Engineering oxygen vacancies into ZnCo hydrotalcite for boosting performances for flexible supercapacitor
Chao-Wei Luo,
No information about this author
Kai Zhang,
No information about this author
Hong‐Yan Zeng
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et al.
Journal of Power Sources,
Journal Year:
2025,
Volume and Issue:
633, P. 236403 - 236403
Published: Feb. 6, 2025
Language: Английский
Defect engineering induced nanostructure changes of NiMo-layered double hydroxides/MOF heterostructure on battery type charge storage
Journal of Power Sources,
Journal Year:
2025,
Volume and Issue:
639, P. 236685 - 236685
Published: March 4, 2025
Language: Английский
Interface Storage Mechanism in Aqueous Ammonium‐Ion Supercapacitors with Keggin‐Type Polyoxometalates‐Modified Ag‐BTC
Yu Liang,
No information about this author
Hanyu Zhang,
No information about this author
Mengtian Huo
No information about this author
et al.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 23, 2024
Abstract
Ammonium‐ion
supercapacitors
(AISCs)
offer
considerable
potential
for
future
development
owing
to
their
low
cost,
high
safety,
environmental
sustainability,
and
efficient
electrochemical
energy
storage
capabilities.
The
rapid
charge‐transfer
process
at
the
AISC
can
endow
them
with
capacitive
cycling
stabilities.
However,
prolonged
intercalation/deintercalation
of
NH
4
+
in
layered
framework
materials
often
results
cleavage
active
sites
deconstruction
framework,
which
makes
it
difficult
achieve
long‐term
stable
while
maintaining
capacitance
electrode
materials.
Herein,
highly
redox‐active
polyoxometalates
(POMs)
modified
[Ag
3
(µ‐Hbtc)(µ‐H
2
btc)]
n
(Ag‐BTC)
is
used
as
POMs
effectively
promote
pseudocapacitance
through
a
similar
interface
mechanism.
At
current
density
1
A
g
−1
,
{PMo
12
}@Ag‐BTC
exhibited
specific
619.4
mAh
retained
100%
its
after
20,000
charge–discharge
cycles.
An
asymmetrical
battery
{PW
positive
negative
materials,
respectively,
achieved
an
125.3
Wh
kg
.
interface‐capacitance
enables
full
utilization
metal‐O
x
(x
=
b,
c,
t)
within
POMs,
significantly
enhancing
charge
storage.
This
study
emphasizes
POM‐based
Language: Английский
Electrochemical evaluation of NiFe-LDH/PANI based composite electrode synthesized via microwave assisted method for supercapacitor application
Inorganic Chemistry Communications,
Journal Year:
2025,
Volume and Issue:
179, P. 114802 - 114802
Published: June 3, 2025
Language: Английский
Application of Defect Engineering via ALD in Supercapacitors
Tiange Gao,
No information about this author
Xiaoyang Xiao,
No information about this author
Zhenliang Dong
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et al.
Batteries,
Journal Year:
2024,
Volume and Issue:
10(12), P. 438 - 438
Published: Dec. 10, 2024
Supercapacitors
are
a
kind
of
energy
storage
device
that
lie
between
traditional
capacitors
and
batteries,
characterized
by
high
power
density,
long
cycle
life,
rapid
charging
discharging
capabilities.
The
mechanism
supercapacitors
mainly
includes
electrical
double-layer
capacitance
pseudocapacitance.
In
addition
to
constructing
multi-level
pore
structures
increase
the
specific
surface
area
electrode
materials,
defect
engineering
is
essential
for
enhancing
electrochemical
active
sites
achieving
additional
extrinsic
Therefore,
developing
simple
efficient
method
essential.
Atomic
layer
deposition
(ALD)
technology
enables
precise
control
over
thin
film
thickness
at
atomic
level
through
layer-by-layer
deposition.
This
capability
allows
intentional
introduction
defects,
such
as
vacancies,
heteroatom
doping,
or
misalignment,
within
material.
ALD
process
can
regulate
defects
in
materials
without
altering
overall
structure,
thereby
optimizing
both
physical
properties
materials.
Its
self-limiting
reaction
also
ensures
doping
introduced
uniformly
across
material
surface.
uniform
distribution
particularly
profitable
electrodes
supercapacitor
applications,
it
promotes
consistent
performance
entire
electrode.
review
systematically
summarizes
latest
advancements
via
supercapacitors,
including
enhancement
conductivity
ALD,
improving
density
device.
Furthermore,
we
discuss
underlying
mechanisms,
advantages,
future
directions
this
field.
Language: Английский