Ceria-based gas sensors

被引:109
作者
Stefanik, TS [1 ]
Tuller, HL [1 ]
机构
[1] MIT, Dept Mat Sci & Engn, Crystal Phys & Elect Lab, Cambridge, MA 02139 USA
基金
美国国家科学基金会;
关键词
CeO2; defects; electrical conductivity; sensors;
D O I
10.1016/S0955-2219(01)00152-2
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
The electrical conductivity of PrxCe1-xO2-delta (PCO) with x less than or equal to0.05 was examined as functions of praseodymium content (x), oxygen partial pressure and temperature and a defect model based on multiple oxidation states of Pr was found to be consistent with the data. These results are used to examine PCOs potential as an active film in gravimetric sensors. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1967 / 1970
页数:4
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