Recent Advances and Challenges in Hybrid Supercapacitors Based on Metal Oxides and Carbons
Lili Gao,
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Fuyuan Liu,
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Jiaxing Qi
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et al.
Inorganics,
Journal Year:
2025,
Volume and Issue:
13(2), P. 49 - 49
Published: Feb. 8, 2025
Hybrid
supercapacitors
(HSCs)
are
a
novel
type
of
supercapacitor
composed
battery-type
electrodes
and
capacitor-type
electrodes,
which
have
directly
transformed
the
global
energy
landscape.
On
one
hand,
they
can
replace
clean
sources
that
heavily
dependent
on
climatic
conditions
in
specific
regions,
thereby
enhancing
effective
utilization
intermittent
sources.
other
with
their
high
density
akin
to
secondary
batteries
long
lifespan
power
characteristic
supercapacitors,
perfectly
bridge
gap
between
supercapacitors.
This
article
reviews
fundamental
storage
principles
HSCs
highlights
latest
optimization
strategies
for
based
transition
metal
oxides
(TMOs)
carbon
over
past
two
years.
These
include
heteroatom
doping,
heterostructured
materials,
nanocomposites,
metal–organic
frameworks
(MOF).
Finally,
prospects
future
research
directions
discussed.
Language: Английский
Zeolitic Imidazolate Framework-67-Derived NiCoMn-Layered Double Hydroxides Nanosheets Dispersedly Grown on the Conductive Networks of Single-Walled Carbon Nanotubes for High-Performance Hybrid Supercapacitors
Nanomaterials,
Journal Year:
2025,
Volume and Issue:
15(7), P. 481 - 481
Published: March 23, 2025
A
supercapacitor’s
energy
storage
capability
is
greatly
dependent
on
electrode
materials.
Layered
double
hydroxides
(LDHs)
were
extensively
studied
as
battery-type
electrodes
because
of
their
2D
structure
and
quick
intercalation/deintercalation
electrolyte
ions.
However,
the
for
pristine
LDHs
limited
by
large
aggregation
tendency
poor
electrical
conductivity.
Herein,
a
novel
NiCoMn-LDH/SWCNTs
(single-walled
carbon
nanotubes)
composite
material,
with
ultrathin
NiCoMn-LDH
nanosheets
dispersedly
grown
among
highly
conductive
networks
SWCNTs,
was
prepared
via
facile
zeolitic
imidazolate
framework-67
(ZIF-67)-derived
in
situ
etching
deposition
procedure.
The
demonstrates
specific
capacitance
1704.3
F
g−1
at
1
g−1,
which
ascribed
to
its
exposure
more
active
sites
than
NiCoMn-LDH.
Moreover,
assembled
NiCoMn-LDH/SWCNTs//BGA
(boron-doped
graphene
aerogel)
hybrid
supercapacitor
exhibits
superior
167.9
1.0
an
excellent
density
45.7
Wh
kg−1
power
700
W
kg−1,
outstanding
cyclic
stability
82.3%
incipient
maintained
when
subjected
5000
charge
discharge
cycles
current
10
suggesting
significant
potential
material
applicable
supercapacitors.
Language: Английский
Facile Synthesis of Polypyrrole/MnO2/Carbon Cloth Composites for Supercapacitor Electrodes
Yan Chen,
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Hanyue He,
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Min Liu
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et al.
Nanomaterials,
Journal Year:
2025,
Volume and Issue:
15(9), P. 641 - 641
Published: April 23, 2025
In
the
development
of
flexible
smart
electronics,
fabricating
electrodes
with
optimized
architectures
to
achieve
superior
electrochemical
performance
remains
a
significant
challenge.
This
study
presents
two-step
synthesis
and
characterization
polypyrrole
(PPy)-MnO2/carbon
cloth
(CC)
nanocomposite.
The
MnO2/CC
substrate
was
first
prepared
via
hydrothermal
method,
followed
by
uniform
PPy
coating
through
vapor-phase
polymerization
in
presence
an
oxidizing
agent.
Electrochemical
measurements
revealed
substantial
enhancement
performance,
specific
capacitance
increasing
from
123.1
mF/cm2
for
composite
324.5
PPy/MnO2/CC
at
current
density
2.5
mA/cm2.
remarkable
improvement
can
be
attributed
synergistic
effects
between
conductive
polymer
formation
additional
ion
transport
channels
facilitated
coating.
work
provides
valuable
insights
designing
high-performance
electrode
materials
advances
composite-based
energy
storage
devices.
Language: Английский
Current Advancement in Electrochemical Potential of Polypyrrole‐Based Composite Materials for Supercapacitor Application: A Mini Review
Bhakti G. Thali,
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Dhiraj S. Agrahari,
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Rajesh M. Kamble
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et al.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(18)
Published: May 1, 2025
Abstract
Polypyrrole
(PPy)
has
been
the
subject
of
extensive
research
recently
as
a
supercapacitive
material
due
to
its
high
theoretical
capacitance,
low
cost,
facile
synthesis,
and
abundance
in
nature.
However,
cyclic
stability
PPy
alone
an
electrode
is
drawback
for
energy
storage
application.
For
supercapacitors
(SCs),
composite
materials
based
on
have
developed
improve
their
electrochemical
performance.
This
review
summarizes
some
recent
developments
field
hybrid
SCs.
Additionally,
certain
recommendations
are
made
about
advancement
large‒scale
synthesis
techniques
further
enhancing
PPy‒based
practical
utility
devices.
Language: Английский