High-field NMR studies of Argonne Premium coals
Conference
·
OSTI ID:441411
- Wuhan Institute of Physics (China)
Seven Argonne Premium coals were studied by cross-polarization (CP)-combined rotation and multiple-pulse spectroscopy (CRAMPS) in a 9.4-T magnetic field. The apparent carbon aromaticities of the coals obtained at high field via static CP spectra agreed well with those measured at low field, that is, 2.3-T. A detailed discussion of the spectral distortion in the total suppression of sidebands (TOSS) experiment at low spinning rates is given. The experimental evidence presented in this chapter show that static CP measurements are promising for coal studies. 18 refs., 5 figs., 3 tabs.
- OSTI ID:
- 441411
- Report Number(s):
- CONF-891206--
- Country of Publication:
- United States
- Language:
- English
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