Nano scale holes in graphene
('Nanowindows') can selectively select which type of air molecules will pass through.
Scientists theoretically proved concerted motion of the Nano window-rim to selectively allow molecules to pass, in association energy-efficiently
and fast way. This brings up new possibilities to create a sophisticated molecular separation membrane technology.
The mechanism of separation by nano windows is that the atomic vibration of the Nano
window-rim changes the effective Nano widow size. When the rim of
one side is
deviated and the other is deviated to the opposite direction, the
effective Nano window size becomes larger than once the rim doesn't move.
This result is extremely predominant for molecules
of atomic number eight,
nitrogen, argon, inducing associate efficient separation.
Nanowindows
were prepared by oxidation treatment. Thus their rims are passivated
with chemical element and atomic number eight atoms, which have essential role for
selective permeation.
The difference in
permeation rate is associated with the
interaction of the molecule with the Nano widow rim and graphene. The mechanism
is explained using interaction
energy and wave motion
of the atomic number eight and chemical element at the nanowindows
rim. This selectivity sensitively
depends on the structure and property of a gas molecule and the pure mathematics (size and shape) and rim-chemistry of
nanowindows. Development of the dynamic nanowindows-embedded graphene can save large amount of energy and provide safer and high efficient process. This study shows the future direction of air separation.
If you have the latest updates and innovations
in Materials Science and Engineering fields join us at our upcoming annual congress. It’s
a great opportunity to network with the world’s leading Scientists and Academic
professionals, Young researchers, students. The theme of the conference
is “Using Novel Materials Exploring Different Crystallography Techniques”.
Keynote sessions by the world’s prominent professionals and oral presentations
and poster sessions on a wide range of Materials Science research.
Contact:
Jessica Mark
Program Manager | Crystallography Congress
2018
No comments:
Post a Comment