FTIR and Raman Spectral Research on Metamorphism and Deformation of Coal
Joint Authors
Hou, Quan-Lin
Li, Zhuo
Li, Xiaoshi
Ju, Yiwen
Fan, Junjia
Source
Journal of Geological Research
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-10
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Earth Science , Water and Environment
Abstract EN
Under different metamorphic environments, coal will form different types of tectonically deformed coal (TDC) by tectonic stress and even the macromolecular structure can be changed.
The structure and composition evolution of TDC have been investigated in details using Fourier transform infrared spectroscopy and Raman spectroscopy.
The ductile deformation can generate strain energy via increase of dislocation in molecular structure of TDC, and it can exert an obvious influence on degradation and polycondensation.
The brittle deformation can generate frictional heat energy and promote the metamorphism and degradation, but less effect on polycondensation.
Furthermore, degradation affects the structural evolution of coal in lower metamorphic stage primarily, whereas polycondensation is the most important controlling factor in higher metamorphic stage.
Tectonic deformation can produce secondary structural defects in macromolecular structure of TDC.
Under the control of metamorphism and deformation, the small molecules which break and fall off from the macromolecular structure of TDC are replenished and embedded into the secondary structural defects preferentially and form aromatic rings by polycondensation.
These processes improved the stability of macromolecular structure greatly.
It is easier for ductile deformation to induce secondary structural defects than in brittle deformation.
American Psychological Association (APA)
Li, Xiaoshi& Ju, Yiwen& Hou, Quan-Lin& Li, Zhuo& Fan, Junjia. 2012. FTIR and Raman Spectral Research on Metamorphism and Deformation of Coal. Journal of Geological Research،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-483288
Modern Language Association (MLA)
Li, Xiaoshi…[et al.]. FTIR and Raman Spectral Research on Metamorphism and Deformation of Coal. Journal of Geological Research No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-483288
American Medical Association (AMA)
Li, Xiaoshi& Ju, Yiwen& Hou, Quan-Lin& Li, Zhuo& Fan, Junjia. FTIR and Raman Spectral Research on Metamorphism and Deformation of Coal. Journal of Geological Research. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-483288
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-483288