Open AccessEffect of “cobalt–carbon nanotubes” catalysts on anthracene coking
Author(s) -
В. В. Чесноков,
A. S. Chichkan,
Valentin N. Parmon
Publication year - 2019
Publication title -
doklady akademii nauk. rossijskaâ akademiâ nauk
Language(s) - English
Resource type - Journals
ISSN - 0869-5652
DOI - 10.31857/s0869-56524844451-454
Subject(s) - anthracene , coke , catalysis , cobalt , carbon nanotube , chemical engineering , materials science , carbon fibers , coating , scanning electron microscope , chemistry , nanotechnology , organic chemistry , metallurgy , composite material , composite number , engineering
Coking of anthracene at 400–600°C in the presence or in the absence of a cobalt catalyst supported on carbon nanotubes (CNTs) was studied for the first time. The coking products were examined by X-ray diffraction and electron microscopy. The CoO-CNTs catalyst considerably (by 50°C) decreased the temperature of the onset of coking and accelerated the coke formation. The presence of CoO-CNTs changed the coke morphology. Whereas coking of pure anthracene affords ~1 micron spherical particles of poorly crystallized carbon, in the presence of the catalyst, a carbon “coating” covering the CNT surface is formed.