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Electronic state of carbon in carbonaceous chondrite meteorites
Author(s) -
Okotrub A. V.,
Bulusheva L. G.,
Guselnikov A. V.,
Kolesov B. A.,
Dikov Yu. P.,
Molodtsov S. L.
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200776125
Subject(s) - meteorite , chondrite , carbonaceous chondrite , murchison meteorite , raman spectroscopy , x ray photoelectron spectroscopy , x ray absorption spectroscopy , graphite , chemistry , diamond , carbon fibers , absorption spectroscopy , analytical chemistry (journal) , astrobiology , materials science , physics , nuclear magnetic resonance , environmental chemistry , organic chemistry , quantum mechanics , composite material , composite number , optics
Electronic state of carbon occurred in the carbonaceous chondrite meteorites has been probed using X‐ray emission (XES), X‐ray absorption (XAS), and X‐ray photoelectron (XPS) spectroscopy. The XES and XAS spectra of seven meteorites Orgueil, Mighei, Murchison, Murray, Staroe Boriskino, Isna, and Kainsaz were compared to the graphite and detonation nanodiamonds spectra. The carbon in the meteorites was found to be presented by the graphite‐like component mainly, which ratio to the diamond‐like component decreases with the meteorite age. The strong charging effect was found in the XPS C 1s‐spectra of the youngest meteorites Kainsaz and Isna that can be due to encapsulation of nanocarbon granules within the dielectric silicate matrix. The presence of the letter species in the chondrites was supported by Raman spectroscopy. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)