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Investigation of the Structural Changes and Catalytic Properties of FeNi Nanostructures as a Result of Exposure to Gamma Radiation

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dc.contributor.author Borgekov, Daryn B.
dc.contributor.author Zdorovets, Maxim V.
dc.contributor.author Shlimas, Dmitriy I.
dc.contributor.author Kozlovskiy, Artem L.
dc.date.accessioned 2024-09-16T11:05:21Z
dc.date.available 2024-09-16T11:05:21Z
dc.date.issued 2020
dc.identifier.issn 2073-4352
dc.identifier.other doi:10.3390/cryst10040254
dc.identifier.uri http://rep.enu.kz/handle/enu/16408
dc.description.abstract The paper presents the results of changes in the structural characteristics, and the degree of texturing of FeNi nanostructures close in composition to permalloy compounds as a result of directed modification by gamma radiation with an energy of 1.35 MeV and doses from 100 to 500 kGy. The choices of energy and radiation doses were due to the need to modify the structural properties, which consisted of annealing the point defects that occurred during the synthesis along the entire length of the nanotubes. The initial FeNi nanostructures were polycrystalline nanotubes of anisotropic crystallite orientation, obtained by electrochemical deposition. The study found that exposure to gamma rays led to fewer defects in the structure, and reorientation of crystallites, and at doses above 300 kGy, the presence of one selected texture direction (111) in the structure. During tests of the corrosion resistance of synthesized and modified nanostructures in a PBS solution at various temperatures, it was found that exposure to gamma rays led to a significant decrease in the rate of degradation of nanotubes and an increase in the potential life of up to 20 days. It was established that at the first stage of testing, the degradation of nanostructures is accompanied by the formation of oxide inclusions, which subsequently lead to the formation of pitting corrosion and subsequent partial or complete destruction of the nanostructures. It is shown that gamma radiation is promising not only for targeted modification of nanostructures and increasing resistance to degradation, but also for increasing the rate of catalytic reactions of the PNA-PPD type. ru
dc.language.iso en ru
dc.publisher Crystals ru
dc.relation.ispartofseries Volume 10;Issue 4
dc.subject nanostructures ru
dc.subject catalysts ru
dc.subject radiation modification ru
dc.subject structural ordering ru
dc.subject gamma radiation ru
dc.title Investigation of the Structural Changes and Catalytic Properties of FeNi Nanostructures as a Result of Exposure to Gamma Radiation ru
dc.type Article ru


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