13C NMR spectra of carbonaceous deposits
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T.M. Duncan; P. Winslow; A.T. Bell
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Article
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1983
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Elsevier Science
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English
β 512 KB
The 33C NhfR spectra of carbonaceous residue deposited on silica-supported rotheniurn catalysts during met&m&ion reveal the presence of at least three species. Based on chemical shifts, spin-spin relaxation times, and chemical treatment of the sampIes, these species are interpreted as carbides adsor