Enhancement in graphitization of coal tar pitch by functionalized carbon nanotubes
作者： H. F. Arani , A. R. Mirhabibi , S. Collins , R. Daroughegi , A. Khalife Soltani
DOI: 10.1039/C6RA25441A
关键词: Carbon 、 Nanotechnology 、 Carbon nanotube 、 Graphite 、 Chemical engineering 、 Crystallite 、 Raman spectroscopy 、 Materials science 、 Scanning electron microscope 、 Transmission electron microscopy 、 Carbon black
摘要: In this study, the influence of addition carbon nanotubes (CNTs) and black (CB) on graphitization temperature microstructure coal tar pitch (CTP) are investigated. X-ray diffraction patterns residues indicate that minimum interlayer spacing (d002) values obtained at 2000 °C for CTP/CNT. Moreover, Raman spectrum CTP/CNTs is similar to graphite, relative intensity lines shows CTP/CB less graphitized 2000 °C. addition, scanning electron microscopy images show when CB added sample textures tend disordered morphologies. However, CNTs, not only improve morphology CTP, but also act as nuclei growth graphite flaky crystallites. The role CTP/CNT interface defects CNTs degree studied using transmission microscopy, a mechanism in presence proposed.
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