Preparation and Structural Characterization of a Needlelike Carbon from the Refined Coal Tar Pitch
A refined coal tar pitch with softening point of 33℃ was obtained by a mixed solvent extraction method.The pitch was carbonized at 500℃ to get micrometer carbon material with needlelike structure.The carbonized produce was further calcined at 1500℃ for 30h.The resultant product was characterized by SEM,OM,EDS and XRD.Experimental results indicated that a mixed solvent extraction method could effectively get rid of primary quinoline insoluble (QI).SEM and OM examinations showed that there were more than 70% fibrous structures and a small amount mosaic structures.The size of the fibrous structure was greater than 150gin in length and less than 30μm in width.The result of EDS exhibited that the material mainly consisted of carbon.XRD analysis revealed that there was a sharp diffraction peaks at 26.5℃,which was corresponded to the (002) plane of graphite structure.
Needlelike carbon Coal-tar pitch Carbonization
Xuefei Zhao Shiquan Lai Yaru zhang Shulin Liu Lijuan Gao Hongwu Yu
School of Chemical Engineering,University of Science and Technology Liaoning,185 Qianshan Zhong Road Anshan Hot-energy Academe of Sinosteel Corporation,301 Anqian Road,Anshan 114051,China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
282-283
2007-05-10(万方平台首次上网日期,不代表论文的发表时间)