Abstract
Aqueous
zinc‐ion
hybrid
capacitors
(ZIHCs),
as
ideal
candidates
for
high
energy‐power
supply
systems,
are
restricted
by
unsatisfied
energy
density
and
poor
cycling
durability
further
applications.
The
construction
of
a
surface‐functionalized
carbon
cathode
is
an
effective
strategy
improving
the
performance
ZIHCs.
Herein,
high‐performance
ZIHC
achieved
using
oxygen‐rich
hierarchically
porous
rods
(MDPC‐
X
)
prepared
pyrolysis
metal‐organic
framework
(MOF)
assisted
KOH
activation.
MDPC‐
samples
displayed
electric
double‐layer
capacitance
(EDLC)
pseudocapacitance
owing
to
their
surfaces,
abundant
electroactive
sites,
short
ions/electron
transfer
lengths.
surface
oxygen
functional
groups
reversible
chemical
adsorption/desorption
Zn
2+
identified
ex
situ
X‐ray
photoelectron
spectroscopy
(XPS)
scanning
electron
microscopy
(SEM).
Consequently,
as‐assembled
exhibited
capacity
323.4
F
g
−1
(161.7
mA
h
at
0.5
A
retention
147
(73.5
ultrahigh
current
50
,
corresponding
power
densities
145.5
W
kg
45
kW
respectively.
Furthermore,
excellent
life
with
96.5%
also
maintained
after
10
000
cycles
demonstrating
its
promising
potential
Batteries,
Год журнала:
2024,
Номер
10(5), С. 168 - 168
Опубликована: Май 20, 2024
Modern
research
has
made
the
search
for
high-performance,
sustainable,
and
efficient
energy
storage
technologies
a
main
focus,
especially
in
light
of
growing
environmental
energy-demanding
issues.
This
review
paper
focuses
on
pivotal
role
biomass-derived
carbon
(BDC)
materials
development
high-performance
metal-ion
hybrid
supercapacitors
(MIHSCs),
specifically
targeting
sodium
(Na)-,
potassium
(K)-,
aluminium
(Al)-,
zinc
(Zn)-ion-based
systems.
Due
to
their
widespread
availability,
renewable
nature,
exceptional
physicochemical
properties,
BDC
are
ideal
supercapacitor
electrodes,
which
perfectly
balance
sustainability
technological
advancement.
delves
into
synthesis,
functionalization,
structural
engineering
advanced
biomass-based
materials,
highlighting
strategies
enhance
electrochemical
performance.
It
elaborates
unique
characteristics
these
carbons,
such
as
high
specific
surface
area,
tuneable
porosity,
heteroatom
doping,
achieving
superior
capacitance,
density,
cycling
stability
Na-,
K-,
Al-,
Zn-ion
supercapacitors.
Furthermore,
compatibility
BDCs
with
electrolytes
facilitating
ion
transport
charge
mechanisms
critically
analysed.
Novelty
arises
from
comprehensive
comparison
across
systems,
unveiling
synergistic
effects
BDCs’
attributes
performance
each
type.
also
casts
current
challenges,
scalability,
cost-effectiveness,
consistency,
offering
insightful
perspectives
future
research.
underscores
transformative
potential
MIHSCs
paves
way
next-generation
that
both
high-performing
ecologically
friendly.
calls
continued
innovation
interdisciplinary
collaboration
explore
sustainable
thereby
contributing
advancing
green
technologies.
Advanced Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 19, 2024
Hybrid
ion
capacitors
(HICs)
have
aroused
extreme
interest
due
to
their
combined
characteristics
of
energy
and
power
densities.
The
performance
HICs
lies
hidden
in
the
electrode
materials
used
for
construction
battery
supercapacitor
components.
hunt
is
always
on
locate
best
material
terms
cost-effectiveness
overall
optimized
characteristics.
Functionalized
biomass-derived
porous
carbons
(FBPCs)
possess
exquisite
features
including
easy
synthesis,
wide
availability,
high
surface
area,
large
pore
volume,
tunable
size,
functional
groups,
a
range
morphologies,
thermal
chemical
stability.
FBPCs
found
immense
use
as
cathode,
anode
dual
recent
literature.
current
review
designed
around
two
main
concepts
which
include
synthesis
properties
followed
by
utilization
various
types
HICs.
Among
monovalent
HICs,
lithium,
sodium,
potassium,
are
given
comprehensive
attention,
whereas
zinc
only
multivalent
HIC
that
focused
upon
corresponding
literature
availability.
Special
attention
also
provided
critical
factors
govern
concludes
providing
feasible
directions
future
research
aspects
