Synthesis of Porous Carbon Material and its Use for Growing Carbon Nanotubes

Abstract

The scales of porous carbon materials usage are constrained by their considerably high cost. Therefore, development of new methods for production of porous carbon with the necessary complex of properties from cheap raw materials is actual. Also, porous carbon materials can be used for growth of carbon nanotubes as a matrices of catalyst particles. Herein, the method of fabrication porous carbon materials from waste of oil industry and their use as a matrices of catalyst particles to growth of CNT was developed. CNTs was synthesized by CVD using as hydrocarbon source - propan-butane gas mixture, as catalyst - Ni particles at 650°C, 700°C, 750°C, 800°C. Obtained carbon materials was investigated by Raman spectroscopy and by scanning electron microscope. Investigations on the properties of the obtained porous materials show soot particles sedimented in pores reduce well nanoparticles of metals from salts which act as nuclei for the growth of multiwall carbon nanotubes during pyrolysis of hydrocarbons by CVD method.

A novel purification method of activated carbon-supported carbon nanotubes using a mixture of Ca(OH)2 and KOH as the ablation agent

“…12 Activated carbon as a relatively cheap and porous material can also be used as an efficient support for CNTs due to its abundant pores, ability to prevent the migration and agglomeration of metal atoms on its surface. 13 In our previous study, 14 activated carbon is veried to be a better nickel catalyst support than alumina for the growth of CNTs. Furthermore, the production of CNTs with activated carbon as the support will not encounter the problem of residual metal support in CNTs.…”

Raman Characteristics of Multiwall Carbon Nanotubes on Diatomite

“…The catalytic chemistry of nickel and species of carbon materials with a wide range of characteristics, made possible the creation of a large number of metal catalysts on carbon carriers [4]. At work [5] a technique for producing a porous carbon material utilized to grow CNTs have been developed.…”

Self-Supporting Hybrid Supercapacitor Electrodes Based on Carbon Nanotube and Activated Carbons

“…Another type of CNTs is multi-wall CNTs (MWCNTs) that are available at low cost of about 100 USD per kg, but they have some disadvantages such as smaller conductivity and smaller surface area of 300 m 2 /g. MWCNTs can be synthesized by CVD method using different types of hydrocarbons, for example, propane-butane gas mixture and Ni particle catalyst at 650-800 °C [11].…”