A small ppt about graphene. Gives you clear introduction

1. M. KUMARASAMY COLLEGE OF
ENGINEERING ,KARUR
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2. Graphene The future
material
Presented by
S.Ragavendra
R.Ramkumar
Guided by
Mr.M.Vijaya Kumar
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3. Content
 Definition.
 Introduction.
 Invention of Graphene.
 Stage of Graphene now.
 Area of uses in Graphene.
 future material
 Role of Graphene in thermodynamics.
 Pros of Graphene.
 Cons of Graphene.
 Conclusion.
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4. Definition
 Form of carbon consisting planar sheets.
 Atoms which arranged in Honey comb shaped
lattice.
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5. About Graphene
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6. Introduction
 The building block of graphite is known as
Graphene.
It is a one-atom-thick layer of carbon atoms
arranged in a hexagonal lattice.
Graphene is a remarkable substance on its own -
with a multitude of astonishing properties.
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7. Contd…
It owns the title “wonder material”
It was introduced in 1986 by chemists Hanns-Peter
Boehm, Ralph Setton and Eberhard Stumpp.
 It is a combination of the word graphite and the suffix -ene,
referring to polycyclic aromatic hydrocarbons.
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8. Invention of Graphene
Single-layer Graphene was explored theoretically
by P. R. Wallace in 1947.
It was first unambiguously produced and identified
in 2004, by the group of Andre Geim and Konstantin
Novoselov
For inventing this super material they got Nobel
prize on 2010
Using the graphite powder in pencil and a scotch
tape they made this Graphene
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9. Stage of Graphene
now
Most of the Graphene produced today is used
for R&D in Universities and companies
Some Graphene based products are entering the
market, but mass production of Graphene
hasn't been achieved yet.
Scanning probe microscopy image of Graphene.
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10. Graphene is an extremely diverse material, and
can be combined with other elements
(including gases and metals) to produce
different materials with various superior
properties.
Researchers all over the world continue to
constantly investigate and patent Graphene to
learn its various properties and possible
applications
Areas of uses in
Graphene
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11. Contd..
 touchscreens (for LCD or OLED displays)
 transistors
 computer chips
 batteries
 energy generation
 supercapacitors
 DNA sequencing
 water filters
 antennas
 solar cells
 Spintronics-related products.
And many more……
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12. future material
It is a better conductor than copper. So the usage of copper is
reduced in future
It stores more energy inside them, so in future solar vehicles
and rapid recharging batteries may be made by scientist
By using Graphene made filters we can easily filter the salts
and other elements in sea water and normal waters
By the usage of Graphene solar panels we can store more
energy than our normal solar panels without using any
batteries.
And more combination of new elements were made using this
Graphene.
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13. Graphene in thermodynamics
 The 21st century has brought a lot of new results
related to Graphene.
 Apparently, Graphene has been characterized from all
points of view except surface science and,
especially, surface thermodynamics.
 This report aims to close this gap.
 Since Graphene is the first real two-dimensional solid,
a general formulation of the thermodynamics of two-
dimensional solid bodies is given.
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14. Applications of Graphene
It include lightweight, thin, flexible, yet incredibly lightweight
to, electric/photonics circuits, solar cells, and various medical,
chemical and industrial processes.
Hong and his team in South Korea pioneered the synthesis of
large-scale Graphene films using chemical vapour
deposition (CVD) on thin nickel layers.
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15. Contd…
 It has been used as a reinforcing agent to improve the
mechanical properties of biodegradable polymeric
nanocomposites for engineering bone tissue applications.
Graphene is reported to have enhanced PCR by increasing
the yield of DNA product.
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16. A small video about
Graphene
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17. Pros of Graphene
It is ultralight and also immensely tough.
 It is two hundred times stronger compare to steel and incredibly
flexible.
 It is thinnest material possible and it is completely transparent
which can transmit more than 90 % of the light.
 It is ultimate conductor and it can function as perfect barrier. The
helium can not even pass through the Graphene.
It can transfer electrons at much faster rate compare to silicon.
It can pass at the speed of 1000 Kms/sec which is about 30 times
fast compare to silicon. 8/17/2018
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18. cons of Graphene
Even this material having more advantages it has some
dis-advantages too
Creation of high quality Graphene is expensive and
complex process.
In order to grow Graphene, toxic chemicals are being
used at high temperatures. Due to this it exhibits toxic
qualities.
 It is susceptive to oxidative atmosphere.
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19. Reference
We have refered in more areas about Graphene
www.wikipedia.com
www.Graphene-info.in
www.Graphene-flagship.com
www.youtube.com/lmesacademy
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20. 8/17/2018
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21. Queries to clear your doubt
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