Studying of gas sensing properties of graphene oxide Langmuir-Schaeffer films
Ilya A. Gorbachev, Institute of Radioengineering and Electronics RAS
Andrey V. Smirnov, Institute of Radioengineering and Electronics RAS
Abstract
An important area in the modern science is a development of new materials for adsorption of CO2 from industrial gas streams and technological emissions. Recently, unconventional carbon adsorbents such as molecular sieve active carbon materials, carbon fibers, graphene and based on them materials have a wide interest for solvation of the gas cleaning technological problems. In the present work the sensor properties of mono- and multilayered graphene oxide Langmuir-Schaeffer films to carbon dioxide were studied. The studied films are based on Langmuir monolayer of graphene oxide and mixed monolayers of graphene oxide and tin stearate were formed. The mixed Langmuir monolayers of graphene oxide and tin stearate were formed in the one technological cycle that allows to incorporate a tin stearate clusters in the graphene oxide monolayer. It is allow to create a coating selective to carbon dioxide. The morphology of the films was studied by the atomic force microscopy. A films based on mixed Langmuir monolayers have a developed morphology that promises a better gas sensitivity next to graphene oxide based films. The films chemical composition was characterized by the IR spectroscopy. The formed monolayers were transferred on the acoustic delay lines for studying by the acoustic-electronic method.
This research was funded by RUSSIAN SCIENCE FOUNDATION, grant number 22-29-20317.
Speaker
Ilya A. Gorbachev
Institute of Radioengineering and Electronics RAS
Russia
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