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Full-Text Articles in Physical Sciences and Mathematics

Evolution Of Structural And Magnetic Parameters Of Nickel Nanotubes Under Irradiation Of Fe7+ Ions, A. Shumskaya, E. Kaniukov, D. Shlimas, M. Zdorovets, A. Kozlovskiy Jun 2020

Evolution Of Structural And Magnetic Parameters Of Nickel Nanotubes Under Irradiation Of Fe7+ Ions, A. Shumskaya, E. Kaniukov, D. Shlimas, M. Zdorovets, A. Kozlovskiy

Eurasian Journal of Physics and Functional Materials

This work is devoted to investigations of nickel nanotubes behavior under influence of swift heavy ion irradiation. High-energy irradiation initiates damage process inside nanostructures and can cause the appearance of new phases with interesting properties. To understand the basic principles of the evolution of structural and magnetic parameters of nanostructures under the influence of high-energy processes, detailed study of nickel nanotubes irradiated with various fluences of Fe 7+ ions was carried out.


The Study Of The Applicability Of Invar Nanostructures For The Reduction Of P-Nitrophenyl Compounds, D. B. Borgekov, M. V. Zdorovets, D. I. Shlimas, A. L. Kozlovskiy, N. A. Khlebnikov, E. Yu. Kaniukov Jun 2020

The Study Of The Applicability Of Invar Nanostructures For The Reduction Of P-Nitrophenyl Compounds, D. B. Borgekov, M. V. Zdorovets, D. I. Shlimas, A. L. Kozlovskiy, N. A. Khlebnikov, E. Yu. Kaniukov

Eurasian Journal of Physics and Functional Materials

The results of the study of the phase composition of iron-nickel nanostructures susceptible to electron irradiation on the catalytic reduction of p-nitrophenyl compounds are presented. In the course of the studies, it was found that the nanostructures irradiated with a dose of 250 kGy, which are characterized by the presence of two phases, with the domination of the FeNi phase, have the highest recovery rate. In this case, nanostructures irradiated with a dose of 250 kGy, which showed the highest catalytic reaction rate, have a fairly short lifetime, which may be due to the rapid degradation of the surface of …


Observation Of Reduced Thermal Conductivity In A Metal-Organic Framework Due To The Presence Of Adsorbates, Hasan Babaei, Mallory E. Decoster, Minyoung Jeong, Zeinab M. Hassan, Timur Islamoglu, Helmut Baumgart, Alan J.H. Mcgaughey, Engelbert Redel, Omar K. Farha, Patrick E. Hopkins, Jonathan A. Malen, Christopher E. Wilmer Jan 2020

Observation Of Reduced Thermal Conductivity In A Metal-Organic Framework Due To The Presence Of Adsorbates, Hasan Babaei, Mallory E. Decoster, Minyoung Jeong, Zeinab M. Hassan, Timur Islamoglu, Helmut Baumgart, Alan J.H. Mcgaughey, Engelbert Redel, Omar K. Farha, Patrick E. Hopkins, Jonathan A. Malen, Christopher E. Wilmer

Electrical & Computer Engineering Faculty Publications

Whether the presence of adsorbates increases or decreases thermal conductivity in metal-organic frameworks (MOFs) has been an open question. Here we report observations of thermal transport in the metal-organic framework HKUST-1 in the presence of various liquid adsorbates: water, methanol, and ethanol. Experimental thermoreflectance measurements were performed on single crystals and thin films, and theoretical predictions were made using molecular dynamics simulations. We find that the thermal conductivity of HKUST-1 decreases by 40 – 80% depending on the adsorbate, a result that cannot be explained by effective medium approximations. Our findings demonstrate that adsorbates introduce additional phonon scattering in HKUST-1, …