Micromachines,
Journal Year:
2024,
Volume and Issue:
15(7), P. 849 - 849
Published: June 29, 2024
Transition
metal
sulfides
are
widely
used
in
supercapacitor
electrode
materials
and
exhibit
excellent
performance
because
of
their
rich
variety,
low
price,
high
theoretical
specific
capacity.
At
present,
the
main
methods
to
prepare
transition
include
hydrothermal
method
electrochemical
method.
In
order
further
improve
performance,
two
aspects
can
be
addressed.
Firstly,
by
controllable
synthesis
nanomaterials,
porous
structures
large
surface
areas
achieved,
thereby
improving
ion
transport
efficiency.
Secondly,
combining
with
other
energy
storage
materials,
such
as
carbon
oxides,
synergy
between
different
fully
utilized.
However,
future
research
still
needs
address
some
challenges.
guide
in-depth
research,
it
is
necessary
combine
current
research-derived
knowledge
propose
a
direction
for
development
sulfide
materials.
Journal of Energy Storage,
Journal Year:
2023,
Volume and Issue:
77, P. 109723 - 109723
Published: Dec. 27, 2023
Metal
oxide-biochar
composites
have
become
a
promising
class
of
materials
for
supercapacitor
applications.
The
incorporation
metal
oxides
into
the
biochar
matrix
offers
several
advantages,
including
improved
capacitance,
stability,
ion
diffusion,
and
conductivity.
synergistic
interactions
between
result
in
enhanced
capacitance
stability
composites.
Biochar's
porous
nature
makes
transport
easier,
which
improves
energy
storage
capabilities
speeds
up
charge-discharge
rates.
Additionally,
addition
composites'
conductivity,
facilitating
effective
electron
transport.
However,
research
gaps
still
remain
despite
these
developments,
requiring
optimization
composition
structural
features
as
well
their
synthesis
approaches.
Furthermore,
order
to
precisely
control
characteristics
composites,
greater
comprehension
mechanism
underlying
creation
is
necessary.
This
agenda
calls
new
with
electrochemical
performance
using
diverse
oxide
precursors
made
from
various
agricultural
wastes.
article
summarizes
recent
developments
waste
upcoming
supercapacitors.
We
believe
findings,
terms
fundamentals,
development,
challenges,
future
prospects,
this
review
would
be
beneficial
readers
will
facilitate
concerned
era.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(44)
Published: May 14, 2024
Abstract
The
porous
structure
is
critical
for
carbonaceous
electrode‐based
zinc‐ion
capacitors
(ZICs)
to
achieve
excellent
electrochemical
performance,
but
the
corresponding
structure‐electrochemical
performance
relationship
yet
be
fully
understand.
Herein,
three
types
of
N‐doped
carbons
with
different
structures
are
developed
investigate
between
pore
size
distribution
and
devices.
optimized
carbon
(LVCR)
exhibits
large
surface
area,
plentiful
oxygen
functional
groups,
hierarchical
that
facilitates
electron
transfer
ion
diffusion.
Consequently,
LVCR‐based
ZIC
a
remarkable
peak
power
density
31.4
kW
kg
−1
an
impressive
specific
energy
126.6
Wh
.
Moreover,
it
demonstrates
exceptional
longevity,
retaining
capacitance
97.7%
even
after
undergoing
50
000
cycles.
Systematic
characterization
macroporous
mesoporous
determine
stages
Zn
2+
storage
kinetics.
LVCR
attributed
fast
transport
channels
provided
by
facilitated
reversible
chemisorption
desorption.
This
work
not
only
deepens
understanding
charge
mechanism,
also
provides
guidelines
rationally
designing
materials
toward
high‐performance
ZICs
in
view
relationship.
