Surface Composition of Layered Ruddlesden-Popper Lan+1NinO3n+1 (n = 1, 2 and 3) Epitaxial Films
Surface Composition of Layered Ruddlesden-Popper Lan+1NinO3n+1 (n = 1, 2 and 3) Epitaxial Films
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层状 Ruddlesden-Popper Lan 1NinO3n 1 (n = 1、2 和 3) 外延膜的表面成分
DOI：
10.1149/06602.0089ecst
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
S.J. Skinner
中科院分区：
文献类型：
--
作者：
K.-T. Wu;H. Tellez;J. Druce;M. Burriel;T. Ishihara;J.A. Kilner;S.J. Skinner
层状Ruddlesden-Popper（RP）型氧化物，分子式为Lan+1 NinO 3 n + 1（n= 1，2和3），最近被建议作为IT-SOFC阴极的候选物。氧表面交换活性受表面组成和原子表面结构的强烈影响，分子氧的吸附和解离发生在表面组成和原子表面结构中。因此，有必要了解阴极材料的表面和近表面化学成分。在这项工作中，在RP系列外延膜的表面和近表面的组成进行了系统的研究，使用低能离子散射（LEIS）。
Layered Ruddlesden-Popper (RP) type oxides, formulated Lan+ 1NinO3n+ 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).