C-13 solid-state n.m.r. spectra of samples of 14 coals and their pyridine residues representative of the three depositions in the Shanxi province of the People's Republic of China are described in detail. The results confirm those of previous infrared spectroscopy in showing these vitrinite-inertinite coals to have similar chemical structures and aromaticities to coals of the same rank from Euramerica and Gondwana
The 13C n.m.r. technique of cross polarization with magic angle spinning was applied to seven coals ...
A total of twelve coal samples at bituminous rank from China were studied using a combination of ele...
The solid state high resolution 13 C CP/MAS NMR technology was employed to analyze O-containing fun...
Twelve samples of coal from the three major depositional episodes which occurred on the North China ...
Two bituminous coals were selected on the basis of petrographic analysis as having high concentratio...
The pyridine extracts and the residues of four Turkish coals were investigated in the solid state by...
The structural characteristics of twenty-nine Australian coals and their hydroliquefaction products ...
4 pages, 2 figures, 1 table, 15 references.Solid-state 15N NMR is applied in a study of various coal...
The soluble organic material present in a set of 12 coal samples representing 3 major episodes of co...
Abstract: Optical and infra-red microscopy, diffusion reflectance infra-red spectrometry and solid-s...
Carbon-13 CP/MAS NMR was used to study a selection of fifty-seven New Zealand coals and ten Australi...
This report covers the progress made on the title project for the project period. The study of coal ...
This report covers the progress made on the title project for the project period. The study of coal ...
The structure evolution characteristics of high-organic-sulfur (HOS) coals with a wide range of rank...
The cross-polarized magic-angle-spinning NMR (CPMAS-NMR) technique was used in this work to assess t...
The 13C n.m.r. technique of cross polarization with magic angle spinning was applied to seven coals ...
A total of twelve coal samples at bituminous rank from China were studied using a combination of ele...
The solid state high resolution 13 C CP/MAS NMR technology was employed to analyze O-containing fun...
Twelve samples of coal from the three major depositional episodes which occurred on the North China ...
Two bituminous coals were selected on the basis of petrographic analysis as having high concentratio...
The pyridine extracts and the residues of four Turkish coals were investigated in the solid state by...
The structural characteristics of twenty-nine Australian coals and their hydroliquefaction products ...
4 pages, 2 figures, 1 table, 15 references.Solid-state 15N NMR is applied in a study of various coal...
The soluble organic material present in a set of 12 coal samples representing 3 major episodes of co...
Abstract: Optical and infra-red microscopy, diffusion reflectance infra-red spectrometry and solid-s...
Carbon-13 CP/MAS NMR was used to study a selection of fifty-seven New Zealand coals and ten Australi...
This report covers the progress made on the title project for the project period. The study of coal ...
This report covers the progress made on the title project for the project period. The study of coal ...
The structure evolution characteristics of high-organic-sulfur (HOS) coals with a wide range of rank...
The cross-polarized magic-angle-spinning NMR (CPMAS-NMR) technique was used in this work to assess t...
The 13C n.m.r. technique of cross polarization with magic angle spinning was applied to seven coals ...
A total of twelve coal samples at bituminous rank from China were studied using a combination of ele...
The solid state high resolution 13 C CP/MAS NMR technology was employed to analyze O-containing fun...
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