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Vol. 228, Issue 12, December 2018, pp. 1-16




Semiconductor Gas Sensors Made from Metal Oxides Functionalized with Carbon Nanotubes


Yerevan State University, 1 A. Manoukian St., Yerevan, 0025, Republic of Armenia
Tel.: 374 60 710315, fax: 374 60 710355

E-mail: kisahar@ysu.am


Received: 15 October 2018 /Accepted: 30 November 2018 /Published: 31 December 2018

Digital Sensors and Sensor Sysstems


Abstract: Properties of semiconductor gas sensors made from metal oxide functionalized with carbon nanotubes are analyzed. An information about methods of manufacture of such nanomaterial and measurement setup are reported. It is shown that the decoration of such metal oxide sensors allow to detect H2, H2S, CH4, CO, O3, C6H6, NH3, NO2, C2H5OH, acetone and methanol. Hydrogen peroxide vapor SnO2- MWCNTs sensors are investigated. Results of study of the propylene glycol, methylformamide and formaldehyde SnO2-MWCNTs nanosensors are reported.


Keywords: Nanomaterial, Multiwall carbon nanotube, Metal oxide, Functionalization, Gas sensor, Sensitivity, Gas, Hydrogen peroxide, Propylene glycol, Methylformamide, Formaldehyde.


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