Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Transition from melting to carbonization of naphthalene, anthracene, pyrene and coronene at high pressure. / Chanyshev, Artem D.; Litasov, Konstantin D.; Shatskiy, Anton F. и др.
в: Physics of the Earth and Planetary Interiors, Том 270, 01.09.2017, стр. 29-39.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Transition from melting to carbonization of naphthalene, anthracene, pyrene and coronene at high pressure
AU - Chanyshev, Artem D.
AU - Litasov, Konstantin D.
AU - Shatskiy, Anton F.
AU - Sharygin, Igor S.
AU - Higo, Yuji
AU - Ohtani, Eiji
N1 - Publisher Copyright: © 2017 Elsevier B.V.
PY - 2017/9/1
Y1 - 2017/9/1
N2 - We have examined the decomposition of naphthalene, anthracene, pyrene and coronene at high pressures and temperatures. Experiments were performed using in situ X-ray diffraction in multianvil apparatus at the SPring-8 synchrotron radiation facility. In the pressure range of 1.5–3.7 GPa decomposition of studied polycyclic aromatic hydrocarbons (PAHs) was detected at 773–973 K. Melting was identified only for naphthalene at 727–730 K and 1.5 GPa. Quenched products analyzed by Raman spectroscopy consist of nano- and microcrystalline graphite. The triple points between solid, liquid and carbonized (decomposed) PAHs were placed at 1–2 GPa and 800–850 K. Analyses of P-V-T data indicate that anthracene and coronene possess very low thermal expansion at 1.3–4.2 GPa. The obtained melting and decomposition parameters for PAH restrict PT-conditions of their formation by local impacts during early planetary history, as well as provide evidences for secondary origin of PAH inclusions in natural mantle minerals from kimberlites.
AB - We have examined the decomposition of naphthalene, anthracene, pyrene and coronene at high pressures and temperatures. Experiments were performed using in situ X-ray diffraction in multianvil apparatus at the SPring-8 synchrotron radiation facility. In the pressure range of 1.5–3.7 GPa decomposition of studied polycyclic aromatic hydrocarbons (PAHs) was detected at 773–973 K. Melting was identified only for naphthalene at 727–730 K and 1.5 GPa. Quenched products analyzed by Raman spectroscopy consist of nano- and microcrystalline graphite. The triple points between solid, liquid and carbonized (decomposed) PAHs were placed at 1–2 GPa and 800–850 K. Analyses of P-V-T data indicate that anthracene and coronene possess very low thermal expansion at 1.3–4.2 GPa. The obtained melting and decomposition parameters for PAH restrict PT-conditions of their formation by local impacts during early planetary history, as well as provide evidences for secondary origin of PAH inclusions in natural mantle minerals from kimberlites.
KW - Carbon
KW - Compressibility
KW - High-pressure
KW - In-situ X-ray diffraction
KW - Polycyclic aromatic hydrocarbons
KW - Raman spectroscopy
KW - ORGANIC-MOLECULES
KW - P-T CONDITIONS
KW - POLYCYCLIC AROMATIC-HYDROCARBONS
KW - HIGH-TEMPERATURE
KW - X-RAY-DIFFRACTION
KW - HERBIG-AE/BE STARS
KW - CRYSTAL MESOPHASE DEVELOPMENT
KW - O-H FLUID
KW - CHROMATOGRAPHY-MASS SPECTROMETRY
KW - EARTHS UPPER-MANTLE
UR - http://www.scopus.com/inward/record.url?scp=85030572330&partnerID=8YFLogxK
U2 - 10.1016/j.pepi.2017.06.011
DO - 10.1016/j.pepi.2017.06.011
M3 - Article
AN - SCOPUS:85030572330
VL - 270
SP - 29
EP - 39
JO - Physics of the Earth and Planetary Interiors
JF - Physics of the Earth and Planetary Interiors
SN - 0031-9201
ER -
ID: 9894767