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Creation of new systems based on carbon nanomaterials


Work number - M 31 FILED

Authors: Kirian I.M., MykhailovaH.Yu.

The cycle of works is nominated by Scientific council of G. V. Kurdyumov Institute for Metal Physics of the N.A.S. of Ukraine.

 

The study of the local structure of amorphous and disordered carbon nanomaterials with the definition of quantitative characteristics of their topological order, ascertainment of change mechanisms of properties of carbon nanotubes (CNTs) and systems based on them as a result of quantum size effects, the transport of electrons through the graphene layer and the irradiation and their synthesis is an important and actual task of modern physics and material science.

It is shown, that globular amorphous carbon materials with graphite-like type of short-range order are synthesized using propane-butane and acetylene as a working medium. The analysis of the arrangement of atoms in the model configurations, obtained by reverse Monte Carlo (RMC) method was performed. The quantitative characteristics of the local order by Voronoi-Delaunay tesselation were calculated. The structural transition in fullerene C60 from crystalline to amorphous state at high-temperature annealing and ball-milling processing was reconstructed by the RMC method. Characteristics of topological order in the arrangement of atoms were established.

Promising nanosystems for utilization in electrical and power engineering based on carbon nanomaterials including carbon nanotubes (CNT) in the range of concentrations from 0 to 100 wt.% are created. The obtained composites possess high electrical and mechanical characteristics that ensure an adequate level of both strength and light weight of products. It was established that radiation exposure can be a technological tool for modification of carbon nanomaterials. It is shown that obtained with use of modified carbon nanotubes materials are efficient converters of solar energy into electricity and can be utilized  in environmentally clean alternative energy.

The results of research are published in 27 publications, 14 of that are published in the international journals referred by the Scopus database. One patent of Ukraine is obtained. According to the Scopus database total citation index is h = 3. Authors’ works were cited in over than 20 academic and applied scientific journals. The total number of authors’ publications are 40.

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