Rational
design
of
electrode
material
structure
is
a
key
factor
to
improve
the
high
energy
density/power
density
and
increase
lifetime
supercapacitors.
Herein,
CuWO4@NiCoWO4
porous
nanorod
array
composites
supported
by
copper
foam
(CF)
substrate
are
designed
synthesized
simple
solution
immersion
process
combined
with
thermal
dehydration
hydrothermal
strategies.
The
electrochemical
properties
active
components
maximized
due
unique
structural
synergistic
effects
different
components.
As
result,
CF
loaded
binder-free
achieves
capacitance
(4.048
F
cm-2
at
5
mA
cm-2),
enhanced
rate
performance
(88.3%
retention
30
cm
-2)
long
durability
(83.5%
after
20,000
cycles).
In
addition,
CuWO4@NiCoWO4//AC
asymmetric
supercapacitors
(ASC)
assembled
provided
maximum
0.35
mW
h
(20.19
Wh
kg-1)
excellent
cycling
stability
(96.79%
10,000
Of
practical
importance,
this
work
broadens
our
horizon
for
fabricating
new
metal
tungstate
next-generation
storage
technologies.
Crystals,
Journal Year:
2023,
Volume and Issue:
13(11), P. 1593 - 1593
Published: Nov. 17, 2023
Supercapacitors
play
an
important
role
in
power
systems
since
they
are
a
key
part
of
electrochemical
energy
storage
devices.
To
assemble
high-performance
supercapacitors,
it
is
crucial
to
discover
and
innovate
high-capacitive
electrode
materials.
Recently,
metal–organic
frameworks
(MOFs)
their
derivatives
have
received
wide
concerns
as
materials
for
not
only
because
high
pore
volume
large
surface
area
ions
electrons
insertion
transportation,
but
also
due
the
intrinsic
metal
active
sites
that
possibly
offer
extra
faradaic
pseudocapacitance.
Additionally,
abundant
species
MOFs
with
various
morphologies
feature
advantages
enriching
structural
diversity
electrodes.
In
this
paper,
we
first
report
latest
research
progress
demonstrate
feasibility
pure
directly
constructing
supercapacitor
Furthermore,
different
MOF
derivatives,
including
porous
carbons,
transition
oxides,
hydroxides
composites
summarized,
performances
corresponding
mechanisms
presented
detail.
Finally,
perspectives
MOF-based
applied
supercapacitors
discussed,
aiming
provide
guideline
further
based
on
these
promising
