ZnO Nanocomposite Film-Based Sensors for Ethanol in Air

被引：9
|
作者：
Belysheva, T. V. [1 ]
Spiridonova, E. Yu. [1 ,2 ]
Ikim, M. I. [1 ]
Gerasimov, G. N. [1 ]
Gromov, V. F. [1 ]
Trakhtenberg, L. I. [1 ]
机构：
[1] Russian Acad Sci, Semenov Inst Chem Phys, Moscow 119991, Russia
[2] Karpov Inst Phys Chem, Moscow 105064, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B | 2020年 / 14卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
nanostructured systems; metal oxide; sensor; ethanol vapor; sensor response; selectivity; GAS; NANORODS;
D O I：
10.1134/S1990793120020190
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The efficiency of nanostructured 85% ZnO-15% In2O3 and 85% ZnO-12% In2O3-3% Fe2O3 systems in the detection of ethanol vapor at concentrations of 25 to 104 ppm in air is studied. Under experimental conditions, both systems are characterized by high stability and sensitivity that almost do not change in the presence of water vapor. At 370 degrees C, the response time does not exceed 5 s for both sensor systems. In the entire ethanol concentration range studied, the sensitivity of the three-component sensor system is higher than the sensitivity of the two-component system. The sensor response of the three-component system to 38 ppm ethanol was 12 at 370 degrees C. The reasons governing the effect of the composition of a metal oxide composite on its sensor activity are discussed.
引用
收藏
页码：298 / 301
页数：4
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