Development of oxygen-permeable ceramic membranes for NOx-sensors

被引：10
|
作者：
Schulte, T
Waser, R
Römer, EWJ
Bouwmeester, HJM
Nigge, U
Wiemhöfer, HD
机构：
[1] Robert Bosch GmbH, Corp Res & Dev, D-70049 Stuttgart, Germany
[2] Rhein Westfal TH Aachen, Inst Werkstoffe Elektrotech, Aachen, Germany
[3] Univ Twente, Lab Inorgan Chem Mat Sci & Catalysis, Enschede, Netherlands
[4] Univ Munster, Inst Anorgan Chem, D-4400 Munster, Germany
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2001年 / 21卷 / 10-11期
关键词：
composites; ionic conductivity; membranes; perovskites; sensors;
D O I：
10.1016/S0955-2219(01)00153-4
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Several mixed ionic-electronic conductors such as Gd1-xCaxCoO3-d (GCC) and La1-xSrxCo1-yCuyO3-d as well as composite materials like Gd1-xCaxCoO3-d / Ce1-xGdxO2-d (GCCCGO) have been investigated with respect to their use as highly selective membranes within a new amperometric sensor system. Materials characterisation was carried out concerning surface reactions of the membranes, thermal expansion, and electronic as well as oxygen permeation properties. Taking advantage of the effective medium theory, the optimum component-ratio for the composit ceramic GCCCGO with respect to permeation behaviour has been predicted. Based on experimental and modelling data, the overall performance of a system using a GCCCGO membrane has been determined. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1971 / 1975
页数：5
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