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Realization of graphene oxide nanosheets as a potential mass-type gas sensor for detecting NO2, SO2, CO, and NH3

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Abstract Graphene oxide (GO) is an excellent suitable material as a gas-sensing layer due to its adsorption ability towards toxic gas molecules. In this work, GO nanosheets (GO-NSs) were employed… Click to show full abstract

Abstract Graphene oxide (GO) is an excellent suitable material as a gas-sensing layer due to its adsorption ability towards toxic gas molecules. In this work, GO nanosheets (GO-NSs) were employed in a mass-type toxic gas sensor using a quartz crystal microbalance (QCM) transducer. The sensor was prepared by spraying the GO-NS suspension on the working electrode surface of the QCM. The gas-sensing properties of the sensor were examined with various concentrations of toxic gases, including NO2, SO2, CO, and NH3. The results demonstrated that the adsorption potential of the prepared GO-NSs makes them a promising candidate for the sensing layer of mass-type gas sensors to detect toxic gases.

Keywords: gas; mass type; graphene oxide; sensor

Journal Title: Materials today communications
Year Published: 2020

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