Enhancement of oxygen surface exchange kinetics of SrTiO3 by alkaline earth metal oxides

被引:26
作者
Argirusis, C
Wagner, S
Menesklou, W
Warnke, C
Damjanovic, T
Borchardt, G
Ivers-Tiffée, E
机构
[1] Tech Univ Clausthal, Inst Met, D-38678 Clausthal Zellerfeld, Germany
[2] Univ Karlsruhe, Inst Werkstoffe Elektrotech, D-76131 Karlsruhe, Germany
关键词
D O I
10.1039/b510834a
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
The oxygen incorporation reaction in undoped SrTiO3 was investigated by electrical measurements (pressure modulation technique) in the temperature range from 650-920 degrees C and by means of tracer exchange experiments in the temperature range from 458-600 degrees C. The surface of the undoped SrTiO3 single crystals was modified by alkaline earth metal compounds leading to a tremendous enhancement of the effective surface exchange rate for oxygen incorporation as compared to the uncoated surface.
引用
收藏
页码:3523 / 3525
页数:3
相关论文
共 10 条
[1]   Tracer diffusion and chemical diffusion of oxygen in acceptor doped SrTiO3 [J].
Claus, J ;
Leonhardt, M ;
Maier, J .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2000, 61 (08) :1199-1207
[2]  
Crank J., 1990, MATH DIFFUSION
[3]   Principles of solid state oxygen sensors for lean combustion gas control [J].
Ivers-Tiffée, E ;
Härdtl, KH ;
Menesklou, W ;
Riegel, J .
ELECTROCHIMICA ACTA, 2001, 47 (05) :807-814
[4]   Surface kinetics of oxygen incorporation into SrTiO3 [J].
Leonhardt, M ;
De Souza, RA ;
Claus, J ;
Maier, J .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (02) :J19-J26
[5]   High temperature oxygen sensors based on doped SrTiO3 [J].
Menesklou, W ;
Schreiner, HJ ;
Härdtl, KH ;
Ivers-Tiffée, E .
SENSORS AND ACTUATORS B-CHEMICAL, 1999, 59 (2-3) :184-189
[6]   Oxygen incorporation into Fe-doped SrTiO3:: Mechanistic interpretation of the surface reaction [J].
Merkle, R ;
Maier, J .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2002, 4 (17) :4140-4148
[7]  
Merkle R, 2001, ANGEW CHEM INT EDIT, V40, P2126, DOI 10.1002/1521-3773(20010601)40:11<2126::AID-ANIE2126>3.0.CO
[8]  
2-K
[9]   KINETIC-BEHAVIOR OF RESISTIVE OXYGEN SENSORS [J].
TRAGUT, C ;
HARDTL, KH .
SENSORS AND ACTUATORS B-CHEMICAL, 1991, 4 (3-4) :425-429
[10]   Kinetics of oxygen incorporation into SrTiO3 investigated by frequency-domain analysis [J].
Wagner, SF ;
Menesklou, W ;
Schneider, T ;
Ivers-Tiffée, E .
JOURNAL OF ELECTROCERAMICS, 2004, 13 (1-3) :645-651