Applied Organometallic Chemistry,
Journal Year:
2024,
Volume and Issue:
38(6)
Published: April 22, 2024
Manganese
dioxide
(MnO
2
)
often
suffers
from
a
slow
electron
transport,
and
so
improving
the
charge
transport
capability
of
MnO
is
imminent.
In
here,
crossed
nanosheets
grown
on
carbon
cloth
(CC)
are
fabricated
firstly
subsequently
coated
with
layer
polypyrrole
(PPy)
to
prepare
CC/MnO
/PPy
(CC/MP)
electrode.
At
1
A
g
−1
,
prepared
electrode
able
deliver
specific
capacitance
328
F
.
The
flexible
asymmetric
supercapacitor
consists
CC/MP
CC/activated
(CC/AC)
separately
as
positive
negative
electrodes
PVA‐H
SO
4
gel
electrolyte.
assembled
device
exhibits
123.96
at
10
mV
s
reaches
voltage
window
1.6
V,
has
retention
96.46%
after
8000
cycles,
produces
an
energy
density
25.67
W
h
kg
power
401.79
well
8.78
3902.22
two
devices
in
series
can
illuminate
1.8
V
red
light‐emitting
diode
(LED)
light.
These
excellent
electrochemical
properties
ascribed
unique
heterostructure
composite.
outcomes
indicate
that
corresponding
have
huge
potential
applications
next‐generation
high‐performance
devices.
Inorganic Chemistry Frontiers,
Journal Year:
2023,
Volume and Issue:
10(15), P. 4358 - 4392
Published: Jan. 1, 2023
In
this
study,
the
preparation
methods
of
MXenes
and
layered
dihydroxides
(LDHs)
are
reviewed.
addition,
electrochemical
performances
for
supercapacitors
MXene/LDHs
composites
summarized
in
detail.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 15, 2024
Abstract
Battery‐type
electrode
materials
with
high
capacity,
wide
potential
windows,
and
good
cyclic
stability
are
crucial
to
breaking
through
energy
storage
limitations
achieving
density.
Herein,
a
novel
2D‐on‐2D
Al‐doped
NiCo
layered
double
hydroxide
(NiCoAl
x
LDH)
nanosheet
arrays
high‐mass‐loading
grown
on
carbon
cloth
(CC)
substrate
via
two‐step
hydro/solvothermal
deposition
strategy,
the
effect
of
Al
doping
is
employed
modify
behavior,
hierarchical
morphology,
phase
stability,
multi‐metallic
synergistic
effect.
The
optimized
NiCoAl
0.1
LDH
exhibits
capacities
5.43,
6.52,
7.25
C
cm
−2
(9.87,
10.88,
11.15
F
)
under
0–0.55,
0–0.60,
0–0.65
V
respectively,
illustrating
clearly
importance
window.
differentiated
strategy
reduces
leaching
level
3+
cations
in
alkaline
solutions,
ensuring
excellent
performance
(108%
capacity
retention
after
40
000
cycles).
as‐assembled
LDH//activated
(ACC)
hybrid
supercapacitor
delivers
3.11
at
0–2.0
V,
large
density
0.84
mWh
power
10.00
mW
,
≈135%
150
cycles.
