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Journal of Materials Science and Nanotechnology | Volume: 3
March 20-21, 2019 | London, UK
Materials Science and Materials Chemistry
2
nd
International Conference on
Role of trioctylphosphine on quantum size effect in Ni nanolattice
Gunadhor S Okram
UGC-DAE Consortium for Scientific Research, India
N
ickel nanoparticles are of special interest for their
attractive potential applications in magnetic resonance
imaging, magnetic fluids, catalysts, magnetic recording media,
rechargeable batteries, optoelectronics, conducting paints,
magnetic hyperthermia, and other biomedical applications.
When these nanoparticles are dispersed in a liquid medium
for example, they tend to agglomerate/ disperse due to van
der Waals or other attractive forces. Similarly, what kind of
forces they may need to form their own periodic lattice in solid
state and how this will influence their overall properties may
be intriguing. We have investigated some of these aspects.
They revealed that trioctylphosphine is responsible for their
nanolattice formation, how the Ni atoms are arranged in these
nanoparticles, how their electronic density of states changes,
nearest-neighbour atoms are changed with particle size and
why their quantum size effect is unique in heat capacity, not
in electronic or magnetic properties. Some of these shall be
discussed briefly.
e:
okram@csr.res.in