Influence of Pre-Oxidation on the Morphology of Mesocarbon Microbeads

Abstract:

Mesocarbon microbeads (MCMB) were prepared from medium coal tar pitch by hot-treatment under certain conditions. The TG, SEM, EDX, Laser Particle Size Analysis and XRD methods were used to characterize the MCMB. The results have been shows that the pre-oxidation treatment before carbonization has a considerable effect on the morphology of MCMB; compared with the MCMB which have no pre-oxidation treatment, the surface of MCMB with pre-oxidation treatment became smoother and the surface defects decreased obviously. Pre-oxidation treatment have been narrowed the particle size distribution of MCMB. Briefly, the average particle size of MCMB with pre-oxidation is 19.751 μm, slightly larger than the untreated MCMB which has the average particle size of 18.442 μm.

• Periodical: Key Engineering Materials (Volume 697)
• Pages: 785-788
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.697.785
• Online since: July 2016
• Authors: Ya Ming Zhu, Xue Fei Zhao*, Li Juan Gao, Shi Quan Lai, Yun Yun Lian
• Keywords: MCMB, Medium Temperature Coal Tar Pitch, Pre-Oxidation Treatment

References

[1] J.H. Yang, M.L. Jin, Material Review, 15 2001) 1-53.

[2] T.Q. Li, C.Y. Wang, J.M. Zheng, et al., New Carbon Mater., 19(2004): 281-287.

[3] H.Y. Ding, C.Y. Wang, M.M. Chen, et al., New Carbon Mater., 27(2012): 211-218.

[4] A. Concheso, M. Ggranda. M. Granda, et al. Electrochemica Acta, 50(2005): 1225-1232.

[5] C.C. Gao, T.H. Li, Y.L. Cheng, et al., Carbon Techniques, 31(2012): A28-A32.