Energy & Fuels,
Год журнала:
2023,
Номер
37(3), С. 1577 - 1632
Опубликована: Янв. 11, 2023
The
exponential
population
growth
on
earth
has
put
an
enormous
strain
energy
resources,
which
come
in
various
forms
like
fossil
fuels,
geothermal
energy,
and
so
on.
Currently,
fuels
are
fulfilling
most
of
our
requirements.
However,
their
nonrenewable
nature
the
production
toxic
greenhouse
gases
have
forced
research
community
to
explore
different
renewable
nontoxic
resources.
Among
hydrogen
is
considered
important
alternative
source.
(H2)
from
water
a
nonspontaneous
process.
Therefore,
processes
photocatalysis
photoelectrocatalysis
employed
carry
out
splitting.
For
these
processes,
there
dire
need
develop
substances
that
can
act
as
catalysts.
applications,
metals
(particularly
noble
metals)
metal
oxides
(mostly
transition
oxides)
shown
promising
catalytic
applications
past
decade.
Herein,
we
discuss
progress
made
synthesis
oxide
nanostructures,
followed
by
discussion
regarding
advances
application
nanostructures
photocatalysts,
electrocatalysts,
photoelectrocatalysts.
From
standpoint,
it
found
doping
heterostructure
development
advantageous
methods
used
date
improve
efficiency
nanostructures.
Also,
dye-sensitized
catalysts
for
powerful
method
highly
efficient
photocatalysts
electro-/photoelectrocatalysts.
Finally,
limitations
challenges
facing
practical
also
discussed.
Fluorinated
graphene,
an
up‐rising
member
of
the
graphene
family,
combines
a
two‐dimensional
layer‐structure,
wide
bandgap,
and
high
stability
attracts
significant
attention
because
its
unique
nanostructure
carbon–fluorine
bonds.
Here,
we
give
extensive
review
recent
progress
on
synthetic
methods
C–F
bonding;
additionally,
present
optical,
electrical
electronic
properties
fluorinated
electrochemical/biological
applications.
exhibits
various
types
bonds
(covalent,
semi‐ionic,
ionic
bonds),
tunable
F/C
ratios,
different
configurations
controlled
by
including
direct
fluorination
exfoliation
methods.
The
relationship
between
types/amounts
specific
properties,
such
as
opened
thermal
chemical
stability,
dispersibility,
semiconducting/insulating
nature,
magnetic,
self‐lubricating
mechanical
conductivity,
is
discussed
comprehensively.
By
optimizing
bonding
character
can
be
utilized
for
energy
conversion
storage
devices,
bioapplications,
electrochemical
sensors
amphiphobicity.
Based
current
progress,
propose
potential
problems
well
future
challenge
C‐F
character.
This
will
provide
guidance
controlling
bonds,
developing
fluorine‐related
effects
promoting
application
graphene.
Advanced Engineering Materials,
Год журнала:
2018,
Номер
20(7)
Опубликована: Апрель 23, 2018
The
use
of
graphene‐based
composite
as
anti‐corrosion
and
protective
coatings
for
metallic
materials
is
still
a
provocative
topic
worthy
debate.
Nickel–graphene
nanocomposite
have
been
successfully
fabricated
onto
the
mild
steel
by
electrochemical
co‐deposition
technique.
This
research
demonstrates
properties
nickel–graphene
influenced
different
electrodeposition
current
densities.
effect
deposition
density
on
the;
surface
morphologies,
composition,
microstructures,
grain
sizes,
mechanical,
are
executed.
coarseness
deposited
increases
with
increasing
density.
carbon
content
in
first
then
decreases
further
improved
mechanical
superior
performance
obtained
at
peak
value
9
A
dm
−2
.
incorporation
graphene
sheets
into
nickel
metal
matrix
lead
to
enhance
micro
hardness,
roughness,
adhesion
strength
produced
coatings.
Furthermore,
presence
coating
exhibits
reduced
sizes
enhanced
erosion–corrosion
resistance
properties.
