Journal of Applied Polymer Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 23, 2024
Abstract
Poly(3,4‐ethylene
dioxythiophene)
(PEDOT)
is
a
conducting
polymer
that
can
be
used
in
flexible
bioelectronic
devices.
The
electrode/electrolyte
interface
interaction
one
of
the
most
important
factors
improving
electrochemical
performance
energy
storage
materials,
and
these
polymers
are
often
combined
with
negatively
charged
poly(styrene
sulfonate)
(PSS)
chain
to
improve
their
alkali
metal
cations
such
as
sodium
potassium.
In
this
work,
we
performed
one‐step
synthesis
PEDOT
on
carbon
fabric
using
molecule
2‐acrylamido‐2‐methyl‐1‐propane
sulfonic
acid
(AMPS)
create
highly
effective
materials
for
supercapacitor
electrodes.
electrode
had
significant
increase
capacitance
value,
measured
16.4
times
higher
than
electrode.
2‐electrode
system
exhibited
specific
value
495.2
F
g
−1
at
scan
rate
5
mV
s
.
It
high
operating
voltage
2.3
V
aqueous
electrolyte
system.
showed
density
109.0
Wh
kg
when
6.1
kW
power
85.2
30.6
density.
Recent
findings
reveal
retention
device
increased
significantly
113.9%
after
25,000
cycles
3.0
M
NaCl
electrolyte,
demonstrating
its
outstanding
long‐term
durability.
Thus,
creation
synthesized
advance
study
polymers,
which
have
limited
lifetime
real‐world
electronic
applications.
Inorganics,
Год журнала:
2024,
Номер
12(8), С. 205 - 205
Опубликована: Июль 29, 2024
The
overconsumption
of
fossil
fuels
is
leading
to
worsening
environmental
damage,
making
the
generation
clean,
renewable
energy
an
absolute
necessity.
Two
common
components
electrochemical
storage
(EES)
devices
are
batteries
and
supercapacitors
(SCs),
which
among
most
promising
answers
worldwide
issue.
In
this
study,
we
introduce
exceptionally
efficient
electrode
material
for
supercapacitors,
composed
a
hydrothermally
synthesized
composite
known
as
MnNiS@MXene.
We
utilized
XRD,
SEM,
BET
analyze
material’s
crystallinity,
morphology,
surface
area.
Qs
MnNiS@MXene
was
remarkable
1189.98
C/g
or
1983.3
F/g
at
2
A/g
under
three
assemblies
in
1
M
KOH
electrolyte
solution.
Activated
carbon
used
negative
electrode,
while
served
positive
assembled
supercapattery
device
(MnNiS@MXene//AC).
This
showed
exceptional
performance,
specific
capacity
307.18
C/g,
power
density
1142.61
W/kg,
34.79
Wh/kg.
Additionally,
cyclic
durability
evaluated
through
7000
cycles
charging/discharging,
demonstrating
that
it
maintained
approximately
87.57%
its
original
capacity.
successful
integration
these
materials
can
lead
electrodes
with
superior
capabilities
photoelectrochemical
performance.
aforementioned
findings
suggest
exhibits
potential
forthcoming
systems.
ECS Journal of Solid State Science and Technology,
Год журнала:
2024,
Номер
13(10), С. 101003 - 101003
Опубликована: Окт. 1, 2024
Improved
pseudo-capacitance
performance
can
be
obtained
by
phosphates
and
transition-metal
oxides
achieving
oxidation
states
that
boost
redox
(reduction-oxidation)
processes.
In
this
work,
the
nickel
magnesium
phosphate
(NiMgPO
4
)
is
synthesized
using
hydrothermal
method,
Additional,
carbon
nanotubes
(CNTs)
are
blended
with
NiMgPO
.
To
build
supercapattery
device
@CNT//AC)
evaluate
its
electrochemical
characteristics,
we
used
@CNT
as
anode
&
activated
cathode.
We
also
X-ray
diffraction,
scanning
electron
micrscopy,
Brunauer–Emmett–Teller,
photoelectron
spectroscopy
techniques
to
analyze
crystal
structure,
surface
area,
elemental
composition.
The
nanocomposite
demonstrated
a
high
specific
capacity
of
1243
C
g
−1
or
2071.66
F
in
three-electrode
system,
which
was
much
more
than
separate
reference
materials.
shows
251
,
energy
density
44.5
Wh
kg
power
1030
W
observed.
hybrid
electrode
exhibited
retention
85%
after
5000
cycles
columbic
efficiency
91%
during
stability
measurement.
These
findings
emphasize
NiMgPO4@CNT’s
potential
an
composite
material
holds
promise
for
high-performance
building.
Energy storage materials,
Год журнала:
2024,
Номер
72, С. 103758 - 103758
Опубликована: Сен. 1, 2024
Water-in-salt
electrolytes
(WiSEs)
have
emerged
as
the
primary
preference
in
domain
of
aqueous-based
supercapacitors,
thanks
to
their
wide
electrochemical
stability
window
(ESW
>
1.23
V).
Here,
we
chemically
synthesized
a
unique
lettuce
coral-like
structure
tosylate
doped-poly(3,4-ethylenedioxythiophene)
(PEDOT-tos)
and
tested
it
for
supercapacitor
application
17
molal
(m)
NaClO4
WiSE,
achieving
an
ESW
1.9
V.
The
energy
power
densities
(Ed
Pd)
our
PEDOT-tos
are
high
14
Wh/kg
7210
W/kg,
respectively,
with
over
80%
capacitance
retention
after
10,000
continuous
Galvanostatic
charge-discharge
cycles.
WiSE
increases
Ed
Pd
PEDOT
by
several
folds
compared
traditional
H2SO4
electrolyte.
This
work
encourages
exploration
suitable
combination
PEDOT-based
composite
material
high-performance
supercapacitors.
Journal of Electroanalytical Chemistry,
Год журнала:
2024,
Номер
968, С. 118440 - 118440
Опубликована: Июнь 13, 2024
Cobalt
ions
were
inserted
into
poly(3,4-ethylenedioxythiophene)
by
cyclic
voltammetry
in
a
0.1
M
CoNO32
aqueous
solution
(PEDOT(Co)).
After
activation
of
the
cobalt,
PEDOT(aCo)
system
was
investigated
voltammetry,
digital
video
electrochemistry,
spectroelectrogravimetry,
and
coupled
impedance
techniques
(ac-electrogravimetry)
to
elucidate
key
role
cobalt
altered
electrochemistry
PEDOT.
The
incorporation
Co2+
involves
slow
transfer
cations
for
charge
compensation
during
Co2+⇄Co3+
conversion
inside
This
fact
explains
enhanced
storage
showed
compared
with
pristine
PEDOT
at
similar
potentials.
Finally,
stability
measuring
same
time
current,
mass
motional
resistance
variation
100
cycles
offering
high
all
times.
