Gas sensitivity of Zn doped alpha-Fe2O3(SO42-, Sn, Zn) to carbon monoxide

被引：16

作者：

He, FJ

Yao, T

Qu, BD

Han, JS

Yu, AB

机构：

[1] UNIV NEW S WALES,SCH MAT SCI & ENGN,SYDNEY,NSW 2052,AUSTRALIA

[2] SHANDONG UNIV,DEPT PHYS,JINAN 250100,SHANDONG,PEOPLES R CHINA

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1997年 / 40卷 / 2-3期

关键词：

alpha-Fe2O3-based sensor; gas sensitivity; CO gas; doping of Zn and Sn;

D O I：

10.1016/S0925-4005(97)80259-6

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

It is shown that the doping of Zn and Sn can improve the gas sensitivity of alpha-Fe2O3-based sensing material to CO. X-ray photo-electron spectroscopy analysis suggests that this is mainly due to the fact that the simultaneous doping of Zn and Sn can increase the S and hence SO42- contents in the alpha-Fe2O3(SO42-, Sn, Zn) sensing material. The results also suggest that under a given condition, the gas sensitivity of alpha-Fe2O3(SO42-, Sn, Zn) to CO can be optimised by properly adjusting the doped Zn content. (C) 1997 Elsevier Science S.A.

引用

页码：183 / 186

页数：4

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