Gas-sensitive composition of tungsten oxide with multiwall carbon nanotubes
Abstract
Multiwall carbon nanotubes (MWCNTs), exhibiting high gas adsorption activity, have been prepared in the high voltage discharge plasma under atmospheric pressure from a mixture of hydrocarbons (methane, propane) and air. The structural characteristics of nanotubes have been studied by TEM. Composition WO3 - MWNTs, prepared by sol-gel method, is of interest to create selective sensitive detectors of combustible gases. The greatest sensitivity to propane (≤ 500 %) has been observed at the substrate temperature below 200 °C, whereas high sensitivity to NO2 (≤300 %) has been observed at higher temperatures (T - 240 °C and more).
About the Authors
Y. S. Haiduk
Belarusian State University
Belarus
Belarus
A. A. Savitsky
Belarusian State University
Belarus
Belarus
D. A. Strizhakov
Institute of Chemistry of New Materials of National Academy of Sciences of Belarus
Belarus
Belarus
O. G. Reutskaya
Research Institute of radiomaterials
Belarus
Belarus
I. A. Taratyn
Research Institute of radiomaterials
Belarus
Belarus
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