Investigation of the MWCNT/SnO2 Sensor for the Detection of Acetone Vapors

IF 0.5 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Journal of Contemporary Physics (Armenian Academy of Sciences) Pub Date : 2023-06-18 DOI:10.1134/S1068337223010048

M. S. Aleksanyan, G. H. Shahkhatuni, E. A. Khachaturyan, G. E. Shahnazaryan, A. G. Sayunts, H. R. Hovhannisyan, D. A. Kananov

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Abstract

A sensor for the detection of acetone vapors based on the nanocomposite multiwalled carbon nanotubes/tin oxide (MWCNT/SnO₂) material was manufactured by the hydrothermal synthesis method. The response of the MWCNT/SnO₂ sensor toward acetone vapors from room temperature to 300°C was investigated. The gas sensing characteristics of the MWCNT/SnO₂ sensor were investigated in the presence of different concentrations of acetone vapors (400 ppb–20 ppm) at an operating temperature of 250°C. At the same temperature, the impedance characteristics of the MWCNT/SnO₂ sensor were investigated both before and after exposure to acetone vapor. An equivalent electrical circuit for the MWCNT/SnO₂ sensor structure was proposed. The presented results indicate that the MWCNT/SnO₂ structure can detect very low acetone concentrations.

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用于丙酮蒸气检测的MWCNT/SnO2传感器的研究

以多壁碳纳米管/氧化锡(MWCNT/SnO2)纳米复合材料为材料，采用水热合成法制备了丙酮气体传感器。研究了MWCNT/SnO2传感器在室温至300℃范围内对丙酮蒸气的响应。在250°C的工作温度下，研究了不同浓度丙酮蒸汽(400 ppb-20 ppm)存在下MWCNT/SnO2传感器的气敏特性。在相同温度下，研究了暴露于丙酮蒸汽前后MWCNT/SnO2传感器的阻抗特性。提出了MWCNT/SnO2传感器结构的等效电路。结果表明，MWCNT/SnO2结构可以检测极低浓度的丙酮。

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来源期刊

Journal of Contemporary Physics (Armenian Academy of Sciences) PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

66.70%

发文量

审稿时长

6-12 weeks

期刊介绍： Journal of Contemporary Physics (Armenian Academy of Sciences) is a journal that covers all fields of modern physics. It publishes significant contributions in such areas of theoretical and applied science as interaction of elementary particles at superhigh energies, elementary particle physics, charged particle interactions with matter, physics of semiconductors and semiconductor devices, physics of condensed matter, radiophysics and radioelectronics, optics and quantum electronics, quantum size effects, nanophysics, sensorics, and superconductivity.