Surface kinetics of oxygen incorporation into SrTiO3
Surface kinetics of oxygen incorporation into SrTiO3
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DOI：
10.1149/1.1430723
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发表时间：
2002-02-01
影响因子：
3.9
通讯作者：
Maier, J
中科院分区：
文献类型：
--
作者：
Leonhardt, M;De Souza, RA;Maier, J
单晶 Fe 掺杂 SrTiO3 的氧掺入有效表面速率常数已通过化学弛豫实验、原位空间分辨光学吸收光谱以及示踪剂交换实验和随后的二次离子质谱分析确定。实验根据温度、氧分压和掺杂剂浓度进行。还研究了各种金属膜（Pt、Ag、Cr）和金属氧化物膜（YBa2Cu3O7-delta 和 La0.8Sr0.2CoO3-delta）对表面反应动力学的影响。讨论了结果对化学和示踪剂掺入 SrTiO3 的机制的影响。 (C) 2002 年电化学协会。
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.