just a info about the graphene, and its manufacturing process and its progress

1. NEW METHOD FOR
PRODUCTION OF
“GRAPHENE” IN LARGE
QUANTITY_ BY MIT
7740 RAVI BHIVRA
7741 ANIKET DEVDIGA
7742 STEVEN D’SOUZA
7743 JOHNEY XAVIER

2. WHAT IS “GRAPHENE” ?
• Graphene is, basically, a single atomic layer of graphite; an
abundant mineral which is an allotrope of carbon that is made up
of very tightly bonded carbon atoms organized into a hexagonal
lattice.

3. WHAT IS SO AMAZING ABOUT GRAPHENE ?
 Fundamental properties :- 2d compound material having thermal stability.
 Electronic properties :- zero-overlap semimetal with very high electrical
conductivity.
Mechanical strength :- graphene is the strongest material ever discovered,
with an ultimate tensile strength of 130,000,000,000 Pascals (or 130
gigapascals).
Optical properties :- Graphene’s ability to absorb a rather large 2.3% of
white light

4. THE METHODS ‘BEFORE’ FOR PRODUCTION
OF “GRAPHENE”
 Reduction of graphite oxide.
 Sugar method.
 Hesjedal and colleagues used a modified tube furnace for R2R
production of multi-layer graphene.
 Yamada and colleagues presented a custom microwave plasma CVD
system.
 Kobayashi and colleagues produced high quality, predominantly
single-layer graphene on Cu foil.
 In 2010, Bae et al.produced uniform graphene films on 30"

5. AND THE ‘METHOD’ NOW
 Department of Mechanical Engineering, University of Michigan
MIT , presents the design of a concentric tube (CT) reactor for
roll-to-roll chemical vapor deposition (CVD) on flexible
substrates, and its application to continuous production of
graphene on copper foil.

6. PRODUCTION OPERATION

7. APPLICATIONS OF “GRAPHENE”
 Optical Electronics
 Ultra filtration
 Composite Materials
 Photovoltaic Cells
 Bioengineering & Energy Storage.

8. IMPORTANT LINKS
http://www.gizmag.com/mit-graphene-large-
quantities/37635/
 http://www.graphenea.com/pages/graphene-
properties#.VfbNBhGqqkp
 http://www.nature.com/articles/srep10257
http://encyclopedia.che.engin.umich.edu/Pages/Reactors/CVD
Reactors/CVDReactors.html
http://news.mit.edu/2015/manufacture-continuous-rolls-
graphene-0521

9. THANK YOU