Application of 2-D and dipolar dephasing /sup 13/C NMR techniques to the study of structural variations in coal macerals

Technical Report · Sat Jan 01 04:00:00 EST 1983

OSTI ID:5500622

Pugmire, R J; Woolfenden, W R; Mayne, C L; Karas, J; Grant, D M

Data are reported on a series of whole coals and coal macerals using conventional cross-polarization magic spinning nuclear magnetic spectroscopy (CP/MAS), dipolar dephasing, and 2-D dipolar dephasing techniques. These data provide a wealth of new structural information and demonstrate that multiple pulse and 2-D spectroscopic techniques can be utilized on complex carbonaceous materials. Data obtained on maceral samples separated by the density gradient centrifugation method are also presented. 15 references, 1 figure, 1 table.

• Research Organization: Utah Univ., Salt Lake City (USA)
• DOE Contract Number: FG22-82PC50812
• OSTI ID: 5500622
• Report Number(s): CONF-830807-14; ON: DE84000512
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
CARBONACEOUS MATERIALS
CENTRIFUGATION
COAL
DATA
DENSITY
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
INFORMATION
MACERALS
MATERIALS
NMR SPECTRA
NUMERICAL DATA
PHYSICAL PROPERTIES
SEPARATION PROCESSES
SPECTRA
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS