[Applause]
it is interesting fascinating to carry
out research activities as a chemical
engineer the history of technological
development have seen the advent of
different materials one such material
that is making a tremendous impact in
all fields of science today is graphene
so this graphene is available from our
day-to-day activities which we use today
which is the pencil
so this graphene has exceptional
physical and chemical properties that
has been discovered from the pencil
trace and is expected to make remarkable
changes on the contribution to human
society so graphene is discovered by the
school of physics professors and her guy
and casiano Oslo so they just
synthesized this graphene by just using
a piece of pencil and just marking them
as a layer and by using a simple scotch
tape by extracting the layer by layer of
this graphite and finally they get the
graphene if you could see the end
material graphene is just a single sheet
of carbon as you could see the structure
is just a plain sheet which makes the
transport of substances across the
surface much more faster with less
resistance than other conventional
carbon materials available today as a
result of this structure this material
has found to be extensive properties
like the best electrical conductor the
better mechanical strength than steel
and Mac and best endurance and other
stability characteristics so as a result
of this physical and chemical properties
this graphene is getting enhanced
retention in
different applications like smartphones
electronic sensors are medical and
biological fits except on etc my project
is based on using this graphene for
energy applications and how we are going
to use in a safe and environmental
friendly manner
yes energy energy is playing a dominant
role in our day-to-day activities we
need this electrical energy to power our
laptops smartphones to run our house
code and even industrial appliances did
we notice that the demand for energy
keeps increasing day by day so we use
the different sorts of devices like the
batteries internal combustion engines
and super capacitors to power our needs
but all these devices have significant
drawbacks in one or more different forms
if you take the case of batteries and
internal combustion engines we have the
severe problem of the pollution and
material disposal techniques some may
argue that we have like renewable energy
sources like the tidal and solar energy
yes we do have but they are expensive at
the same time we have the problem with
engineering installation I mean they
have severe problems when it comes to
end-user applications so what are the
impact or the result of using these
devices it’s a pollution we have been
using them for a long time so what is
our target of the human society its
energy in a safe and environmentally
friendly manner so we need to look for a
new device and one such device is a fuel
cell in which my project is based on the
review else’ll is a device which
produces electrical energy by using
simple liquid fuels as alcohols
so you just feed alcohol into system
until end you get electrical energy so
this fuel cell operates in a safe and
environmental friendly manner that there
is no release of harmful pollutants
during its operation then this operates
in a zero noise mode that there is no
noise generator during its operation
which is like significant when you take
the case of internal combustion engines
you generate like heavy noise when you
go for start-up on end and the
infrastructure it is much more simpler
and very simple to make it to an
end-user application so these factors
make the fuel cell has an edge or an
advantage over conventional energy
sources use these days if you take the
closer look into the operation of the
fuel cell this is the engine room of the
fuel cell the consists of mechanical
components like electrodes and the
membranes assemble together to form the
engine room so I just feed the methanol
solution and I can utilize air which
available abundant in our atmosphere so
as a result of this chemical reaction
taking place we have the flow of the
electrons and the protons which are
responsible for the output power output
so we researchers work with different
materials to enhance the rate of the
reaction just to improve the power
efficiency of the fuel so that’s the
fuel cells have a significant edge or
advantage one of the main entrance or
the obstacle preventing the commercial
aspect of the fuel cells is a crossover
phenomena because we use the liquid fuel
one of the drawbacks here is the liquid
fuel has a tendency to diffuse from one
region to another region as a result of
this diffusion we have the undesired
reaction taking place in an ideal case
this methanol should react only on one
side but this has the tendency to move
to the other side as a result I have the
undersea reaction so one of the
strategies I just used force I had a
barrier layer just to prevent the
passage or the movement of the methanol
but we in a membrane aspect to we as a
research has faced several problems we
have to take care of two things one is
the good guy which is transfer of the
the proton and we also need to prevent
the movement of methanol so researchers
are facing we have been facing four
difficulties for so many decades to
create a balance of this good guy and to
prevent undersea reaction so we have
been using like so many materials like
nanotubes the Quechan block I mean like
forefathers of the graphene material so
our idea based on discussions with the
School of Physics at the National
graphene Institute we found the
properties of graphene can be also be
tuned for the fuel cell application
which can make great impact for energy
industries so what we did was we used
the single layer of graphene on one side
of the the fuel cell just to impede the
flow of methanol and to a surprise we
found so tremendous improvement in
performance of energy system up to 50
percent
this is considered remarkable
improvement when you compare to other
carbon materials or other materials used
so far in the history of you also so as
you could see this is the actual power
performance scope of the fuel cell this
fuel cell produces power so we
characterized them in terms of power
density we extract the energy and we get
is the power density the blue one
indicates the engine-room using the
materials supplied from the company the
standard system so when they added the
graphene layer to the standard system
the power was shooting from 50 to 75
milli watt per cm square this has been
considered a significant milestone in
the fuel cell research at the same time
we need to remember that the graphene is
a first 2d material ever discovered the
thickness it can be determined like
maybe thousand times ten
than the human hair so when I used a
fuel cell using the graphene actually I
can’t determine the thickness from bein
naked ice so I need to go for highly
sophisticated techniques to actually
conform the thickness so remember so
apart from this tremendous performance
improvement there is a possibility for
all the energy devices use these days to
undergo a massive reduction in size
overall of using the graphene in the
fuel cell we get enhanced power output
in a safe and environmentally friendly
manner also we generate the water which
is the characteristic the future of the
fuel cell apart from the in addition to
all these things we have the possibility
for all these devices to undergo a
thousand times reduction in size imagine
you can think of the laptops the smart
phones or any other devices that
produces power to undergo your massive
reduction in size so based on the
results obtained we are trying to
collaborate with the companies to use
this actual fuel cell for the automotive
industrial and like mobile applications
as well so if this graphene is properly
utilized and more research is carried
out this graphene could make the fuel
cell stand as a significant energy
device when as under the competitor 2
batteries super capacitors or internal
combustion engines and even renewable
energy sources the future could be
realized in such a way that piece of
graphene paper could be used to power
our homemade and industrial appliances
in a safe and a friendly manner so we
below this graphene could make a
remarkable changes to the human society
in which we perceive the energy device
thank you
[Applause]
it is interesting fascinating to carry
out research activities as a chemical
engineer the history of technological
development have seen the advent of
different materials one such material
that is making a tremendous impact in
all fields of science today is graphene
so this graphene is available from our
day-to-day activities which we use today
which is the pencil
so this graphene has exceptional
physical and chemical properties that
has been discovered from the pencil
trace and is expected to make remarkable
changes on the contribution to human
society so graphene is discovered by the
school of physics professors and her guy
and casiano Oslo so they just
synthesized this graphene by just using
a piece of pencil and just marking them
as a layer and by using a simple scotch
tape by extracting the layer by layer of
this graphite and finally they get the
graphene if you could see the end
material graphene is just a single sheet
of carbon as you could see the structure
is just a plain sheet which makes the
transport of substances across the
surface much more faster with less
resistance than other conventional
carbon materials available today as a
result of this structure this material
has found to be extensive properties
like the best electrical conductor the
better mechanical strength than steel
and Mac and best endurance and other
stability characteristics so as a result
of this physical and chemical properties
this graphene is getting enhanced
retention in
different applications like smartphones
electronic sensors are medical and
biological fits except on etc my project
is based on using this graphene for
energy applications and how we are going
to use in a safe and environmental
friendly manner
yes energy energy is playing a dominant
role in our day-to-day activities we
need this electrical energy to power our
laptops smartphones to run our house
code and even industrial appliances did
we notice that the demand for energy
keeps increasing day by day so we use
the different sorts of devices like the
batteries internal combustion engines
and super capacitors to power our needs
but all these devices have significant
drawbacks in one or more different forms
if you take the case of batteries and
internal combustion engines we have the
severe problem of the pollution and
material disposal techniques some may
argue that we have like renewable energy
sources like the tidal and solar energy
yes we do have but they are expensive at
the same time we have the problem with
engineering installation I mean they
have severe problems when it comes to
end-user applications so what are the
impact or the result of using these
devices it’s a pollution we have been
using them for a long time so what is
our target of the human society its
energy in a safe and environmentally
friendly manner so we need to look for a
new device and one such device is a fuel
cell in which my project is based on the
review else’ll is a device which
produces electrical energy by using
simple liquid fuels as alcohols
so you just feed alcohol into system
until end you get electrical energy so
this fuel cell operates in a safe and
environmental friendly manner that there
is no release of harmful pollutants
during its operation then this operates
in a zero noise mode that there is no
noise generator during its operation
which is like significant when you take
the case of internal combustion engines
you generate like heavy noise when you
go for start-up on end and the
infrastructure it is much more simpler
and very simple to make it to an
end-user application so these factors
make the fuel cell has an edge or an
advantage over conventional energy
sources use these days if you take the
closer look into the operation of the
fuel cell this is the engine room of the
fuel cell the consists of mechanical
components like electrodes and the
membranes assemble together to form the
engine room so I just feed the methanol
solution and I can utilize air which
available abundant in our atmosphere so
as a result of this chemical reaction
taking place we have the flow of the
electrons and the protons which are
responsible for the output power output
so we researchers work with different
materials to enhance the rate of the
reaction just to improve the power
efficiency of the fuel so that’s the
fuel cells have a significant edge or
advantage one of the main entrance or
the obstacle preventing the commercial
aspect of the fuel cells is a crossover
phenomena because we use the liquid fuel
one of the drawbacks here is the liquid
fuel has a tendency to diffuse from one
region to another region as a result of
this diffusion we have the undesired
reaction taking place in an ideal case
this methanol should react only on one
side but this has the tendency to move
to the other side as a result I have the
undersea reaction so one of the
strategies I just used force I had a
barrier layer just to prevent the
passage or the movement of the methanol
but we in a membrane aspect to we as a
research has faced several problems we
have to take care of two things one is
the good guy which is transfer of the
the proton and we also need to prevent
the movement of methanol so researchers
are facing we have been facing four
difficulties for so many decades to
create a balance of this good guy and to
prevent undersea reaction so we have
been using like so many materials like
nanotubes the Quechan block I mean like
forefathers of the graphene material so
our idea based on discussions with the
School of Physics at the National
graphene Institute we found the
properties of graphene can be also be
tuned for the fuel cell application
which can make great impact for energy
industries so what we did was we used
the single layer of graphene on one side
of the the fuel cell just to impede the
flow of methanol and to a surprise we
found so tremendous improvement in
performance of energy system up to 50
percent
this is considered remarkable
improvement when you compare to other
carbon materials or other materials used
so far in the history of you also so as
you could see this is the actual power
performance scope of the fuel cell this
fuel cell produces power so we
characterized them in terms of power
density we extract the energy and we get
is the power density the blue one
indicates the engine-room using the
materials supplied from the company the
standard system so when they added the
graphene layer to the standard system
the power was shooting from 50 to 75
milli watt per cm square this has been
considered a significant milestone in
the fuel cell research at the same time
we need to remember that the graphene is
a first 2d material ever discovered the
thickness it can be determined like
maybe thousand times ten
than the human hair so when I used a
fuel cell using the graphene actually I
can’t determine the thickness from bein
naked ice so I need to go for highly
sophisticated techniques to actually
conform the thickness so remember so
apart from this tremendous performance
improvement there is a possibility for
all the energy devices use these days to
undergo a massive reduction in size
overall of using the graphene in the
fuel cell we get enhanced power output
in a safe and environmentally friendly
manner also we generate the water which
is the characteristic the future of the
fuel cell apart from the in addition to
all these things we have the possibility
for all these devices to undergo a
thousand times reduction in size imagine
you can think of the laptops the smart
phones or any other devices that
produces power to undergo your massive
reduction in size so based on the
results obtained we are trying to
collaborate with the companies to use
this actual fuel cell for the automotive
industrial and like mobile applications
as well so if this graphene is properly
utilized and more research is carried
out this graphene could make the fuel
cell stand as a significant energy
device when as under the competitor 2
batteries super capacitors or internal
combustion engines and even renewable
energy sources the future could be
realized in such a way that piece of
graphene paper could be used to power
our homemade and industrial appliances
in a safe and a friendly manner so we
below this graphene could make a
remarkable changes to the human society
in which we perceive the energy device
thank you
[Applause]
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