Preparation and gas-sensitive properties of LaFe1-yCoyO3 semiconducting materials

被引：56
|
作者：
Ge, XT
Liu, YF
Liu, XQ [1 ]
机构：
[1] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
[2] Chuzhou Normal Coll, Dept Chem, Anhui 239012, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2001年 / 79卷 / 2-3期
关键词：
cobalt doping; solid solution; LaFe0.8Co0.2O3; alcohol sensor;
D O I：
10.1016/S0925-4005(01)00869-3
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this paper, the ultrafine powders of the perovskite-type solid solution LaFe1-yCoyO3 (0 less than or equal to y less than or equal to 0.40) were prepared by chemical coprecipitation. The preparation conditions, phase constituents, conductance and gas-sensing proper-ties were investigated. The results demonstrate that LaFe1-xCoyO3 is a p-type semiconducting material and it has high sensitivity and good selectivity to C2H5OH when y = 0.20. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：171 / 174
页数：4
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