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academies
Journal of Materials Science and Nanotechnology | Volume: 3
March 20-21, 2019 | London, UK
Materials Science and Materials Chemistry
2
nd
International Conference on
B
esides multi-stacking or chemical vapor process, advanced
doping issues to be resolved arise for high energy and
power density storage with high stability and efficiency. The
open spacewith the uniformnano grasses displayed a high areal
capacitance, rate capability, energy density, and cyclic stability
due to the nanostructure enhancing fast ion and material
interactions, which are decorated porous three-dimensional
graphitic carbon foam as a supercapacitor electrode. The
assembled supercapattery (ASC) provides high specific
capacitance (90 F g
-1
), high energy density (24Wh kg
-1
) at power
density 830 W kg
-1)
, and long cycle life (specific capacitance
retention of 85% over 2000 cycles). The most charging/
discharging reaction of supercapacitor or supercapattary only
occurs at surface of electorodes. Doped nanomaterials induced
by oxygen related vacancy improve a retention efficiency.
Speaker Biography
Seong Chan Jun is professor in mechanical engineering, Yonsei University, Seoul, Korea
since 2008. He worked at Samsung Advanced Institute of Technology (SAIT) (2006-2008)
and Nanoscale Science and Engineering Center (NSEC) at Columbia University, NY USA
(2001-2005) after finish graduate study from Cornell University (Ithaca N.Y.), and Columbia
University (New York, NY) for Ph.D. respectively. His specialty is “optimizing hybrid nano-
structures for electronics, photonics, and energy electrodes”, focused on physically and
chemically modifying nano-structure for science and engineering. Especially graphene and
nano-particles are implemented for high efficient devices.
e:
scj@yonsei.ac.krSeong Chan Jun
Yonsei University, South Korea
Doped nano-materials for supercapacitor