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Flexible SnO2❬Co❭/MWCNT Sensor for Detection Low Concentrations of Hydrogen Peroxide Vapors

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Journal of Contemporary Physics (Armenian Academy of Sciences) Aims and scope

Abstract

Flexible gas sensors based on the SnO2❬Co❭/MWCNT (multi-wall carbon nanotubes) structure have been fabricated. The results of studies of the gas-sensitive characteristics of the manufactured SnO2❬Co❭/MWCNT sensor under the influence of hydrogen peroxide vapor at different operating temperatures are presented. The thickness of the sensitive layer of the sensor was measured to be ~75 nm. The investigated sensor showed sensitivity to hydrogen peroxide vapor even at room temperature. The resistance of the sensitive layer increases more than 22 times under the influence of hydrogen peroxide vapor with a concentration of 4.4 ppm at an operating temperature of 25°C. The maximum value of the sensitivity to the concentration of hydrogen peroxide vapor was observed at an operating temperature of 75°C, at which an increase in the sensor resistance by ~50 times was recorded.

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Funding

The work was supported by the Science Committee of RA, in the frames of the research project No. 21SCG-2J001.

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Authors and Affiliations

  1. Yerevan State University, Yerevan, Armenia

    M. S. Aleksanyan, A. G. Sayunts, G. H. Shahkhatuni, Z. G. Simonyan, V. M. Aroutiounian & G. E. Shahnazaryan

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  1. M. S. Aleksanyan
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  2. A. G. Sayunts
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  3. G. H. Shahkhatuni
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  4. Z. G. Simonyan
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  5. V. M. Aroutiounian
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  6. G. E. Shahnazaryan
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Corresponding author

Correspondence to M. S. Aleksanyan.

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Additional information

Translated by V.M. Aroutiounian

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Aleksanyan, M.S., Sayunts, A.G., Shahkhatuni, G.H. et al. Flexible SnO2❬Co❭/MWCNT Sensor for Detection Low Concentrations of Hydrogen Peroxide Vapors. J. Contemp. Phys. 57, 133–139 (2022). https://doi.org/10.3103/S1068337222020050

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  • DOI: https://doi.org/10.3103/S1068337222020050

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