Surface kinetics of oxygen incorporation into SrTiO3

被引：72

作者：

Leonhardt, M ^{[1
]}

De Souza, RA ^{[1
]}

Claus, J ^{[1
]}

Maier, J ^{[1
]}

机构：

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

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2002年 / 149卷 / 02期

关键词：

D O I：

10.1149/1.1430723

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Effective surface rate constants for oxygen incorporation have been determined for single-crystal Fe-doped SrTiO3 from chemical relaxation experiments, by in situ, spatially resolved optical absorption spectroscopy, and from tracer exchange experiments, by subsequent secondary ion mass spectrometry analysis. Experiments were carried out as a function of temperature, oxygen partial pressure, and dopant concentration. The effect of various metal films (Pt, Ag, Cr) and metal oxide films (YBa2Cu3O7-delta and La0.8Sr0.2CoO3-delta) on the surface reaction kinetics was also investigated. The implications of the results with regard to the mechanisms of chemical and tracer incorporation into SrTiO3 are discussed. (C) 2002 The Electrochemical Society.

引用

页码：J19 / J26

页数：8

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