxy , adsorption , materials science , dissociation (chemistry) , oxygen , cathode , low energy ion scattering , surface (topology) , scattering , composition (language) , chemical composition , analytical chemistry (journal) , crystallography , ion , chemistry , nanotechnology , layer (electronics) , physics , optics , linguistics , organic chemistry , philosophy , chromatography , geometry , mathematics
© The Electrochemical Society.Layered Ruddlesden-Popper (RP) type oxides, formulated Lan+1 Nin O3n+1 (n = 1, 2 and 3), have recently been suggested as candidates for IT-SOFC cathodes. The oxygen surface exchange activity is strongly influenced by the surface composition and atomic surface structure where the adsorption and dissociation of molecular oxygen take place. It is therefore necessary to understand the surface and near-surface chemical compositions of the cathode materials. In this work, the surface and near-surface composition of epitaxial films in the RP series was systematically investigated using low-energy ion scattering (LEIS)
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