NDLI: Enhancement in graphitization of coal tar pitch by functionalized carbon nanotubes

Content Provider	Royal Society of Chemistry (RSC)
Author	Soltani, A. Khalife Arani, H. F. Mirhabibi, A. R. Westwood, A. Daroughegi, R. Naghizadeh, R. Collins, S. Riahi-Noori, N. Aghababazadeh, R.
Copyright Year	2017
Abstract	In this study, the influence of the addition of carbon nanotubes (CNTs) and carbon black (CB) on the graphitization temperature and microstructure of coal tar pitch (CTP) are investigated. X-ray diffraction patterns of carbon residues indicate that minimum interlayer spacing (d002) values are obtained at 2000 °C for CTP/CNT. Moreover, the Raman spectrum of CTP/CNTs is similar to graphite, and the relative intensity of Raman lines shows that CTP/CB is less graphitized at 2000 °C. In addition, scanning electron microscopy images show that when CB is added sample textures tend to disordered morphologies. However, CNTs, not only improve the morphology of CTP, but also act as nuclei for the growth of graphite flaky crystallites. The role of the CTP/CNT interface and the defects of CNTs on the graphitization degree are studied using transmission electron microscopy, and a mechanism for the graphitization of CTP, in the presence of CNTs, is proposed.
Starting Page	5533
Ending Page	5540
Page Count	8
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	7
Issue Number	9
Journal	RSC Advances
DOI	10.1039/c6ra25441a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Carbon nanotube Carbon black Citizens band radio Transmission electron microscopy Coal tar Graphite Raman Raman spectroscopy Carbon Scanning electron microscope CTP
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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