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Materials Science and Nanotechnology | Volume 2
May 21-22, 2018 | New York, USA
International Conference on
Nanoscience & Technology
C
arbon nanostructures such as carbon nanotubes
(CNTs) and graphene are impressive materials thanks
to their remarkable properties: lightness, high chemical
stability, strengthness (100-300 times stronger than steel),
high specific surface area, high thermal and electrical
conductivity. Thus, the possible application fields of carbon
nanomaterials are numerous, for instance, mechanics,
medicine, electronics. They are now available in high quantity
at competing prices thanks to the development of scale-
up synthesis methods, in recent years. However, chemical
conversion of carbon precursors to CNTs by Chemical Vapor
Deposition (CVD) requires metal catalysts that inevitably
remain in the as-produced samples. Moreover, both CNTs
and graphene being hydrophobic are highly difficult to
process. They have tendency to aggregate and restack,
which leads to a dramatic decrease of performances. In
order to fully benefit of their outstanding properties to
develop new materials or devices, well-adapted and efficient
post-synthesis chemical treatments have to be applied to
these carbon nanomaterials. Particularly, we have precisely
investigated their purification and functionalization. Our
one-step and gas-phase purification treatment is efficient to
prepare super-pure carbon nanotubes. Their covalent and/
or non-covalent surface modifications has been controlled
thanks to complementary techniques. We will show how
these chemical treatments can be useful for further practical
utilization of these carbon nanomaterials.
Speaker Biography
Nawal Berrada completed her Master in 2016 after a project related to the recovery
of precious metals from jewelry waste. She has also developed a green alternative
method to clean jewels without cyanide-based chemicals under the supervision
of Dr. E. Meux at University of Lorraine, Metz. She started her PhD in 2016 at the
Institut Jean Lamour (University of Lorraine, CNRS, Nancy) under the mentorship of
Dr. A. Desforges and Dr. B. Vigolo. Her work is centered around developing chemical
processes on carbon nanomaterials for the purpose of overcoming processing issues.
Her activities are mainly devoted to carbon nanotubes and graphenic materials for
their selective purification, surface modifications, dispersion and processing. She
has developed efficient and innovative chemical treatments to CNTs and her current
activities are focused on the further use of the prepared CNTs and graphene, especially
as nanofluids for heat transfer improvement.
e:
nawal.berrada@univ-lorraine.frDevelopment of chemical treatments to improve processability of carbon nanomaterials (carbon
nanotubes and graphene)
Nawal Berrada
CNRS-University of Lorraine, France