Abstract
2D
MXene
nanoflakes
usually
undergo
serious
restacking,
that
easily
aggravates
during
the
traditional
vacuum‐assisted
filtration
process;
and
thus,
hinders
electrochemical
performance
of
corresponding
film
electrodes.
Herein,
3D
porous
compact
1D/2D
Fe
2
O
3
/MXene
aerogel
electrode
with
an
enhanced
is
fabricated
by
freeze‐drying
assisted
mechanical
pressing.
An
introduction
1D
α‐Fe
nanorods
can
not
only
alleviate
restacking
but
also
provide
additional
pseudocapacitance
for
composite
system.
Thus,
resulting
shows
specific
capacitance
182
F
g
−1
(691
mF
cm
−2
)
at
a
current
density
1
A
in
m
H
SO
4
electrolyte
as
well
81.74%
retention
after
10
000
charge–discharge
cycles.
Besides,
addition
has
significant
contribution
volumetric
(150
−3
),
which
2.68
times
pure
(56
).
Moreover,
all‐solid‐state
symmetric
supercapacitor
(SSSC)
delivers
superior
areal
energy
3.61
µWh
power
119.04
µW
.
This
rapid‐forming
porous,
binder‐free,
freestanding
provides
progressive
strategy
fabrication
MXene‐based
supercapacitors.
Nanoscale Advances,
Год журнала:
2020,
Номер
2(12), С. 5516 - 5528
Опубликована: Янв. 1, 2020
Illustration
of
transition
metal-based
electrode
materials
(oxides,
sulfides,
and
phosphides)
for
supercapacitors.
Recent
researches,
current
challenges,
next
generation
design
will
be
discussed.
ACS Applied Energy Materials,
Год журнала:
2022,
Номер
5(6), С. 6481 - 6498
Опубликована: Май 25, 2022
Supercapacitors
(SCs)
are
highly
promising
electrochemical
energy
conversion
and
storage
devices.
SCs
display
an
outstanding
power
performance,
excellent
reversibility,
long-term
stability,
simple
operation,
high
feasibility
for
integration
into
electronic
devices,
including
consumer
electronics,
memory
backup
systems,
industrial
management
systems.
The
electrode
materials
determine
the
cell
capacitance,
operating
voltage,
density,
time
constant
of
SCs.
Transition
metal-based
(TMEMs)
among
most
electrodes
SCs,
due
to
their
specific
quick
charging/discharging
rates,
in
addition
ease
preparation
a
yield
from
low-cost
earth-abundant
resources.
Binary
transition
metal
sulfides
(BTMSs)
possess
various
advantages
relative
other
TMEMs,
higher
capacity,
electrical
conductivity,
redox
properties,
better
quicker
electron/ion
diffusion,
superior
reversibility
with
long
cycle
life.
Herein,
inventory
recent
progress
rational
design
BTMS
deliberated,
spaning
methods
operative
conditions,
mechanism.
To
help
assist
further
development
efficient
durable
current
underlying
challenges
possible
solutions
identified
addressed,
emphasis
on
device
performance
vs
type
merits.
