Chemistry - An Asian Journal,
Journal Year:
2022,
Volume and Issue:
18(4)
Published: Dec. 28, 2022
Energy
storage
is
one
of
the
most
stimulating
requirements
to
keep
civilization
on
wheel
progress.
Supercapacitors
generally
exhibit
a
high-power
density,
have
maximum
life
cycle,
quick
charging
time,
and
are
eco-friendly.
Polyaniline
(PANI),
conductive
polymer,
considered
an
efficacious
electrode
material
for
supercapacitors
due
its
good
electroactivity,
including
pseudocapacitive
behavior.
Here,
we
present
fabrication
symmetric
supercapacitor
device
based
steel
mesh
electrodeposited
with
PANI.
Due
effective
conductivity,
porous
nature,
low
cost,
choice
as
current
collector
fabricate
high-performance
at
cost.
The
optimum
fabricated
has
high
specific
capacitance
∼353
mF
cm-2
.
Furthermore,
obtained
energy
density
∼26.4
μW
h
power
∼400
shows
stability,
initial
remained
almost
same
after
1000
charge/discharge
cycles.
PANI
promising
candidate
mass
production
wide
applications
cost
performance.
Small,
Journal Year:
2023,
Volume and Issue:
19(33)
Published: April 24, 2023
A
simple
and
scalable
method
to
fabricate
a
novel
high-energy
asymmetric
supercapacitor
using
tomato-leaf-derived
hierarchical
porous
activated
carbon
(TAC)
electrochemically
deposited
polyaniline
(PANI)
for
battery-free
heart-pulse-rate
monitor
is
reported.
In
this
study,
TAC
prepared
by
pyrolysis,
exhibiting
nanosheet-type
morphology
high
specific
surface
area
of
≈1440
m2
g-1
,
PANI
onto
cloth.
The
TAC-
PANI-
based
demonstrates
an
electrochemical
performance
superior
that
symmetric
supercapacitors,
delivering
capacitance
248
mF
cm-2
at
current
density
1.0
mA
.
developed
shows
energy
270
µWh
power
1400
µW
as
well
excellent
cyclic
stability
≈95%
retention
after
10
000
charging-discharging
cycles
while
maintaining
≈98%
Coulombic
efficiency.
Impressively,
the
series-connected
supercapacitors
can
operate
extremely
efficiently
upon
solar-panel
charging
under
regular
laboratory
illumination.
Small,
Journal Year:
2023,
Volume and Issue:
20(22)
Published: Dec. 27, 2023
Abstract
Developing
efficient,
lightweight,
and
durable
all‐solid‐state
supercapacitors
is
crucial
for
future
energy
storage
systems.
The
study
focuses
on
optimizing
electrode
materials
to
achieve
high
capacitance
stability.
This
introduces
a
novel
two‐step
pyrolysis
process
synthesize
activated
carbon
nanosheets
from
jute
sticks
(JAC),
resulting
in
an
optimized
JAC‐2
material
with
yield
(≈24%)
specific
surface
area
(≈2600
m
2
g
−1
).
Furthermore,
innovative
situ
synthesis
approach
employed
hybrid
nanocomposites
(NiCoLDH‐1@JAC‐2)
by
integrating
JAC
nickel‐cobalt‐layered
double
hydroxide
nanoflowers
(NiCoLDH).
These
serve
as
positive
the
negative
asymmetric
(HSCs),
exhibiting
remarkable
performance
metrics.
HSCs
of
750
F
,
capacity
209
mAh
(at
0.5
A
),
density
100
Wh
kg
250
W
)
using
PVA/KOH
solid
electrolyte,
while
maintaining
outstanding
cyclic
Importantly,
functional
theory
framework
utilized
validate
experimental
findings,
underscoring
potential
this
enhancing
HSC
enabling
large‐scale
production
transition
metal‐based
layered
hydroxides.
iScience,
Journal Year:
2024,
Volume and Issue:
27(2), P. 108786 - 108786
Published: Jan. 4, 2024
Micro-supercapacitors
(MSCs)
stand
out
in
the
field
of
micro
energy
storage
devices
due
to
their
high
power
density,
long
cycle
life,
and
environmental
friendliness.
The
key
improving
electrochemical
performance
MSCs
is
selection
appropriate
electrode
materials.
To
date,
both
composition
structure
materials
have
become
a
hot
research
topic,
it
urgent
compose
review
highlight
most
important
achievements,
major
challenges,
opportunities,
encouraging
perspectives
this
field.
In
review,
background
first
reviewed
followed
by
working
principles,
structural
classifications,
physiochemical
characterization
techniques.
Next,
various
preparation
methods
are
summarized,
relationship
between
MSC
discussed
depth.
Finally,
provides
comprehensive
suggestion
on
accelerating
development
facilitate
commercialization
MSCs.
Batteries,
Journal Year:
2024,
Volume and Issue:
10(5), P. 168 - 168
Published: May 20, 2024
Modern
research
has
made
the
search
for
high-performance,
sustainable,
and
efficient
energy
storage
technologies
a
main
focus,
especially
in
light
of
growing
environmental
energy-demanding
issues.
This
review
paper
focuses
on
pivotal
role
biomass-derived
carbon
(BDC)
materials
development
high-performance
metal-ion
hybrid
supercapacitors
(MIHSCs),
specifically
targeting
sodium
(Na)-,
potassium
(K)-,
aluminium
(Al)-,
zinc
(Zn)-ion-based
systems.
Due
to
their
widespread
availability,
renewable
nature,
exceptional
physicochemical
properties,
BDC
are
ideal
supercapacitor
electrodes,
which
perfectly
balance
sustainability
technological
advancement.
delves
into
synthesis,
functionalization,
structural
engineering
advanced
biomass-based
materials,
highlighting
strategies
enhance
electrochemical
performance.
It
elaborates
unique
characteristics
these
carbons,
such
as
high
specific
surface
area,
tuneable
porosity,
heteroatom
doping,
achieving
superior
capacitance,
density,
cycling
stability
Na-,
K-,
Al-,
Zn-ion
supercapacitors.
Furthermore,
compatibility
BDCs
with
electrolytes
facilitating
ion
transport
charge
mechanisms
critically
analysed.
Novelty
arises
from
comprehensive
comparison
across
systems,
unveiling
synergistic
effects
BDCs’
attributes
performance
each
type.
also
casts
current
challenges,
scalability,
cost-effectiveness,
consistency,
offering
insightful
perspectives
future
research.
underscores
transformative
potential
MIHSCs
paves
way
next-generation
that
both
high-performing
ecologically
friendly.
calls
continued
innovation
interdisciplinary
collaboration
explore
sustainable
thereby
contributing
advancing
green
technologies.
