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.
Langmuir,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 16, 2024
Ternary
cobalt
nickel
sulfides
are
considered
promising
electrode
materials
due
to
their
unique
physical
properties.
However,
its
capacitive
performance
is
still
limited
by
the
insufficient
material
utilization
efficiency.
Here,
we
design
and
fabricate
CoNi2S4
with
nanorods
hairy-petal-like
nanosheets
on
foam
(NF)
as
an
excellent
self-standing
for
a
hybrid
supercapacitor
(HSC).
The
was
synthesized
NF
substrate
organic
framework
(Co-MOF)
conversion
introducing
sulfur
ion
exchange.
vacancies
controlled
regulating
reduction
time,
then
electrochemical
analysis
comparison
were
performed.
results
demonstrate
that
synergistic
effect
of
MOF-derived
skeleton
can
significantly
improve
activity
sulfide.
exhibits
superior
high
specific
capacitance
5.24
F/cm2
at
current
density
3
mA/cm2.
Furthermore,
assembled
CoNi2S4-60//AC
HSC
displays
energy
59.41
Wh/kg
power
999.98
W/kg.
Even
after
10,000
continuous
charge–discharge
cycles,
initial
retained
89.24%.
These
feasibility
practicality
CoNi2S4-60
material,
showcasing
potential
real-world
applications.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(24), P. 3586 - 3586
Published: Dec. 21, 2024
The
issue
of
hazardous
smoke
and
toxic
gases
released
from
epoxy
resins
(EP),
which
often
causes
casualties
in
real
fires,
has
limited
its
application.
Therefore,
we
have
developed
a
novel
flame
retardant
based
on
bimetallic-doped
phytate-melamine
(BPM)
structure
with
Zn2+
Fe2+
ions
incorporated
into
the
polymer
matrix
using
straightforward
solution-based
synthetic
method.
combustion
performance
composite
was
evaluated
cone
calorimeter
test,
showed
that
peak
heat
release,
total
production
were
reduced
by
50%,
31.7%,
29.2%,
respectively,
compared
to
those
EP.
Additionally,
fire
growth
index
noticeably
60%
owing
synergistic
catalytic
effect
bimetallic
ions,
high
nitrogen
phosphorus
content
additives.
Overall,
this
study
provides
new
insights
application
doping
for
composites.
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.
