Graphene hybrid composite is produced through pyrolysis of a solid carbon source using a specific catalyst. At different catalyst concentrations, different carbon nanostructures like carbon nanotubes or graphene platelets are produced. Graphene hybrid composite produced with an intermediate catalyst concentration shows high conductivity, higher than carbon nanotubes or graphene flakes alone. It has applications as an electrode material for lithium batteries, in super capacitors, and as a conductive material.

1. Introduction: GRAPHENE HYBRID COMPOSITE (GHC)
GRAPHENE HYBRIDE COMPOSITE Graphene is a sheet of carbon atoms bound together with double electron bonds (called a sp2 bond) in a thin
film only one atom thick. Atoms in graphene are arranged in a honeycomb-style lattice pattern. Graphene hybrid composite is prepared by the
pyrolysis of solid carbon source using specific catalyst . At low range of catalyst, the pyrolysis products are dominated with carbon nano tube
(CNT) . At very high range of catalyst, the products are dominated with graphene platelets which are comprised of a few layers . The graphene
hybride composite is produced with catalyst range between carbon nano tube and graphene flakes, showing very high conductivity beyond that of
carbon nano tube and graphene flakes
0.18
9000
0.16 D G 2D
BULK RESISTIVITY (ABU)
8000
0.14 7000
6000
0.12
MWNT 5000
0.1 4000
SWNT
3000
0.08 graphene nano
platelets 2000
0.06 1000
0
0.04 0 500 1000 1500 2000 2500 3000 3500
XRD of GHC
GHC Raman spectroscopy of GHC
0.02
0
ELECTRICAL RESISTIVITY OF GHC
TEM IMAGE OF GHC
APPLICATIONS:
1. Electrode materials for Li battery
ADVANTAGES:
2. Composite material for super capacitor
1. Highly electrical conductivity (6.5X
3. Bipolar plates for fuel cell
more than single walled nano tube
4. Conductive lacquer, ink,
SWNT, 4.5X more than graphene)
5. Transparent conductor
6. EM shielding materials
2. Reasonable high surface area
7. Charge transport materials for solar cell
8. Nano cable for effective energy storage
3. Easily produced at large scale
9. Electro catalyst for fuel cell