¹H n.m.r. relaxation in bituminous coal and semicoke

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DOIResolve DOI: http://doi.org/10.1016/0016-2361(84)90290-4
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TypeArticle
Journal titleFuel
Volume63
Issue4
Pages522524; # of pages: 3
SubjectCoal; Semicoke; n.m.r.
AbstractTemperature and frequency-dependent proton relaxation measurements, in conjunction with spin concentrations determined by e.s.r., have shown that for fresh and oxidized coal the relaxation mechanism involves spin-diffusion to paramagnetic centres and to rotating methyl groups on alkyl chains. ¹H relaxation in semicokes is more complex; probably both direct relaxation to paramagnetic centres as well as spin-diffusion contribute.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
NoteAuthor affiliated with the NRC Division of Chemistry at time of publication
Peer reviewedYes
NRC number51941
NPARC number14411464
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Record identifierf0b826aa-2125-445e-b20d-38432052bb48
Record created2010-03-01
Record modified2016-05-09
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