Waste‐Derived Activated Carbon for Supercapacitors: Current Trends and Future Prospects
Energy Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 12, 2025
The
primary
challenge
for
supercapacitor
technology
lies
in
achieving
battery‐level
performance
while
reducing
costs.
Enhancing
energy
density
involves
strategic
adjustments
such
as
increasing
capacitance,
reliance
on
electrode–electrolyte
interactions,
or
boosting
cell
voltage,
dependent
electrolyte
stability.
Thus,
optimizing
requires
careful
electrode
material
design
and
selection.
Because
of
their
abundant
availability,
exceptional
performance,
simple
processing
methods,
various
naturally
occurring
bio‐wastes
industrial
wastes
have
been
explored
the
production
activated
carbon
supercapacitors.
Additionally,
agricultural
by‐products
sugarcane
bagasse,
rice
husk,
tea
waste,
coconut
shell,
peanut
lotus
stem,
hemp
fiber
show
promise
raw
materials
graphene
synthesis.
Life
cycle
assessments
beyond
greenhouse
gas
emissions
efficiency,
along
with
calibrated
evaluation
techniques
techno‐economic
analyses,
are
essential
meaningful
sustainability
comparisons.
rapid
expansion
bioenergy
sector
underscores
need
responsible
management
evaluations.
This
article
emphasizes
potential
waste‐derived
a
sustainable
efficient
Язык: Английский
Recent technological advancement in asymmetric supercapacitors: A comprehensive review
Journal of Power Sources,
Год журнала:
2025,
Номер
640, С. 236818 - 236818
Опубликована: Март 20, 2025
Язык: Английский
Experimental and Theoretical Investigation of Porous Carbon Nanospheres for Supercapacitor Application
Energy Storage,
Год журнала:
2025,
Номер
7(3)
Опубликована: Март 25, 2025
ABSTRACT
Activated
carbon
holds
a
promising
avenue
in
the
context
of
energy
storage
because
its
special
attributes
like
high
surface
area,
large
pore
volume,
and
ease
preparation.
Herein,
we
synthesized
activated
from
low‐cost
candle
soot
employed
it
as
an
electrode
for
supercapacitor
application.
Activation
resulted
specific
area
1679
m
2
g
−1
The
electrochemical
properties
(ACS)
unactivated
(CS)
are
evaluated
three‐electrode
setup
using
1
M
H
SO
4
electrolyte.
ACS
CS
exhibited
capacitance
467
180
F
at
current
density
A
,
respectively.
improved
performance
is
attributed
to
increase
upon
activation,
which
acts
reservoir
accommodate
number
electrolyte
ions.
Furthermore,
two‐electrode
studies
symmetric
cells
revealed
extraordinary
397
.
system
retained
82%
10,000
cycles
10
This
19.8
Wh
kg
power
574.8
W
We
performed
functional
theory
(DFT)
simulations
validate
experimental
observations
found
that
quantum
greater
than
CS.
barrier
ionic
diffusion
across
lower
CS,
indicating
mobility
activation.
Язык: Английский
Synergistic integration of MnCo2O4/MoS2 with rGO as positive electrode for enhanced electrochemical performance in asymmetric supercapacitors
Ionics,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 2, 2025
Язык: Английский
Electrochemical Fiber Electrode Fabrication by Spinning: State-of-the-Art and Perspectives
ACS electrochemistry.,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 7, 2025
Язык: Английский
Recent progress and challenges in photo-supercapacitors: A critical review along with future prospects
Journal of Energy Storage,
Год журнала:
2025,
Номер
123, С. 116696 - 116696
Опубликована: Апрель 23, 2025
Язык: Английский
Al/P doped MoS2 with high conductivity toward high-performance asymmetric supercapacitors
Journal of Alloys and Compounds,
Год журнала:
2025,
Номер
unknown, С. 181073 - 181073
Опубликована: Май 1, 2025
Язык: Английский
Unveiling the photo-physical properties of NaCl promoted large area WS2 monolayers
Journal of Applied Physics,
Год журнала:
2025,
Номер
137(20)
Опубликована: Май 23, 2025
Atomically
thin
layers
of
tungsten
disulfide
(WS2)
have
attracted
much
attention
due
to
their
unique
optical
and
electronic
properties.
The
controllable,
scalable,
cost-effective
development
defect-free
monolayers
WS2
for
the
fabrication
devices
remains
a
challenge.
A
few
experiments
indicated
efficacy
halide
salts
as
growth
promoters
low
temperature
monolayers.
However,
behavior
materials
grown
with
assistance
be
addressed
fully.
Herein,
large-area
synthesis
on
Si/SiO2
substrates
sodium
chloride
(NaCl)
promoter
in
chemical
vapor
deposition
process
is
reported.
Temperature-dependent
Raman
photoluminescence
(PL)
spectroscopy
monolayer
carried
out
from
77
433
K
reveals
phonon
softening
redshift
energy
bandgap
at
higher
temperatures.
effect
laser
power
PL
spectra
has
also
been
investigated,
demonstrating
spectral
changes
peak
shifts
laser-induced
heating
enhanced
excitations
across
gap.
comparative
study
dependent
yielded
threshold
beyond
which
sample
damage
may
occur
excessive
heating.
Electrostatic
gating
during
measurements
distinct
effects
doping
content
trionic
emission.
Furthermore,
photodetection
capability
demonstrated
under
532
nm
illumination,
exhibiting
good
responsivity
(∼400
A/W)
detectivity
(4.89
×
109
Jones).
This
comprehensive
analysis
provides
valuable
insights
into
its
potential
applications
optoelectronic
devices.
Язык: Английский
Additive Fabrication of Polyaniline and Carbon-Based Composites for Energy Storage
Polymers,
Год журнала:
2024,
Номер
16(23), С. 3369 - 3369
Опубликована: Ноя. 29, 2024
The
growing
demand
for
efficient
energy
storage
systems,
particularly
in
portable
electronics
and
electric
vehicles,
has
led
to
increased
interest
supercapacitors,
which
offer
high
power
density,
rapid
charge/discharge
rates,
long
cycle
life.
However,
improving
their
density
without
compromising
performance
remains
a
challenge.
In
this
study,
we
developed
novel
3D-printed
reduced
graphene
oxide
(rGO)
electrodes
coated
with
polyaniline
(PANI)
enhance
electrochemical
properties.
rGO
were
fabricated
using
direct
ink
writing
(DIW),
allowed
precise
control
over
thickness,
ranging
from
4
24
layers.
A
unique
formulation
was
optimized
the
printing
process,
consisting
of
rGO,
cellulose
acetate
(CA)
as
binder,
acetone
solvent.
PANI
coating
applied
via
chemical
oxidative
polymerization
(COP)
up
five
deposition
cycles.
Electrochemical
testing,
including
cyclic
voltammetry
(CV),
galvanostatic
(GCD),
impedance
spectroscopy
(EIS),
revealed
that
12-layer
three
cycles
achieved
highest
areal
capacitance
84.32
mF/cm
Язык: Английский