The effect of PTSA on preparation of mesophase carbon spheres
Journal Title: Carbon - Science and Technology - Year 2009, Vol 2, Issue 2
Abstract
Mesophase spheres have been synthesized by heat-treating a medium coal tar pitch at 420 ºC for 2 hours in the presence of P-toluene sulphonic acid (PTSA). The effect of PTSA on synthesis of mesophase spheres had been studied. It was found that PTSA promotes the formation of mesophase spheres in coal tar pitch through accelerating polymerization of aromatic hydrocarbons. PTSA content between 3 and 5 wt. % gave similar size spheres, beyond which as the PTSA content increases, the size of spheres increases. 5 wt. % PTSA gives uniform spheres with small size, good spherical shape and smooth surface.
Authors and Affiliations
Youliang Cheng, Tiehu Li, Deqi Jing, Fengjuan Li, Qiang Zhuang
Keywords
Related Articles
- EP ID EP49875
- DOI -
- Views 238
- Downloads 0
A study on machining parameters for wire electrical discharge machining of circular contouring in stir cast AA6063/SiC composites
Wire electrical discharge machining (WEDM) is used in machining electric conductive materials for intricate shapes and profiles. This paper presents an experimental investigation on the influence of machining conditions...
Effect of thermoplastic polyurethane content on properties of PC/TPU blend filled with Montmorillonite
The present study was taken up to investigate the effect of addition of Montmorillonite (MMT) to Poly carbonate/Thermoplastic polyurethane (PC/TPU) blends. A master batch of PC/MMT (70/30) was prepared using Hake Rheomix...
Advanced Modeling of the Electrostatic Field Coupling in Graphene Nanoribbons
The field coupling of Graphene NanoRibbons (GNR), which is very important from the view point of realistic configurations / applications such as in field effect transistor, interconnects, plasmonic transmission lines, is...
Process parameters optimization for synthesis of methyl ester from sunflower oil using Taguchi technique
In this work, transesterification of sunflower oil for obtaining biodiesel was studied. Taguchi’s methodology (L9 orthogonal array) was selected to optimize the most significant variables (methanol, catalyst concentratio...
Preparation of tailored carbons with meso- and micro- porosity via template synthesis route
A low cost templating approach to making non-ordered carbons with a tailored meso/micropore structure is described. A series of mesoporous carbons was prepared from polyfurfuryl alcohol and phenolic resin precursors by a...