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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Vnukova N. G., Churilov G. N., Popov Yu. M., Glushenko G. A.
Заглавие : Comparative characteristics of Sc2C2@C82 and C84 polymerization under high pressure
Коллективы : "Advanced carbon nanostructures", International conference, Физико-технический институт им. А.Ф. Иоффе РАН, Национальный исследовательский центр "Курчатовский институт", Санкт-Петербургский государственный технологический институт (технический университет), Санкт-Петербургский национальный исследовательский Академический университет имени Ж.И. Алфёрова Российской академии наук
Место публикации : 15th International Conference "Advanced carbon nanostructures": book of abstracts. - 2021. - Fullerenes. - Ст.O4-4-10. - P.195. - ISBN 978-5-93634-069-7
Примечания : Cited References: 3. - The reported study was funded by RFBR according to the research project № 18-29-190080
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zhukov V. V., Erohin S. V., Churkin V. D., Vnukova N. G., Antipina L. Y., Elesina V. I., Visotin M. A., Tomashevich Y. V., Popov M. Y., Churilov G. N., Sorokin P. B., Fedorov A. S.
Заглавие : Feature of the endohedral metallofullerene Y@C82 and Gd@C82 polymerization under high pressure
Место публикации : J. Phys. Chem. C. - 2022. - Vol. 126, Is. 40. - P.17366-17373. - ISSN 19327447 (ISSN), DOI 10.1021/acs.jpcc.2c05139
Примечания : Cited References: 35. - The authors gratefully acknowledge the financial support of the RFBR (project identifier: 18-29-19080). V.D.C. acknowledges the support of the RFBR (project identifier: 20-32-90038). M.Y.P. acknowledges the support of the Ministry of Science and Higher Education of the Russian Federation in the framework of the State Task (project code 0718-2020-0037) for Raman study, interpretation, and discussion of obtained results and Russian Science Foundation (project #20-12-00097) for investigation of fullerite mechanical properties. V.V.Z., S.V.E., and P.B.S. acknowledge the support of the Ministry of Science and Higher Education of the Russian Federation in the framework of the strategic academic leadership program “Priority 2030” (no. K6-2022-041). The calculations were performed at the supercomputer cluster provided by the Materials Modeling and Development Laboratory at NUST “MISIS” and the Joint Supercomputer Center of the Russian Academy of Sciences. The authors thank the staff of the Information Technology Department of the Moscow Institute of Physics and Technology and express their gratitude to the Data Center Group for their help in performing calculations
Аннотация: In the present work, the polymerization of endohedral metallofullerenes (EMFs) with gadolinium (Gd@C82) and yttrium atoms (Y@C82) at high pressures achieved using the shear diamond anvil cell technique is studied using both theoretical and experimental approaches. It is found that in contrast to pure fullerenes, EMF polymerization starts at lower pressures with similar behavior for both metals inside the fullerene cage. EMF polymerization occurs smoothly and finally leads to a significant increase in the number of interfullerene bonds at pressures higher than ∼20 GPa. Finally, a high bulk modulus of both EMF-polymerized materials is obtained using Raman spectra.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Erohin S. V., Churkin V. D., Vnukova N. G., Visotin M. A., Kovaleva E. A., Zhukov V. V., Antipina L. Yu., Tomashevich Ye. V., Mikhlin U. L., Popov M. Yu., Churilov G. N., Sorokin P. B., Fedorov A. S.
Заглавие : Insights into fullerene polymerization under the high pressure: The role of endohedral Sc dimer
Место публикации : Carbon. - 2022. - Vol. 189. - P.37-45. - ISSN 00086223 (ISSN), DOI 10.1016/j.carbon.2021.12.040
Примечания : Cited References: 39. - The authors gratefully acknowledge the financial support of RFBR (Project identifier:18-29-19080). The calculations were performed at supercomputer cluster provided by the Materials Modeling and Development Laboratory at NUST “MISIS” and Joint Supercomputer Center of the Russian Academy of Sciences. The authors thank the staff of the Information Technology Department of the Moscow Institute of Physics and Technology and express their gratitude to the Data Center Group for their help in making calculations. M.P. acknowledges the support of the Ministry of Science and Higher Education of the Russian Federation in the framework of the State Task (project code 0718-2020-0037) for Raman study, interpretation, and discussion of obtained results as well as Russian Science Foundation (project #20-12-00097) for investigation of fullerite mechanical properties. V.D.C. acknowledges the support of RFBR (Project identifier:20-32-90038)
Аннотация: In this work, through the technology of producing endohedral metallofullerene in macroscopic quantities, the process of pressure polymerization of Sc2C2@C82 and their mechanical properties have been investigated in detail using a set of experimental and theoretical methods. The crucial role of endohedral atoms is demonstrated by comparison with pristine fullerenes. It is shown that the embedding of Sc2C2 complex inside a fullerene significantly facilitates the polymerization process which finally leads to the highly rigid material at high pressures.
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Вид документа : Статья из журнала
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Автор(ы) : Manakhov A., Fukova S., Necas D., Michlicek M., Ershov S., Elias M., Visotin M. A., Popov Z., Zajickova L.
Заглавие : Analysis of epoxy functionalized layers synthesized by plasma polymerization of allyl glycidyl ether
Место публикации : Phys. Chem. Chem. Phys. - 2018. - Vol. 20, Is. 30. - P.20070-20077. - ISSN 14639076 (ISSN), DOI 10.1039/c8cp01452c
Примечания : Cited References: 32. - Authors gratefully acknowledge the financial support of the Ministry of Education and Science of the Russian Federation in the framework of Increase Competitiveness Program of NUST ‘‘MISiS’’ (K4-2016-005), implemented by a governmental decree dated 16th of March 2013, N 211. Authors also acknowledge the project CEITEC 2020 (LQ1601) with financial support from the Ministry of Education, Youth and Sports of the Czech Republic (MEYS CR) under the National Sustainability Programme II. Part of the work was carried out with the support of CEITEC Nano Research Infrastructure (MEYS CR, 2016–2019). MM is a Brno PhD Talent scholarship holder – funded by Brno city municipality.
Аннотация: The deposition of epoxide groups by plasma polymerization opens new horizons for robust and quick immobilization of biomolecules on any type of substrate. However, as of now there are just very few papers dealing with the deposition of epoxy layers by plasma polymerization, probably due to the high reactivity of this group leading to a low functionalization efficiency. In this work we carried out an extensive experimental and theoretical investigation of plasma synthesis of epoxide groups from a low pressure allyl glycydyl ether (AGE) plasma. The influence of composite parameter W/F and the working pressure on the density of epoxide groups and the layer stability was thoroughly addressed. It was found that by increasing the working pressure it is possible to sufficiently raise the concentration of epoxide groups. The composite parameter W/F was shown to be a crucial parameter in affecting the density of epoxides. An optimal value of W/F of around 2.3 eV per molecule leading to the highest density of epoxides produced in the process at 15 Pa was revealed through FT-IR and XPS findings. This value correlates well with the ab initio calculations suggesting that the lowest bond dissociation energy belongs to the C-O bond of the epoxide ring. Therefore, in order to increase the density of epoxides deposited by plasma polymerization, a precursor molecule containing at least two epoxide rings is strongly advised to be employed.
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Вид документа : Статья из журнала
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Автор(ы) : Nemtsev I. V., Shabanova O. V.
Заглавие : Manufacturing of opals from polymethylmethacrylate particles in dispersion media with different viscosities
Место публикации : J. Sib. Fed. Univ. Math. Phys. - 2021. - Vol. 14, Is. 2. - P.176-183. - ISSN 19971397 (ISSN), DOI 10.17516/1997-1397-2021-14-2-176-183; Журн. СФУ. Матем. и физика. - ISSN 23136022 (eISSN)
Примечания : Cited References: 42. - The study was carried out with the support of the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center "Krasnoyarsk Science Center SB RAS". The work was supported by the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation (topic no. AAAA-A18-118041990041-8)
Аннотация: The article was prepared based on the materials of the report at the first All-Russian scientific conference with international participation "YENISEI PHOTONICS – 2020". Photonic crystals are structures that have a spatial architecture with a periodically changing complex dielectric function at scales comparable to the wavelengths of light in the visible frequency range. The purpose of this study is to obtain three-dimensional photonic crystals by self-assembly from submicron spherical monodisperse particles of polymethylmethacrylate in dispersion media with different viscosities.Фотонные кристаллы — это структуры, которые имеют пространственную архитектуру с периодически изменяющейся сложной диэлектрической функцией в масштабах, сопоставимых с длинами волн света в видимом диапазоне частот. Целью данной работы является получение трёхмерных фотонных кристаллов путём самосборки из субмикронных сферических монодисперсных частиц полиметилметакрилата в дисперсных средах с различной вязкостью.
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