Second-order Raman spectroscopy of char during gasification
Raman spectroscopy has been widely used in the structural characterization of various carbonaceous materials. Through spectral deconvolution, FT-Raman spectroscopy has been used to gain insights into the transformation of char structure during gasification, providing new evidence to understand the c...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/29947 |
| _version_ | 1848752947166445568 |
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| author | Wang, S. Li, T. Wu, L. Zhang, L. Dong, Li Hu, Xun Li, Chun-Zhu |
| author_facet | Wang, S. Li, T. Wu, L. Zhang, L. Dong, Li Hu, Xun Li, Chun-Zhu |
| author_sort | Wang, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Raman spectroscopy has been widely used in the structural characterization of various carbonaceous materials. Through spectral deconvolution, FT-Raman spectroscopy has been used to gain insights into the transformation of char structure during gasification, providing new evidence to understand the char gasification mechanisms. These studies have mainly focused on the first-order Raman spectra in the range between 800 and 1800 cm− 1. Additional information can be gained from the second-order Raman spectra. This study aims to develop a new spectral deconvolution scheme for the second-order Raman spectra of chars from the gasification of coal and biomass. As our initial attempt, the second-order Raman spectra of chars in the range between 2000 and 3300 cm− 1 were deconvoluted into 7 bands representing the main structural features in the chars. Both total Raman peak area and band area ratios are used to gain information about the structural features of char. Using chars from the gasification of WA Collie sub-bituminous coal in CO2 and H2O as examples, the implication of the first-order and second-order Raman spectral data in terms of gasification mechanisms is discussed. |
| first_indexed | 2025-11-14T08:16:43Z |
| format | Journal Article |
| id | curtin-20.500.11937-29947 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:16:43Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-299472017-09-13T15:29:59Z Second-order Raman spectroscopy of char during gasification Wang, S. Li, T. Wu, L. Zhang, L. Dong, Li Hu, Xun Li, Chun-Zhu Raman spectroscopy has been widely used in the structural characterization of various carbonaceous materials. Through spectral deconvolution, FT-Raman spectroscopy has been used to gain insights into the transformation of char structure during gasification, providing new evidence to understand the char gasification mechanisms. These studies have mainly focused on the first-order Raman spectra in the range between 800 and 1800 cm− 1. Additional information can be gained from the second-order Raman spectra. This study aims to develop a new spectral deconvolution scheme for the second-order Raman spectra of chars from the gasification of coal and biomass. As our initial attempt, the second-order Raman spectra of chars in the range between 2000 and 3300 cm− 1 were deconvoluted into 7 bands representing the main structural features in the chars. Both total Raman peak area and band area ratios are used to gain information about the structural features of char. Using chars from the gasification of WA Collie sub-bituminous coal in CO2 and H2O as examples, the implication of the first-order and second-order Raman spectral data in terms of gasification mechanisms is discussed. 2015 Journal Article http://hdl.handle.net/20.500.11937/29947 10.1016/j.fuproc.2014.11.002 Elsevier fulltext |
| spellingShingle | Wang, S. Li, T. Wu, L. Zhang, L. Dong, Li Hu, Xun Li, Chun-Zhu Second-order Raman spectroscopy of char during gasification |
| title | Second-order Raman spectroscopy of char during gasification |
| title_full | Second-order Raman spectroscopy of char during gasification |
| title_fullStr | Second-order Raman spectroscopy of char during gasification |
| title_full_unstemmed | Second-order Raman spectroscopy of char during gasification |
| title_short | Second-order Raman spectroscopy of char during gasification |
| title_sort | second-order raman spectroscopy of char during gasification |
| url | http://hdl.handle.net/20.500.11937/29947 |