Библиотека института физики им. Л.В. Киренского СО РАН

Главная

Базы данных

Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

Область поиска

в найденном

Найдено в других БД:

Каталог книг и брошюр библиотеки ИФ СО РАН (2)

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>K=fullerenes<.>)

Общее количество найденных документов : 56
Показаны документы с 1 по 20

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vnukova N. G., Nikolaev N. S., Bartseva L. S., Kastiuk M. R., Elesina V. I., Isakova V. G., Churilov G. N.
Заглавие : Enrichment of a fullerene mixture with endohedral metallofullerenes: methodology and evaluation
Колич.характеристики :5 с
Место публикации : Fuller. Nanotub. Carbon Nanostructures. - 2024. - Article in press. - ISSN 1536383X (ISSN), DOI 10.1080/1536383X.2024.2338524. - ISSN 15364046 (eISSN)
Примечания : Cited References: 46
Аннотация: A fullerene mixture was enriched with endohedral metallofullerenes (EMF) using Lewis acid (TiCl4), which took 22 min, whereas the standard method requires about 8 h. An algorithm for assessing small-area chromatographic peaks has been proposed, which has improved the accuracy of determination. For example, the area of the C84 peak was 4.24% using the developed program, while the use of chromatograph software estimated the area of this peak to be 1.78%.
Смотреть статью,
WOS
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Elesina V. I., Churilov G. N., Vnukova N. G., Nikolaev N. S., Glushenko G. A., Isakova V. G.
Заглавие : Mechanical activation of fullerene containing soot during extraction of higher and endohedral metallofullerenes
Место публикации : Fuller. Nanotub. Carbon Nanostruct. - 2022. - Vol. 30, Is. 5. - P.553-558. - ISSN 1536383X (ISSN), DOI 10.1080/1536383X.2021.1966421
Примечания : Cited References: 33
Аннотация: For extraction of higher fullerenes and endohedral metallofullerenes (EMF) with yttrium from fullerene-containing carbon soot (soot) obtained by combined spraying of graphite and yttrium oxide powders in an arc plasma, we developed a device (Extractor*) that provides mechanical activation effects on agents combined with filtration. It has been shown that the soot recovery percentage of a mixture of higher fullerenes and EMF with different solvents (carbon disulfide, o-xylene, pyridine) and the EMF mass fraction in the mixture is significantly higher than in the extraction with a Soxhlet apparatus traditionally used for these purposes. The time spent on the extraction process is reduced significantly. Due to a known reaction with titanium chloride (TiCl4) and removal of a solution of empty fullerenes, subsequent bonding of EMF with yttrium into an insoluble complex directly in the extractor allows the product to be significantly enriched with EMF. In general, we were able to significantly reduce both the duration of extraction of the fullerenes mixture and EMF and the production of EMF separately.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

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.
Смотреть статью,
Scopus
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shakirova A. A., Tomilin F. N., Pomogaev V. A., Vnukova N. G., Churilov G. N., Kudryasheva N. S., Tchaikovskaya O. N., Ovchinnikov S. G., Avramov P. V.
Заглавие : Synthesis, mass spectroscopy detection, and density functional theory investigations of the Gd endohedral complexes of C82 fullerenols
Коллективы : RFBRRussian Foundation for Basic Research (RFBR) [18-29-19003 MK]; Russian Ministry of Science and EducationMinistry of Education and Science, Russian Federation [0721-2020-0033]; Collaborative NRF-RFBR grant (Korean) [NRF-2019K2A9A1A06100125]; Collaborative NRF-RFBR grant (Russian) [19-53-51005 NIFa RFFI-Korea]; NRF [2021R1A2C1010455]
Место публикации : Computation. - 2021. - Vol. 9, Is. 5. - Ст.58. - ISSN 2079-3197(eISSN), DOI 10.3390/computation9050058
Примечания : Cited References: 41. - The experimental results were funded by RFBR project No. 18-29-19003 MK. The quantum chemical study was funded by project 0721-2020-0033 of the Russian Ministry of Science and Education. The collaboration and coordination of Russian and Korean teams was supported by Collaborative NRF-RFBR grant (Korean ID: NRF-2019K2A9A1A06100125; Russian ID: Project No. 19-53-51005 NIFa RFFI-Korea) and NRF 2021R1A2C1010455 grant
Предметные рубрики: ZETA VALENCE QUALITY
BIOLOGICAL-ACTIVITY
BASIS-SETS
TOXICITY
Аннотация: Gd endohedral complexes of C82 fullerenols were synthesized and mass spectrometry analysis of their composition was carried out. It was established that the synthesis yields a series of fullerenols Gd@C82Ox(OH)y (x = 0, 3; y = 8, 16, 24, 36, 44). The atomic and electronic structure and properties of the synthesized fullerenols were investigated using the density functional theory calculations. It was shown that the presence of endohedral gadolinium increases the reactivity of fullerenols. It is proposed that the high-spin endohedral fullerenols are promising candidates for application in magnetic resonance imaging.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Novikov P. V., Osipova I. V., Churilov G. N., Dudnik A. I.
Заглавие : Simulation of fullerene formation in a carbon-helium plasma
Место публикации : Fuller. Nanotub. Carbon Nanostruct. - 2021. - Vol. 29, Is. 5. - P.337-342. - ISSN 1536383X (ISSN), DOI 10.1080/1536383X.2020.1842738
Примечания : Cited References: 22
Аннотация: A kinetic model of fullerene formation in the carbon-helium plasma of an arc discharge was proposed. In the model, in addition to the coagulation of carbon clusters, the cluster isomerization and their cooling with a buffer gas were taken into account. The simulation results of the fullerene formation are in qualitatively agreement with the experimental data, i.e., the fraction of higher fullerenes increases at high pressures in the fullerene mixture.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Elesina V. I., Churilov G. N., Vnukova N. G.
Заглавие : The method for efficient extraction of fullerenes and enrichment of EMF in an extractor
Коллективы : "Functional materials", International conference, Крымский федеральный университет имени В.И. Вернадского
Место публикации : Ovchinnikov S. G. International conference "Functional materials": book of abstracts/ ed. V. N. Berzhansky ; org. com. S. G. Ovchinnikov [et al.]. - Simferopol, 2021. - P.228-229
Примечания : Библиогр.: 5. - Study was funded by RFBR according to the research project № 18-29-19003
Материалы конференции,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Елесина, Виктория Игоревна, Чурилов, Григорий Николаевич, Внукова, Наталья Григорьевна, Глущенко, Гарий Анатольевич
Заглавие : Выделение фуллеренов на экстракторе с механоактивацией
Коллективы : "Решетневские чтения", международная научно-практическая конференция, Сибирский государственный университет науки и технологий им. акад. М. Ф. Решетнева, Информационные спутниковые системы им. М.Ф. Решетнева, ОАО, "Красноярский машиностроительный завод", ОАО, Федеральный исследовательский центр "Красноярский научный центр Сибирского отделения Российской академии наук"
Место публикации : Решетневские чтения: материалы XXV междунар. науч.-практ. конф. : в 2-х ч. - Красноярск, 2021. - Ч. 1. Секция "Наноматериалы, нанотехнологии и информационные системы в аэрокосмической отрасли". - С. 577-578
Примечания : Библиогр.: 7. - Исследование выполнено при финансовой поддержке РФФИ в рамках научного проекта № 18-29-19080
Аннотация: Нами разработаны методики и устройства для получения эндоэдральных металлофуллеренов (ЭМФ) в значительных количествах. ЭМФ являются прекурсорами сверхтвердых материалов и могут использоваться во многих отраслях современной науки и техники, в том числе ракетно-космической.
Материалы конференции,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dudnik A. I., Osipova I. V., Nikolaev N. S., Churilov G. N.
Заглавие : Comparative analysis of two methods for synthesis of fullerenes at different helium pressures
Коллективы : RFBRRussian Foundation for Basic Research (RFBR) [18-32-20011]
Место публикации : Fuller. Nanotub. Carbon Nanostruct. - 2020. - Vol. 28, Is. 9. - P.697-701. - ISSN 1536-383X, DOI 10.1080/1536383X.2020.1746281. - ISSN 1536-4046(eISSN)
Примечания : Cited References: 16. - The reported study was funded by RFBR according to the research project No 18-32-20011
Предметные рубрики: PLASMA
YIELD
DISCHARGE
PARAMETERS
DEPENDENCE
C60
Аннотация: The results of the effect of helium pressure in the chamber on the amount and composition of the produced fullerenes (C60, C70, etc.) synthesized in the arc plasma with graphite electrodes are presented. The findings obtained when the arc is powered by a direct (DC) and alternating (AC) currents of low frequency were compared in the same chamber with the electrodes located at the same angle to each other. These two methods are drastically different. The complete conversion of graphite into fullerene soot in AC occurs, but a part of the graphite is converted into a cathode deposit that does not contain fullerenes in DC, the relative amount of which increases when decreasing the helium pressure in the chamber. The highest fullerene content in fullerene soot of 10.2 wt.% is produced at a pressure of 127.5 kPa in AC arc, but in DC arc, the highest content of fullerenes in fullerene soot of 8.3 wt.% is produced at a pressure of 33.3 kPa.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Осипова, Ирина Владимировна, Дудник, Александр Иванович, Глущенко, Гарий Анатольевич
Заглавие : Влияние давления гелия на синтез фуллеренов в плазме дуги переменного тока
Коллективы : "Функциональные наноматериалы и высокочистые вещества", международная конференция с элементами научной школы для молодежи (8; 2020 ; окт. ; 5-9; Суздаль)
Место публикации : VIII Международная конференция с элементами научной школы для молодежи "Функциональные наноматериалы": сб. материалов. - 2020. - С. 248-249. - ISBN 978-5-6043996-5-1
Примечания : Библиогр.: 6
Материалы конференции,
Материалы конференции,
Читать в сети ИФ
Найти похожие

10.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Осипова, Ирина Владимировна, Дудник, Александр Иванович, Глущенко, Гарий Анатольевич
Заглавие : Синтез фуллеренов в плазме дуги постоянного и переменного тока
Коллективы : "Функциональные наноматериалы и высокочистые вещества", международная конференция с элементами научной школы для молодежи (8; 2020 ; окт. ; 5-9; Суздаль)
Место публикации : VIII Международная конференция с элементами научной школы для молодежи "Функциональные наноматериалы": сб. материалов. - 2020. - С. 246-247. - ISBN 978-5-6043996-5-1
Примечания : Библиогр.: 4
Материалы конференции,
Материалы конференции,
Читать в сети ИФ
Найти похожие

11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Churilov G. N., Elesina V. I., Dudnik A. I., Vnukova N. G.
Заглавие : Ultrafast method of fullerenes extraction from carbon condensate
Место публикации : Fuller. Nanotub. Carbon Nanostruct. - 2019. - Vol. 27, Is. 3. - P.225-232. - ISSN 1536383X, DOI 10.1080/1536383X.2018.1543277
Примечания : Cited References: 46. - The authors are grateful to Alexey Popov (Leibniz Institute for Solid State and Materials Research, Dresden, German) for his contribution in conducting mass spectrometer studies.
Ключевые слова (''Своб.индексиров.''): solution extraction--mechanical extraction--fullerenes--soxhlet
Аннотация: The Soxhlet extraction method (SE) only used in the extraction of fullerenes from carbon condensate (CC) obtained in the fullerene production facility, which in the literature is often referred to as carbon black, does not provide complete extraction. Fullerenes can also be extracted from the CC suspension and the solvent by the mechanical extraction method (ME) and show higher degree of extraction efficiency. This method combined with filtration process takes only a few minutes and allows a significant reduction in solvent consumption. Extraction via the ME method application makes it possible to carry out extraction of fullerenes twenty times faster than by the SE method. It can be used as an independent method, bypassing the extraction by the SE method, and also as an additional one. Application of the ME method allows additional extraction of fullerenes weight percentage from the CC, after extracting fullerenes from it applying the SE method. In this instance the higher fullerenes prevail in the essences extracted by the ME method with their content reaching as high as 39.50 wt%. The obtained samples of fullerene mixtures (FM) are characterized by the methods of high-performance liquid chromatography and mass spectrometry. Analysis of the results shows that the composition of the FM, isolated by the ME method, differs from the compositions extracted via the ME method.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Elesina V. I., Churilov G. N., Vnukova N. G., Dudnik A. I., Osipova I. V.
Заглавие : Filtration process combined with mechanical action, as a method for efficient extraction of endohedral metallofullerenes from carbon soot
Место публикации : Fuller. Nanotub. Carbon Nanostruct. - 2019. - Vol. 27, Is. 10. - P.803-807. - ISSN 1536383X (ISSN), DOI 10.1080/1536383X.2019.1648439
Примечания : Cited References: 22
Аннотация: The paper presents results of fullerenes and endohedral metallofullerenes extracts studies, isolated from the graphite rods carbon soot spray, and containing Y2O3 in a high frequency arc discharge. Two ways of extraction were applied and compared–(1) the classic method of Soxhlet extraction, and (2) the one developed by our team–extraction based on mechanical action combined with filtration. To implement the method, we used a laboratory version of installation, embodying technical solutions for rapid extraction. Chromatographic and mass spectrometry studies of fullerene extracts obtained by these methods revealed that by combining mechanical action with simultaneous filtration, we can significantly intensify and reduce the process of extracting fullerenes and endohedral metallofullerenes compared to the Soxhlet extraction method. This is especially evident in the release of endohedral metallofullerenes. Our method allows to reduce the release time of fullerenes from 10 g of carbon soot on laboratory installation up to 15 minutes, against the Soxhlet extraction method taking 18 hours. Whilst, the total number of fullerenes extracted by both methods almost coincides (the extraction method using mechanical action allowed us to extract 0.2-0.4 wt. % more), the composition of the isolated fullerene mixtures is different. The relative content of higher fullerenes and endohedral metallofullerenes exceeds when the mechanical action-based extraction method applied. © 2019, © 2019 Taylor & Francis Group, LLC.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Churilov G. N., Nikolaev N. S., Cherepakhin A. V., Dudnik A. I., Tomashevich E. V., Trenikhin M. V., Bulina N. G.
Заглавие : Thermal oxidation of a carbon condensate formed in high-frequency carbon and carbon-nickel plasma flow
Коллективы : Russian Foundation for Basic Research; Government of Krasnoyarsk Territory; Krasnoyarsk Territorial Foundation for the Support of Scientific and RD Activities [16-43-242148]
Место публикации : Tech. Phys. - 2018. - Vol. 63, Is. 2. - P.216-219. - ISSN 1063-7842, DOI 10.1134/S1063784218020093. - ISSN 1090-6525(eISSN)
Примечания : Cited References:12. - Transmission electron microscopy investigations were carried out on equipment of the Omsk Regional Center of Collective Use of the Siberian Branch of the Russian Academy of Sciences. This study was supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, and the Krasnoyarsk Territorial Foundation for the Support of Scientific and R&D Activities, project no. 16-43-242148.
Предметные рубрики: FULLERENES
OXIDE
METAL
Аннотация: We have reported on the comparative characteristics of thermal oxidation of a carbon condensate prepared by high-frequency arc evaporation of graphite rods and a rod with a hollow center filled with nickel powder. In the latter case, along with different forms of nanodisperse carbon, nickel particles with nickel core-carbon shell structures are formed. It has been found that the processes of the thermal oxidation of carbon condensates with and without nickel differ significantly. Nickel particles with the carbon shell exhibit catalytic properties with respect to the oxidation of nanosized carbon structures. A noticeable difference between the temperatures of the end of the oxidation process for various carbon nanoparticles and nickel particles with the carbon shell has been established. The study is aimed at investigations of the effect of nickel nanoparticles on the dynamics of carbon condensate oxidation upon heating in the argon-oxygen flow.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Churilov G. N., Dudnik A. I., Drokin N. A., Vnukova N. G., Tomashevich E. V., Bondarev V. S.
Заглавие : Obtaining of hydroxylated fullerenes Y@C82OX(OH)Y, Y2@C82OX(OH)Y, Y2C2@C82OX(OH)Y and electrophysical characteristic of composite film based thereon
Место публикации : Fuller. Nanotub. Carbon Nanostruct. - 2018. - Vol. 26, Is. 12. - P.799-803. - ISSN 1536383X (ISSN), DOI 10.1080/1536383X.2018.1501559
Примечания : Cited References: 33. - We thank A.A. Popov and his team (The Leibniz Institute for Solid State and Materials Research, Dresden, Germany) for research conducted via mass-spectrometer MALDI-TOF Bruker BIFLEX TM III.
Ключевые слова (''Своб.индексиров.''): endohedral metallofullerene--impedance spectroscopy--polarization
Аннотация: The article presents, for the first time, the results of the research on composite film obtained from hydroxylated endohedral metallofullerenes (EMF) Y@C82, Y2@C82, with Y2C2@C82 and highest fullerenes as dopant. The composite film has been established to have electric conductivity and to be a ferroelectric with the value of residual polarization of ∼0.75 μC/cm2. The impedance spectroscopy of this sample allowed us to determine dispersion of dielectric permittivity and conductivity in the range of frequencies of 0.5 Hz–100 MHz. It is stated that the value of the high-frequency dielectric permittivity of films is ε′∞ = 2.8. However, with reduction in the electric field frequency, real and imaginary parts of ε increase to values ∼104–105. Such increase in dielectric permittivity is connected with increase in polarizing caused by accumulation of mobile electric charges (electrons of ions, protons) on boundaries of the structural defects of a film, which are divided by thin dielectric interlayers. The film is solid electrolyte with the ionic conductivity of ∼5 × 10−7 S/cm.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ,
Читать в сети ИФ
Найти похожие

15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Churilov G. N., Vnukova N. G., Tomashevich E. V., Dudnik A. I., Glushchenko G. A., Dubinina I. A., Gulyaeva U. E., Mel'nikova E. I.
Заглавие : Yttrium-containing endohedral metallofullerenes: Synthesis and extraction
Коллективы : Ministry of Education and Science of the Russian Federation, Russian/Japanese Project [14.613.21.0010, RFMEFl61314X0010]
Место публикации : Phys. Solid State: MAIK Nauka-Interperiodica / Springer, 2017. - Vol. 59, Is. 8. - P.1662-1665. - ISSN 1063-7834, DOI 10.1134/S1063783417080054. - ISSN 1090-6460(eISSN)
Примечания : Cited References:11. - This study was supported by the Ministry of Education and Science of the Russian Federation, Russian/Japanese Project, agreement no. 14.613.21.0010, ID RFMEFl61314X0010.
Предметные рубрики: FULLERENES
PRESSURE
PLASMA
Аннотация: Yttrium-containing endohedral metallofullerenes are synthesized in an RF arc discharge in the helium flow with embedded Y2O3. It is shown that the formation of the metallofullerenes depends on the helium pressure in a chamber; however, this dependence cannot be explained using the model of formation of conventional fullerenes without a guest atom in a molecule. The results of extraction of Y@C-82 by pyridine and carbon disulfide are reported. The pressure corresponding to the maximum yttrium-containing endohedral metallofullerene content is shown to be 60 kPa; under this pressure, extraction by carbon disulfide allows obtaining 27.1 wt % of the endohedral metallofullerene, while extraction by pyridine yields its amount of 17.3 wt %.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vnukova N. G., Dudnik A. I., Komogortsev S. V., Velikanov D. A., Nemtsev I. V., Volochaev M., Osipova I. V., Churilov G. N.
Заглавие : Carbon coated nickel nanoparticles produced in high-frequency arc plasma at ambient pressure
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium, Институт физики им. Л.В. Киренского Сибирского отделения РАН
Место публикации : J. Magn. Magn. Mater.: Elsevier Science, 2017. - Vol. 440: EURO-Asian Symposium on Trends in Magnetism (EASTMAG) (AUG 15-19, 2016, Siberian Fed Univ, Krasnoyarsk, RUSSIA). - P.164-166. - ISSN 0304-8853, DOI 10.1016/j.jmmm.2016.12.142. - ISSN 1873-4766(eISSN)
Примечания : Cited References:10. - The work was supported by Ministry of Education and Science of Russia (Russian-Japanese joined project, Agreement No 14.613.21.0010, ID RFMEFI61314X0010).
Предметные рубрики: FULLERENES
NI3C
Ключевые слова (''Своб.индексиров.''): nanoparticles--carbon--nickel
Аннотация: The nickel particles with the mean size about 10-20 nm coated with carbon were extracted by the treatment of the carbon condensate with nitric and hydrochloric acids. The initial carbon condensate containing nickel nanoparticles with a graphite conversion was synthesized in the high-frequency carbon-helium arc plasma at ambient pressure with the nickel nanoparticles as a catalyst. The nickel content in the nanoparticles was 84.6 wt %. Magnetic properties of the nanoparticles are characterized by the high hysteresis and thermal stability. The sample of compacted nanoparticles is characterized by electrical resistance much higher than it in of compacted initial condensate.
Смотреть статью,
WOS,
Читать в сети ИФ
Найти похожие

17.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Churilov G. N., Dudnik A. I., Osipova I. V., Vnukova N. G., Nikolaev N. S., Volochaev M. N., Tomashevich Y. V.
Заглавие : Preparation of polymers based on fullerenes and nanoparticles of titanium carbide and their properties
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)
Место публикации : 13th Int. Conf. "Adv. Carbon Nanostructures": Book of abstracts. - 2017. - Poster session 1: Fullerenes and Nanodiamond Particles. - Ст.P1-14. - P.83. - ISBN 978-5-93634-037-6
Примечания : Библиогр.: 1
Аннотация: When carbon condensate (CC) is synthesized by spraying graphite rods containing doping powders in arc discharge plasma, usually, in addition to fullerenes, nanoparticles, metal nanoparticles with a carbon shell or nanoparticles of metal carbide are formed [1]. The description of a procedure for the preparation of polymers based on fullerenes and nanodispersed titanium carbide particles and the results of investigation of these polymers will be given in this paper. Titanium and titanium oxide are used as doping powders. The solutions extracted with carbon disulfide are filtered through paper filters. According to X-ray diffraction analysis and transmission electron microscope, the carbon disulphide extract from CC synthesized with the inputting of metallic titanium, does not contain nanoparticles of this metal or its carbide and is characterized by the presence of fullerite clusters (extract 1). While the extract from the CC synthesized with the titanium oxide inputting contains TiC nanoparticles with size of 7–10 nm, while fullerenes are also contained, but in the amorphous state (extract 2) of Fig.1. HPLC analysis of the fullerenes toluene solution, obtained by redissolution of extract 1, allowed to isolate the fullerenes with the usual composition and with the usual ratio between components (C60 – 74.4 %, C70 – 18.9 % and higher fullerenes – 6.7 %). The redissolution of extract 2 in toluene, did not allow to obtain fullerenes solution. Thus, the presence of nanodispersive particles of TiC in the fullerenes solution, upon their drying, leads to polymers formation.
Материалы конференции
Найти похожие

18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Churilov G. N., Popov A. A., Gulyaeva U. E., Samoylova N. A., Vnukova N. G., Kolonenko A. L., Isakova V. G., Dudnik A. I., Koravanets V. S.
Заглавие : Express analysis of endohedral fullerenes amount contained at fullerene mixture
Место публикации : Наносистемы: физ., хим., матем.: Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики, 2016. - Т. 7, № 1. - С.140-145. - ISSN 2220-8054, DOI 10.17586/2220-8054-2016-7-1-140-145; Nanosystems: phys., chem., mathem.
Примечания : Библиогр.: 7. - The work was supported by the Ministry of Education and Science of Russia (Russian-Japanese joined project, Agreement N 14.613.21.0010, ID RFMEFI61314X0010).
Ключевые слова (''Своб.индексиров.''): endohedral fullerene--atom emission spectroscopy--quantitative assessment
Аннотация: This paper describes the technique for rapid determination of endohedral metallofullerene (EMF) content in a fullerene mixture (FM). The methods of mass spectroscopy and atom emission element analysis underlay at the technique. By the method of mass spectroscopy, the type of EMF with atom-guest is registered and by the method of emission spectroscopy, the quantity of that element which is contained in the FM is determined. The technique may be used for rapid determination of EMF weight percents in the FM in the specific case if only one type of EMF is present, and of EMF average content if there are different types of EMF are present. The technique is demonstrated through the example of analysis of FM with Y, which was extracted from the carbon condensate (CC) by different solvents (C5H5N and CS2).
Смотреть статью,
РИНЦ,
Читать в сети ИФ
Найти похожие

19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Churilov G. N., Popov A. A., Vnukova N. G., Dudnik A. I., Samoylova N., Glushenko G. A.
Заглавие : Controlled synthesis of fullerenes and endohedral metallofullerenes in high frequency arc discharge
Место публикации : Fuller. Nanotub. Carbon Nanostruct.: Taylor and Francis, 2016. - Vol. 24, Is. 11. - P.675-678. - ISSN 1536383X (ISSN), DOI 10.1080/1536383X.2016.1207062
Примечания : Cited References: 16. - The work is supported by the Ministry of Education and Science of Russia (Russian-Japanese joined project, Agreement № 14.613.21.0010, ID RFMEFI61314X0010).
Ключевые слова (''Своб.индексиров.''): fullerene--endohedral metallofullerenes--high frequency arc discharge--pressure--mass spectrum
Аннотация: The article presents the high-frequency arc discharge setup operating in helium atmosphere and applicable for the syntheses of carbon condensate with different dispersion and structure, along with fullerenes and endohedral metallofullerenes. It also highlights how the change of helium pressure in chamber can control the amount and composition of products in carbon condensate. The setup can be applied for the purposes of analysis, for instance in order to obtain information about the process of fullerenes and endohedral met-allofullerenes formation. Also, the fact that the yield of higher fullerenes is increasing with the pressure rise, whereas the yield of endohedral metallofullerenes is decreasing suggests different formation mechanisms. © 2016 Taylor & Francis Group, LLC.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chervyakova D. I., Churilov G. N., Dudnik A. I., Glushenko G. A., Kovaleva E. A., Kuzubov A. A., Nikolaev N. S., Osipova I. V., Vnukova N. G.
Заглавие : The technology and setup for high-throughput synthesis of endohedral metal fullerenes
Коллективы : "Research and Development - 2016", Scientific-Practical Conference
Место публикации : Proceedings of the Scientific-Practical Conference "Research and Development - 2016": Springer, 2016. - P.481-489. - ISSN 978-3-319-62869-1, DOI 10.1007/978-3-319-62870-7_51
Аннотация: The article presented the technology and setup for high-throughput synthesis of carbon nanostructures. It was shown that the plasma-chemical synthesis of fullerenes and endohedral metallofullerenes (EMF) in high-frequency arc discharge can be controlled by changing helium pressure in the chamber. The methods of extraction using Lewis acids and separation of individual EMF by HPLC were suggested as the most effective.
Материалы конференции,
Читать в сети ИФ
Найти похожие