Materials,
Journal Year:
2024,
Volume and Issue:
18(1), P. 80 - 80
Published: Dec. 27, 2024
Due
to
its
low
cost,
natural
abundance,
non-toxicity,
and
high
theoretical
capacitance,
cobalt
oxide
(CoO)
stands
as
a
promising
candidate
electrode
material
for
supercapacitors.
In
this
study,
binder-less
molybdenum
doped
CoO
(Mo@CoO)
integrated
electrodes
were
one-step
fabricated
using
simple
electric
discharge
corrosion
(EDC)
method.
This
EDC
method
enables
the
direct
synthesis
of
Mo@CoO
active
materials
with
oxygen
vacancy
on
substrates,
without
any
pre-made
templates,
conductive
additives,
or
chemicals.
Most
importantly,
precise
control
over
processing
parameter
pulse
width,
which
facilitates
tailoring
surface
morphologies
as-prepared
materials.
It
was
found
that
based
symmetric
supercapacitor
prepared
by
width
24
μs
(Mo@CoO-SCs24)
achieved
maximum
areal
capacitance
36.0
mF
cm−2
(0.15
mA
cm−2),
is
1.83
1.97
times
higher
than
Mo@CoO-SCs12
Mo@CoO-SCs36.
Moreover,
Mo@CoO-SCs24
devices
could
be
worked
at
10
V
s−1,
demonstrates
their
fast
charge/discharge
characteristic.
These
results
demonstrated
significant
potential
strategy
efficiency
fabricating
various
metal
applications,
like
supercapacitors,
batteries
sensors.
The
present
study
sought
to
develop
supercapacitor
electrode
in
PVA-H2SO4
gel
electrolytes
with
enhanced
efficacy.
synthesized
composites
were
thoroughly
characterized
utilizing
different
techniques
such
as
XRD,
FTIR,
BET,
SEM-EDS,
and
XPS
for
physicochemical
characterization
CV,
GCD,
EIS
electrochemical
testing.
pristine
Mxene
(Ti3C2Tx)
is
synthesised
by
Floride
acid
free
the
in-situ
polymerization
technique
employed
synthesis
Ti3C2/PANI
nanocomposites
electrode.
incorporation
of
PANI
into
Ti3C2Tx
augments
interlayer
spacing
MXene
nanosheets,
boosts
flexibility
hybrid
materials,
improves
performance
Ti3C2Tx.
effective
interaction
between
nanosheets
facilitates
paths
charge
carriers,
hence
ensuring
high
conductivity
enhancing
surface
redox
processes.
utilization
Ti3C2Tx/PANI
electrodes
demonstrates
a
specific
capacitance
657
F/g
at
current
density
1.0
A/g.
possesses
an
energy
82.13
Wh
kg−1
power
0.103
kg−1.
Furthermore,
has
excellent
cycling
stability
retention
rate
98%
after
1000
cycles.
Financial Engineering,
Journal Year:
2025,
Volume and Issue:
3, P. 117 - 126
Published: Jan. 16, 2025
This
research
explores
the
challenges
associated
with
achieving
a
true
full
charge
in
Electric
Double-Layer
Capacitors
(EDLCs)
during
relaxation
charging.
The
conventional
method,
while
reaching
charge,
is
considered
pseudo
leading
to
inefficient
energy
utilization.
proposed
solution
involves
parallel
monitor
simple
electronic
circuit
that
can
be
electronically
disconnected
relaxed
innovation
prevents
wasteful
flow
of
charging
current
through
monitor,
facilitating
efficient
Experimental
results
demonstrate
effectiveness
contrast
methods,
showing
promise
for
practical
applications
cordless
equipment
and
similar
scenarios.
Future
work
aims
enhance
accuracy
adaptability
variable
currents.
article
delves
into
enhancing
performance
(EDLC),
particularly
series-connected
configurations.
Comparisons
lead-acid
batteries
highlight
EDLC
advantages
power
electronics,
showcasing
long
cycle
life
high
voltage
operation.
Charging
inefficiencies
arising
from
series
connections
prompt
introduction
minimalist
circuit.
circuit,
utilizing
only
one
MOSFET
two
resistors,
ensures
uniform
distribution
Additionally,
it
incorporates
an
disconnection
feature
charging,
improving
efficiency
by
over
25%.
validation
demonstrates
utility
monitor.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 2, 2025
Two-dimensional
layered
transition
metal
dichalcogenides
(2D
TMDs)
have
emerged
as
promising
candidates
for
supercapacitor
(SCs)
owing
to
their
tunable
electronic
properties,
structures,
and
effective
ion
intercalation
capabilities.
Despite
these
advantages,
challenges
such
low
electrical
conductivity,
the
interlayer
restacking,
oxidation
structural
collapse
hinder
practical
implementation.
This
review
provides
a
comprehensive
overview
of
recent
advances
in
development
2D
TMDs
SCs.
We
begin
by
outlining
charge
storage
mechanisms
design
principles
SCs,
followed
an
in-depth
discussion
synthesis
methods
associated
fabricating
TMD
architectures.
The
subsequent
sections
explore
crystal
structures
reaction
mechanisms,
illustrating
electrochemical
potential
Furthermore,
we
highlight
material
modification
strategies,
including
nanostructuring,
defect
engineering,
phase
control,
surface/interface
modulation,
which
been
proposed
overcome
existing
challenges.
Finally,
address
critical
issues
emerging
opportunities
inspire
SC
technologies.
