Nanotechnology,
Journal Year:
2023,
Volume and Issue:
34(41), P. 415401 - 415401
Published: July 4, 2023
The
aim
of
this
work
is
to
overcome
the
problem
agglomeration
and
volumetric
changes
observed
in
reduced
graphene
oxide
(rGO)
polyaniline
(PANI)
nanocomposites
responsible
for
inferior
capacitive
performance.
synergistic
effect
optimized
rGO,
PANI
tellurium
(Te)
ternary
nanocomposite
was
investigated
electrochemical
performances
energy
storage
devices.
For
purpose,
test
performed
at
low
molar
0.1M
H2SO4concentration
aqueous
electrolyte
a
two-electrode
cell
assembly.
studies
showed
that
specific
capacitance
564F
g-1is
attained
rGO/PANI
electrode
whose
performance
an
increase
by
adding
different
concentration
Te.
maximum
895
F
g-1at
10
mV
s-1was
rGO/PANI/Te50(GPT50)
with
negligible
charge
transfer
resistance,
knee
frequency
∼466.63
Hz,
response
time
∼17.39
s,
high
coulombic
efficiency
∼92%
power
densities
41Whkg-1and
3679Wkg-1with
cyclic
stability
∼91%
after
5000
GCCD
cycles
respectively.
result
material
indicated
combination
Te
rGO
can
be
used
enhance
supercapacitor
electrodes.
This
novel
composition
has
overall
improved
materials
thus
as
suitable
candidate
Materials,
Journal Year:
2023,
Volume and Issue:
16(12), P. 4202 - 4202
Published: June 6, 2023
The
hydrothermal
synthesis
of
a
nanosized
NiCo2O4
oxide
with
several
levels
hierarchical
self-organization
was
studied.
Using
X-ray
diffraction
analysis
(XRD)
and
Fourier-transform
infrared
(FTIR)
spectroscopy,
it
determined
that
under
the
selected
conditions,
nickel-cobalt
carbonate
hydroxide
hydrate
composition
M(CO3)0.5(OH)·0.11H2O
(where
M-Ni2+
Co2+)
is
formed
as
semi-product.
conditions
semi-product
transformation
into
target
were
by
simultaneous
thermal
analysis.
It
found
means
scanning
electron
microscopy
(SEM)
main
powder
fraction
consists
hierarchically
organized
microspheres
3-10
μm
in
diameter,
individual
nanorods
are
observed
second
powder.
Nanorod
microstructure
further
studied
transmission
(TEM).
A
film
printed
on
surface
flexible
carbon
paper
(CP)
using
an
optimized
microplotter
printing
technique
functional
inks
based
obtained
shown
XRD,
TEM,
atomic
force
(AFM)
crystalline
structure
microstructural
features
particles
preserved
when
deposited
substrate.
electrode
sample
characterized
specific
capacitance
value
420
F/g
at
current
density
1
A/g,
loss
during
2000
charge-discharge
cycles
10
A/g
10%,
which
indicates
high
material
stability.
established
proposed
technology
enables
efficient
automated
formation
corresponding
miniature
nanostructures
promising
components
for
planar
supercapacitors.
Nanotechnology,
Journal Year:
2023,
Volume and Issue:
34(41), P. 415401 - 415401
Published: July 4, 2023
The
aim
of
this
work
is
to
overcome
the
problem
agglomeration
and
volumetric
changes
observed
in
reduced
graphene
oxide
(rGO)
polyaniline
(PANI)
nanocomposites
responsible
for
inferior
capacitive
performance.
synergistic
effect
optimized
rGO,
PANI
tellurium
(Te)
ternary
nanocomposite
was
investigated
electrochemical
performances
energy
storage
devices.
For
purpose,
test
performed
at
low
molar
0.1M
H2SO4concentration
aqueous
electrolyte
a
two-electrode
cell
assembly.
studies
showed
that
specific
capacitance
564F
g-1is
attained
rGO/PANI
electrode
whose
performance
an
increase
by
adding
different
concentration
Te.
maximum
895
F
g-1at
10
mV
s-1was
rGO/PANI/Te50(GPT50)
with
negligible
charge
transfer
resistance,
knee
frequency
∼466.63
Hz,
response
time
∼17.39
s,
high
coulombic
efficiency
∼92%
power
densities
41Whkg-1and
3679Wkg-1with
cyclic
stability
∼91%
after
5000
GCCD
cycles
respectively.
result
material
indicated
combination
Te
rGO
can
be
used
enhance
supercapacitor
electrodes.
This
novel
composition
has
overall
improved
materials
thus
as
suitable
candidate
