Study of the Electronic Structure and Properties of 13C-Isotope-Based Composites Full article
Journal |
Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques
ISSN: 1027-4510 , E-ISSN: 1819-7094 |
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Output data | Year: 2007, Volume: 1, Number: 6, Pages: 645-650 Pages count : 6 DOI: 10.1134/S1027451007060043 | ||||||||||
Tags | Surface Investigation; Neutron Technique; Graphite Particle; Carbon Composite; Carrier Transfer | ||||||||||
Authors |
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Affiliations |
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Funding (4)
1 | The Ministry of Education and Science of the Russian Federation | 2.1.1.1604 |
2 | The Ministry of Education and Science of the Russian Federation | 02.513.11.3314 |
3 | Council for Grants of the President of the Russian Federation | НШ-4419.2006.3 |
4 | The Ministry of Education and Science of the Russian Federation | 02.513.11.3348 |
Abstract:
The morphology and electronic structure of 13C-isotope-based graphite composites were studied by transmission electron microscopy (TEM), x-ray diffraction, and x-ray fluorescence spectroscopy. High-resolution TEM images showed that composites contain several forms of carbon particles. According to an x-ray diffraction analysis, the size of graphene stacks of graphite particles is 20 and 40 Å. The CKα x-ray fluorescence spectra of the initial 13C isotope powder and composites based on it detected an increase in the density of high-energy occupied states in comparison with the graphite spectrum. Ab initio quantum chemical calculation of the structure of C150 graphene showed that the increase in the density of states stems from the electrons of dangling bonds of boundary carbon atoms of particles ∼20 Å in size. Electrical properties of 13C-isotope-based samples were studied by analyzing the temperature dependence of the conductivity. It was assumed that the change in the logarithmic dependence of the conductivity observed at liquid-helium temperatures to the linear dependence as the temperature increases is caused by carrier transfers between the disordered graphene layers forming a nanocomposite.
Cite:
Zhmurikov E.I.
, Romanenko A.I.
, Bulusheva L.G.
, Anikeeva O.B.
, Lavskaya Y.V.
, Okotrub A.V.
, Abrosimov O.G.
, Tsybulya S.V.
, Logachev P.V.
, Tecchio L.
Study of the Electronic Structure and Properties of 13C-Isotope-Based Composites
Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques. 2007. V.1. N6. P.645-650. DOI: 10.1134/S1027451007060043 WOS Scopus РИНЦ
Study of the Electronic Structure and Properties of 13C-Isotope-Based Composites
Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques. 2007. V.1. N6. P.645-650. DOI: 10.1134/S1027451007060043 WOS Scopus РИНЦ
Original:
Жмуриков Е.И.
, Романенко А.И.
, Булушева Л.Г.
, Аникеева О.Б.
, Лавская Ю.В.
, Окотруб А.В.
, Абросимов О.Г.
, Цыбуля С.В.
, Логачев П.В.
, Tecchio L.
Исследование электронной структуры и свойств композитов на основе изотопа углерода 13C
Поверхность. Рентгеновские, синхротронные и нейтронные исследования. 2007. №11. С.29-35. РИНЦ
Исследование электронной структуры и свойств композитов на основе изотопа углерода 13C
Поверхность. Рентгеновские, синхротронные и нейтронные исследования. 2007. №11. С.29-35. РИНЦ
Dates:
Submitted: | Nov 11, 2006 |
Published print: | Dec 1, 2007 |
Identifiers:
Web of science | WOS:000205679500004 |
Scopus | 2-s2.0-49249124540 |
Elibrary | 13544580 |
OpenAlex | W2317844737 |