Fine Characterization of the Macromolecular Structure of Huainan Coal Using XRD, FTIR, 13C-CP/MAS NMR, SEM, and AFM Techniques.

Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry
Dun WuWenyong Zhang

Abstract

Research on the composition and structure of coal is the most important and complex basic research in the coal chemistry field. Various methods have been used to study the structure of coal from different perspectives. However, due to the complexity of coal and the limitations of research methods, research on the macromolecular structure of coal still lacks systematicness. Huainan coalfield is located in eastern China and is the largest coal production and processing base in the region. In this study, conventional proximate analysis and ultimate analysis, as well as advanced instrumental analysis methods, such as Fourier transform infrared spectroscopy (FITR), X-ray diffraction (XRD), 13C-CP/MAS NMR, and other methods (SEM and AFM), were used to analyze the molecular structure of Huainan coal (HNC) and the distribution characteristics of oxygen in different oxygen-containing functional groups (OCFGs) in an in-depth manner. On the basis of SEM observation, it could be concluded that the high-resolution morphology of HNC's surface contains pores and fractures of different sizes. The loose arrangement pattern of HNC's molecular structure could be seen from 3D AFM images. The XRD patterns show that the condensation degree of HNC's ...Continue Reading

References

Jun 2, 2012·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Orhan GeziciMuhsin Karaarslan

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Citations

Apr 4, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Dun WuJiangtao Li

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Methods Mentioned

BETA
X-ray
nuclear magnetic resonance
AFM
NMR

Software Mentioned

GaussAmp
AISN
PeakFit
Nanoscope Analysis
Origin
SmileView

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