The effect of oxygen vacancies concentration to the gas-sensing properties of tin dioxide-doped Sm

被引：37

作者：

Wang, D ^{[1
]}

Jin, J ^{[1
]}

Xia, DG ^{[1
]}

Ye, Q ^{[1
]}

Long, J ^{[1
]}

机构：

[1] Beijing Polytech Univ, Dept Chem & Environm Engn, Res Off Chem Sensors, Beijing 100022, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2000年 / 66卷 / 1-3期

关键词：

tin dioxide; oxygen vacancy concentration; gas-sensing property;

D O I：

10.1016/S0925-4005(00)00374-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

SnO2 doped with rare earth Sm, containing different amount of oxygen vacancies, was prepared by hydrogen reduction method, and characterized by means of X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The study of gas-sensing properties of the sample was carried out. The tested gas was n-C6H14, H-2, C2H5OH, C6H6 and CO, respectively. Experimental results showed that the specific surface area of sample increases with the amount of oxygen vacancies, and the gas-sensing properties of Sm/SnO2 vary with the amount of oxygen vacancies, therefore, it is possible to improve gas-sensing properties of doped SnO2 by controlling its oxygen vacancy. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：260 / 262

页数：3