Characterization of chemical composition and electronic structure of Pt/YSZ interfaces by analytical transmission electron microscopy

被引：12

作者：

Srot, V. ^{[1
]}

Watanabe, M. ^{[2
]}

Scheu, C. ^{[3
]}

van Aken, P. A. ^{[1
]}

Salzberger, U. ^{[1
]}

Luerssen, B. ^{[4
]}

Janek, J. ^{[4
]}

Ruehle, M. ^{[1
]}

机构：

[1] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

[2] Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA

[3] Univ Munich, Dept Chem, D-81377 Munich, Germany

[4] Univ Giessen, Inst Phys Chem, D-35392 Giessen, Germany

来源：

SOLID STATE IONICS | 2010年 / 181卷 / 35-36期

关键词：

X-ray energy dispersive spectroscopy; Electron energy-loss spectroscopy; Electron energy-loss near edge structure; zeta-factor method; Spatial difference technique; Ab-initio multiple scattering calculations; ENERGY-LOSS SPECTROSCOPY; NEAR-EDGE STRUCTURE; METAL-CERAMIC INTERFACES; RESOLUTION; EELS; PROGRESS; OXIDES; SHIFTS; LEVEL; ELNES;

D O I：

10.1016/j.ssi.2010.08.026

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Platinum/yttria stabilized zirconia (Pt/YSZ) interfaces with two different orientation relationships were characterized using advanced analytical transmission electron microscopy methods. Quantitative X-ray energy dispersive spectroscopy (XEDS) was performed by the recently developed zeta-factor method. Neither interdiffusion nor segregation was detected across the Pt/YSZ interfaces of both orientation conditions within the resolution limit of the technique. The interface specific components of the electron energy-loss near-edge structures (EWES) were extracted by employing the spatial difference technique. Features of the O-K EWES at the interface are distinctly different from that at bulk YSZ indicating Pt-O bonding. The experimentally observed changes in the O-K ELNES are in good agreement with the results of ab-initio full multiple scattering calculation, based on structure modeling at the interfaces. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1616 / 1622

页数：7

共 55 条

[31] Electron energy-loss near-edge shape as a probe to investigate the stabilization of yttria-stabilized zirconia [J].