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The new MWCNTs–rhenium nanocomposite
Author(s) -
DobrzańskaDanikiewicz Anna D.,
Wolany Weronika,
Benke Grzegorz,
Rdzawski Zbigniew
Publication year - 2014
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201451360
Subject(s) - rhenium , carbon nanotube , nanocomposite , materials science , raman spectroscopy , chemical engineering , inert gas , carbon fibers , transmission electron microscopy , nanotechnology , chemical vapor deposition , nanoparticle , surface modification , composite material , metallurgy , composite number , physics , engineering , optics
A new nanocomposite was fabricated during the undertaken research efforts, consisting of carbon nanotubes and rhenium nanoparticles. Its structure was examined using transmission electron microscopy (TEM) and the structure modification was confirmed using Raman spectroscopy. Energy dispersive spectroscopy (EDS) was employed to determine the chemical composition of the nanocomposite obtained. Carbon nanotubes with the diameter of 10–20 nm and the length of 10–30 µm, fabricated with the chemical catalytic vapor deposition (CCVD) method, were utilized for the experiment. A fabrication process of the carbon nanocomposite was started with functionalization of multi‐walled carbon nanotubes by oxidization, and then they were placed in a medium containing rhenium precursors. The mixture was further filtered and placed in a heat‐resistant vessel. Rhenium nanocrystals were deposited permanently on carbon nanotubes as a result of a high‐temperature reduction process in the atmosphere of hydrogen and in the shield of inert gas.