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Registration Number

0220U102828, 0118U006576 , R & D reports

Title

3D hybrid nanostructures based on 2D nanomaterials (graphene oxide, MoS2): making, characterization and use in sensor devices

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Head

HLAMAZDA Oleksandr Yu,

Registration Date

09-06-2020

Organization

B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine

Description

 The 3D hybrid nanostructures based on van der Waals materials: reduced form of graphene oxide (r-GO), molybdenum disulfide (MoS2) and their complexes with nicotine and nicotinic acid in aqueous medium were created. We have found the peculiarities of 3D nanostructures, obtained the energy characteristics and studied the interaction between the individual components of hybrid 3D nanostructures and biologically important molecules: nicotine and nicotinic acid, O2, NH3, H2, H2O by using quantum-mechanical calculations and computer simulations. The analysis of the experimental spectral data has confirmed the theoretical calculations demonstrating the significant energy of interaction between organic molecules (nicotine and nicotinic acid) and components of 3D nanohybrids supporting the formation of complexes in the aqueous solution. The influence of various gases (NO2, H2, NH3), humidity, nicotine, and also the gas exhaled by a person on the electrical conductivity of 3D nanohybrid thin films was investigated. It is shown that the impulse effect of NO2, exhaled gas or humidity of nanohybrid films have a reversible effect on the electrical conductivity and the properties of the films are restored unlike the rest of the gases.

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