Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 19, 2024
Supercapacitors
have
gained
interest
as
innovative
sustainable
energy
storage
systems
owing
to
their
high
specific
capacitance
and
superior
cycle
stabilities.
However,
large-scale
applications
are
limited
by
poor
electron
conductivity
low
density.
Herein,
we
prepare
a
NiSe2/MoSe2
composite
on
nickel
foam
via
two-step
hydrothermal
route,
which
delivers
capacity
of
736
C
g–1
at
1
A
g–1.
Meanwhile,
it
achieves
retention
rate
92.87%
5
after
cycling
10,000
times.
Furthermore,
the
assembled
asymmetric
device
offers
an
density
59.25
Wh
kg–1
power
2700
W
kg–1.
Also,
devices
maintain
excellent
mechanical
stability
durability
multiple
bending.
Sustainable Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
8(18), P. 4355 - 4364
Published: Jan. 1, 2024
A
Co-MOF
assembled
hybrid
supercapacitor
exhibits
outstanding
specific
energy
and
power
(60.07
W
h
kg
−1
850
)
with
80.01%
diffusive
76.72%
capacitive
contribution
at
3
100
mV
s
,
respectively.
Batteries,
Journal Year:
2024,
Volume and Issue:
10(7), P. 230 - 230
Published: June 26, 2024
Ni3S2
is
a
kind
of
transition
metal
sulfide
(TMD)
with
excellent
electrical
conductivity
and
electrochemical
activity.
To
further
enhance
the
specific
capacity
Ni3S2-based
supercapacitors,
we
synthesize
several
nanosheet-decorated
Ni3S2@NiMo-LDH
nanostructures
by
combination
hydrothermal
electrodeposition
processes.
The
mesoporous
structure
provides
large
number
electroactive
sites,
which
shortens
charge
transfer
distance
increases
surface
area
electrode
materials.
assembled
asymmetric
supercapacitor
shows
an
energy
density
62.8
W
h
kg−1
at
2701.6
long-term
cycling
stability.
CrystEngComm,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
We
design
NiMoS@NiCo-LDH
core–shell
structures
through
facile
synthesis
routes.
The
as-fabricated
products
deliver
a
specific
capacity
of
1456
C
g
−1
at
1
A
.
They
still
work
stably
extreme
temperatures
ranging
from
25
to
−20
°C.