Effect of Different Catalysts on Properties of Coal Tar Pitch Modified by Cinnamaldehyde
Cinnamaldehyde- (CMA-) modified coal tar pitches (CTPs) are prepared in the presence of acids. In this paper, the effect of boric acid and p-toluene sulfonic acid on the pyrolysis and graphitization process of CMA-modified CTP was studied. The pyrolysis process was studied by Fourier transform infra...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
|
| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2019/6040173 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832549141604990976 |
|---|---|
| author | Wenjuan Zhang Wenhong Tian Shihua Song Xianren Zeng Peng Gao Lili Mao Tiehu Li |
| author_facet | Wenjuan Zhang Wenhong Tian Shihua Song Xianren Zeng Peng Gao Lili Mao Tiehu Li |
| author_sort | Wenjuan Zhang |
| collection | DOAJ |
| description | Cinnamaldehyde- (CMA-) modified coal tar pitches (CTPs) are prepared in the presence of acids. In this paper, the effect of boric acid and p-toluene sulfonic acid on the pyrolysis and graphitization process of CMA-modified CTP was studied. The pyrolysis process was studied by Fourier transform infrared spectroscopy, thermogravimetric analysis and derivative thermogravimetry, and polarized-light microscopy. In addition, the graphitization process was studied by X-ray diffraction and Raman spectroscopy. The results indicate the carbon yield of CMA-modified CTP with boric acid as catalyst (B7C10) is higher than that of CMA-modified CTP with p-toluene sulfonic acid as a catalyst (P7C10). In addition, under the same experimental condition (heated at 400°C and held for 1 h), the mesophase spheres of B7C10 are more regular than those of P7C10 and the largest diameter of the mesophase spheres can reach to 40 um. Further, after the graphitization process, the graphitization degree of B7C10 is higher than that of P7C10. So, it is more effective to modify CTP with boric acid as a catalyst. |
| format | Article |
| id | doaj-art-0c287864a231487aa871c600a5a21d67 |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-0c287864a231487aa871c600a5a21d672025-02-03T06:12:07ZengWileyJournal of Spectroscopy2314-49202314-49392019-01-01201910.1155/2019/60401736040173Effect of Different Catalysts on Properties of Coal Tar Pitch Modified by CinnamaldehydeWenjuan Zhang0Wenhong Tian1Shihua Song2Xianren Zeng3Peng Gao4Lili Mao5Tiehu Li6School of Mechanical and Materials Engineering, Jiujiang University, Jiujiang 332005, ChinaLibrary of Jiujiang University, Jiujiang University, Jiujiang 332005, ChinaSchool of Mechanical and Materials Engineering, Jiujiang University, Jiujiang 332005, ChinaSchool of Mechanical and Materials Engineering, Jiujiang University, Jiujiang 332005, ChinaSchool of Mechanical and Materials Engineering, Jiujiang University, Jiujiang 332005, ChinaSchool of Electronic Engineering, Jiujiang University, Jiujiang 332005, ChinaDepartment of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, ChinaCinnamaldehyde- (CMA-) modified coal tar pitches (CTPs) are prepared in the presence of acids. In this paper, the effect of boric acid and p-toluene sulfonic acid on the pyrolysis and graphitization process of CMA-modified CTP was studied. The pyrolysis process was studied by Fourier transform infrared spectroscopy, thermogravimetric analysis and derivative thermogravimetry, and polarized-light microscopy. In addition, the graphitization process was studied by X-ray diffraction and Raman spectroscopy. The results indicate the carbon yield of CMA-modified CTP with boric acid as catalyst (B7C10) is higher than that of CMA-modified CTP with p-toluene sulfonic acid as a catalyst (P7C10). In addition, under the same experimental condition (heated at 400°C and held for 1 h), the mesophase spheres of B7C10 are more regular than those of P7C10 and the largest diameter of the mesophase spheres can reach to 40 um. Further, after the graphitization process, the graphitization degree of B7C10 is higher than that of P7C10. So, it is more effective to modify CTP with boric acid as a catalyst.http://dx.doi.org/10.1155/2019/6040173 |
| spellingShingle | Wenjuan Zhang Wenhong Tian Shihua Song Xianren Zeng Peng Gao Lili Mao Tiehu Li Effect of Different Catalysts on Properties of Coal Tar Pitch Modified by Cinnamaldehyde Journal of Spectroscopy |
| title | Effect of Different Catalysts on Properties of Coal Tar Pitch Modified by Cinnamaldehyde |
| title_full | Effect of Different Catalysts on Properties of Coal Tar Pitch Modified by Cinnamaldehyde |
| title_fullStr | Effect of Different Catalysts on Properties of Coal Tar Pitch Modified by Cinnamaldehyde |
| title_full_unstemmed | Effect of Different Catalysts on Properties of Coal Tar Pitch Modified by Cinnamaldehyde |
| title_short | Effect of Different Catalysts on Properties of Coal Tar Pitch Modified by Cinnamaldehyde |
| title_sort | effect of different catalysts on properties of coal tar pitch modified by cinnamaldehyde |
| url | http://dx.doi.org/10.1155/2019/6040173 |
| work_keys_str_mv | AT wenjuanzhang effectofdifferentcatalystsonpropertiesofcoaltarpitchmodifiedbycinnamaldehyde AT wenhongtian effectofdifferentcatalystsonpropertiesofcoaltarpitchmodifiedbycinnamaldehyde AT shihuasong effectofdifferentcatalystsonpropertiesofcoaltarpitchmodifiedbycinnamaldehyde AT xianrenzeng effectofdifferentcatalystsonpropertiesofcoaltarpitchmodifiedbycinnamaldehyde AT penggao effectofdifferentcatalystsonpropertiesofcoaltarpitchmodifiedbycinnamaldehyde AT lilimao effectofdifferentcatalystsonpropertiesofcoaltarpitchmodifiedbycinnamaldehyde AT tiehuli effectofdifferentcatalystsonpropertiesofcoaltarpitchmodifiedbycinnamaldehyde |