METAL OXIDE NANOSTRUCTURE-BASED GAS SENSOR FOR CARBON DIOXIDE DETECTION

被引:2
|
作者
Gerbreders, V. [1 ]
Krasovska, M. [1 ]
Mihailova, I. [1 ]
Kostjukevics, J. [1 ]
Sledevskis, E. [1 ]
Ogurcovs, A. [1 ]
Gerbreders, A. [1 ]
Bulanovs, A. [1 ]
机构
[1] Daugavpils Univ, Inst Life Sci & Technol, 1 Parades Str, LV-5401 Daugavpils, Latvia
关键词
Cobalt oxide; gas sensors; metal oxides; nanowires; ZNO NANOSTRUCTURES; ROOM-TEMPERATURE; HYDROTHERMAL SYNTHESIS; SENSING PROPERTIES; AIR-POLLUTION; SENSITIVITY; MORPHOLOGY; OXYGEN;
D O I
10.2478/lpts-2021-0036
中图分类号
O59 [应用物理学];
学科分类号
摘要
To increase the sensitivity and efficiency of a gas sensor, nanostructured ZnO and Co3O4 layers were obtained by hydrothermal synthesis directly on the electrode surface, eliminating the use of binders. Scanning electron microscope images showed that the resulting nanostructured coatings were characterised by good adhesion to the surface and high porosity, which opened up the possibility of their further use in the process of developing a gas sensor. The efficiency of the obtained nanostructured coatings and their sensitivity at room temperature to various concentrations of CO2 were determined. The resistance curves of the samples were obtained as a function of gas concentration in the chamber, for Co3O4 and ZnO nanostructures.
引用
收藏
页码:15 / 26
页数:12
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