Research output: Contribution to journal › Article › peer-review
Graphitization of 13C enriched fine-grained graphitic material under high-pressure annealing. / Fedoseeva, Yu V.; Okotrub, A. V.; Koroteev, V. O. et al.
In: Carbon, Vol. 141, 01.01.2019, p. 323-330.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Graphitization of 13C enriched fine-grained graphitic material under high-pressure annealing
AU - Fedoseeva, Yu V.
AU - Okotrub, A. V.
AU - Koroteev, V. O.
AU - Borzdov, Yu M.
AU - Palyanov, Yu N.
AU - Shubin, Yu V.
AU - Maksimovskiy, E. A.
AU - Makarova, A. A.
AU - Münchgesang, W.
AU - Bulusheva, L. G.
AU - Vyalikh, A.
N1 - Publisher Copyright: © 2018 Elsevier Ltd
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Hot pressing is one of the promising routes for graphitization of carbon materials. In the present work, high-pressure high-temperature behaviour of 13C-enriched fine-grained graphitic material has been studied by using a set of experimental tools such as scanning electron microscopy, Raman scattering, X-ray diffraction, X-ray photoelectron and near-edge X-ray absorption fine structure spectroscopies, and solid-state nuclear magnetic resonance (NMR) spectroscopy. The material has been annealed at a temperature of 1200 or 1500 °C using a stabilizing pressure of 5 GPa. It shown, that addition of small amount of water during the annealing at 1200 °C results in a better local atomic ordering of carbon material and increases the hydrocarbon fraction. Well-ordered graphite crystals enriched with 13C isotope are formed on the surface of nickel ampule at 1500 °C. An increase in processing time from 2 to 15 h decreases the defect density and improves the graphitization level of the material.
AB - Hot pressing is one of the promising routes for graphitization of carbon materials. In the present work, high-pressure high-temperature behaviour of 13C-enriched fine-grained graphitic material has been studied by using a set of experimental tools such as scanning electron microscopy, Raman scattering, X-ray diffraction, X-ray photoelectron and near-edge X-ray absorption fine structure spectroscopies, and solid-state nuclear magnetic resonance (NMR) spectroscopy. The material has been annealed at a temperature of 1200 or 1500 °C using a stabilizing pressure of 5 GPa. It shown, that addition of small amount of water during the annealing at 1200 °C results in a better local atomic ordering of carbon material and increases the hydrocarbon fraction. Well-ordered graphite crystals enriched with 13C isotope are formed on the surface of nickel ampule at 1500 °C. An increase in processing time from 2 to 15 h decreases the defect density and improves the graphitization level of the material.
KW - DIAMOND CRYSTAL-GROWTH
KW - RAMAN-SPECTROSCOPY
KW - CARBON
KW - TEMPERATURE
KW - CRYSTALLIZATION
KW - DISORDER
KW - METHANE
KW - FILMS
KW - WATER
UR - http://www.scopus.com/inward/record.url?scp=85054324044&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2018.09.065
DO - 10.1016/j.carbon.2018.09.065
M3 - Article
AN - SCOPUS:85054324044
VL - 141
SP - 323
EP - 330
JO - Carbon
JF - Carbon
SN - 0008-6223
ER -
ID: 17035348