International Journal of Energy Research,
Journal Year:
2025,
Volume and Issue:
2025(1)
Published: Jan. 1, 2025
Specific
capacitance
plays
a
critical
role
when
assessing
the
performance
of
supercapacitor.
Hence,
its
prediction
is
crucial
for
evaluating
electrochemical
electric
double‐layer
capacitors
(EDLCs).
Machine
learning
(ML)
offers
prospect
predicting
with
nominal
investment
in
synthesis
and
testing
electrode
materials.
Herein,
six
ML
models:
random
forest
(RF),
artificial
neural
network
(ANN),
tree
(RT),
committee
(RC),
subspace
(RS),
support
vector
machine
(SVM)
regressor
are
used
to
analyze
effect
four
hetero
atom
doping
(nitrogen,
boron,
sulfur,
phosphorous)
on
EDLCs.
Amongst
all,
RF,
ANN,
RS
showed
highest
correlation
values
0.9996,
0.9993
0.9867,
respectively,
lowest
root
mean
square
0.93,
1.19,
2.31,
through
selection
12
key
input
descriptors
basis
physical,
structural,
test,
operational,
parameters.
Furthermore,
attribute
prioritization
was
introduced
identify
rank
important
features
within
dataset.
It
highlights
that
specific
surface
area,
total
pore
volume,
nitrogen
most
significant
among
selected
features.
With
fewer
iterations,
developed
models’
estimation
accuracy
surpassed
other
state‐of‐art
models
literature.
In
perspective,
this
study
considers
an
extensive
dataset
extracted
from
more
than
250
research
articles
heteroatom‐doped
carbon
electrodes.
also
provides
insights
into
significance
modeling
technology.
Metal
sulfides,
characterized
by
high
crystalline
stability
and
narrowed
band
gap,
are
recognized
as
effective
electrode
materials
for
energy
storage
in
alkaline
environments.
This
study
enhances
the
surface
activity
Co9S8/Ni3S2
hollow
nanorod
arrays
incorporating
phosphorus
(P)
doping.
In
situ
Raman
spectroscopy
confirms
that
P
doping
facilitates
rapid
reconstruction
media,
resulting
substantial
amounts
of
oxyhydroxides
significantly
enhance
density
supercapacitors.
The
optimized
P–Co9S8/Ni3S2
(1
h)
demonstrates
a
4.56-fold
increase
performance
over
original
Co9S8/Ni3S2,
achieving
capacitance
20.5
F·cm–2
at
3
mA·cm–2
2
M
KOH.
hybrid
supercapacitor
device
assembled
with
activated
carbon
achieves
an
1.73
mWh
cm–2
power
4.95
mW
cm–2,
showcasing
cycling
life
84.6%
capacity
retention
after
10,000
cycles.
work
effectively
reconstructs
oxyhydroxide
species
on
electrodes
environments
through
engineering,
providing
valuable
guidance
design
reconstructions
metal
sulfide
using
atom
engineering.
Electronics,
Journal Year:
2025,
Volume and Issue:
14(1), P. 144 - 144
Published: Jan. 1, 2025
Autonomous
electronic
systems
are
becoming
increasingly
important
in
people’s
lives,
as
a
result
of
advances
efficient
energy
storage
systems,
devices
that
can
be
permanently
implanted
humans,
and
the
trend
towards
compact
function
an
extension
human
body.
In
addition,
strategies
continue
to
found
for
integration
harvesting
constant
manner.
Covering
numerous
made
biomedical
quite
overwhelming.
This
work
presents
review
latest
developed
produce
from
body
activity,
collectors
devices,
create
ultra-low-power
wearable
devices.
The
focuses
on
potential
sufficiency
required
power
or
worn,
while
also
providing
information
about
patient’s
condition.
A
comparison
between
energies
produced
by
different
instruments
improvements
development
low-consumption
is
presented,
with
focus
type
medical
new
approach
established
classify
locate
most
recent
autonomous
biomedicine
based
their
complexity/function.
Materials,
Journal Year:
2025,
Volume and Issue:
18(9), P. 2101 - 2101
Published: May 3, 2025
Modulating
the
oxidation
states
of
transition
metal
species
is
a
practical
approach
to
enhance
redox
activity
and
increase
number
active
sites
in
electrode
materials.
Herein,
we
describe
simple
one-step
hydrothermal
prepare
CoxSy
with
two
different
phases,
cobalt
pyrite
(CoS2)
pentlandite
(Co9S8),
explain
influence
material
microstructure
properties
on
electrochemical
performance.
The
as-prepared
CoS2
Co9S8
were
investigated
as
symmetric
supercapacitor
(SC)
devices
for
potential
energy
storage
applications.
exhibited
highest
specific
gravimetric
capacitance
14.12
Fg−1
at
0.2
mAcm−2
retention
91.3%
after
10,000
cycles,
indicating
robust
cycling
stability.
In
addition,
SC
device
showed
(E)
power
(P)
density
9.14
Whkg−1
0.23
kWkg−1.
These
results
highlight
tailoring
phase
syntheses
structure
toward
high-performance
conversion.
