Инд. авторы:	Chanyshev A.D., Litasov K.D., Shatskiy A.F., Ohtani E.
Заглавие:	Study of pocyclic aromatic hydrocarbons at a pressure of 6–9 GPa with X-ray diffraction and synchrotron radiation
Библ. ссылка:	Chanyshev A.D., Litasov K.D., Shatskiy A.F., Ohtani E. Study of pocyclic aromatic hydrocarbons at a pressure of 6–9 GPa with X-ray diffraction and synchrotron radiation // Doklady Earth Sciences. - 2014. - Vol.458. - Iss. 2. - P.1277-1280. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X1410016X; РИНЦ: 23987470; SCOPUS: 2-s2.0-84906868071; WoS: 000344874000017;
Реферат:	eng: This work is one of the stages of study of the deep C-O-H fluid and investigates the behavior of polycyclic aromatic hydrocarbons (PAHs) under conditions of the Earth’s mantle. The composition of the C-O-H fluid in the upper mantle is estimated as a mixture of H2O and CH4 with a minor amount of H2 and heavier hydrocarbons. Some theoretical calculations show that the stability of heavy hydrocarbons (alkanes, alkenes, and PAHs) increases with an increase in temperature. This paper presents the results of an XRD study of PAHs stability in multianvil presses on a Spring-8 accelerator (Japan). The primary compositions were chosen according to the abundance of PAHs in nature. In situ diffraction spectrums were recorded to determine the PAHs stability field. It was established that the PAHs become unstable at a pressure of 6–9 GPa and a temperature of 873–1073 K. © 2014, Pleiades Publishing, Ltd.
Ключевые слова:	methane; PAH; pressure effect; upper mantle; water; X-ray diffraction; mantle chemistry; Polycyclic aromatic hydrocarbons; XRD studies; Upper mantle; Hydrocarbons; SPring-8; Polycyclic aromatic hydrocarbons (PAHS); Aromatic compounds; Aromatic hydrocarbons; Diffractometers; Synchrotron radiation; X ray diffraction; Heavy hydrocarbons; In-situ diffraction; Multi-anvil press; Theoretical calculations; mantle structure;
Издано:	2014
Физ. характеристика:	с.1277-1280