Alina Skorynina

Alina Skorynina
Southern Federal University | sfedu · The Smart Materials Research Institute

MSc

About

19
Publications
1,168
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64
Citations
Additional affiliations
October 2018 - present
Southern Federal University
Position
  • PhD Student
Education
September 2016 - August 2018
Southern Federal University
Field of study
  • Physics
September 2012 - July 2016
Southern Federal University
Field of study
  • Technical Physics

Publications

Publications (19)
Article
Modern implants are often based on silicon-doped hydroxyapatite for enhanced biological activity. Such materials still have drawbacks, such as high probability of bacterial infections on their surface during surgery. In this work, we obtained germanium-substituted calcium phosphates, which are isostructural to silicon-substituted hydroxyapatite and...
Article
Evolution of surface and bulk palladium oxides in supported palladium nanoparticles was followed in situ using X-ray absorption spectroscopy. The surface oxide was found to be easily reducible in hydrogen at room temperature, while removal of bulk oxide required heating in hydrogen above 100 °C. We also found that the co-presence of hydrogen and ox...
Article
The paper discusses technological methods for obtaining a luminescent material from phosphogypsum. The obtained materials were characterized using X-ray phase analysis, X-ray fluorescence analysis, and electron microscopy. The elemental composition of the samples was determined using a laboratory micro-fluorimeter. In the course of the study, the t...
Article
Full-text available
Adsorption of ethylene on palladium, a key step in various catalytic reactions, may result in a variety of surface-adsorbed species and formation of palladium carbides, especially under industrially relevant pressures and temperatures. Therefore, the application of both surface and bulk sensitive techniques under reaction conditions is important fo...
Article
Full-text available
The formation of palladium hydrides is a well-known phenomenon, observed for both bulk and nanosized samples. The kinetics of hydrogen adsorption/desorption strongly depends on the particle size and shape, as well as the type of support and/or coating of the particles. In addition, the structural properties of hydride phases and their distribution...
Article
In modern Russia and the CIS countries, phosphogypsum waste is an urgent environmental problem. This product is obtained in the production of phosphoric acid and is a large tonnage of low-recyclable waste. According to open sources, it is processed 20 times less than it is produced. Attempts to use it in cement production, in construction, in agric...
Article
Full-text available
We report a series of Pd K-edge and Pt L3-edge X-ray absorption spectra (XAS) collected in situ during thermal treatment of functionalized UiO-67-Pd and UiO-67-Pt metal-organic frameworks in inert and reducing atmospheres. We present raw synchrotron data from three subsequent experiments at different beamlines, normalized XAS spectra and k2-weighte...
Article
Functionalization of metal-organic frameworks (MOFs) with noble metals is a promising way for producing new versatile catalysts that will combine the outstanding porosity and specific surface area of MOFs with high catalytic activity of metals. Here, we present a comparative study of two metal-organic frameworks with UiO-67 topology, functionalized...
Article
We present a detailed extended X-ray absorption fine structure (EXAFS) characterization of the formation process of palladium nanoparticles (NPs) inside UiO-67 metal-organic framework (MOF). Starting from the initial UiO-67 structure with 10% of PdCl2bpydc moieties with grafted Pd ions replacing standard 4,4′-biphenyldicarboxylate linkers, we follo...
Article
Palladium-based catalysts are widely applied for the selective hydrogenation of acetylene in acetylene/ethylene mixtures. Under reaction conditions, palladium hydride or carbide phases can be formed, which change the catalytic properties of material. In the current work, we focus on the process of carbide phase formation in supported palladium nano...
Article
Full-text available
The size and shape distribution of metal nanoparticles (NPs) are important parameters that need to be tuned in order to achieve desired properties of materials for practical applications. In the current work, we present the synthesis of palladium NPs supported on silica by three different methods, applying reduction by sodium borohydride, hydrazine...
Thesis
Full-text available
The identification of the equilibrium shape of a crystal (or a negative crystal [1], i.e., an inclusion in a crystal sample) by experimental means is important to obtain information on anisotropy of interfacial surface energy. However, the experimental determination of the equilibrium crystal shape is nontrivial problem. In most cases the shapes of...

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