The
fabrication
of
bimetallic
sulfide
integrated
anodes
possessing
stable
configurations
is
deemed
a
potent
tactic
to
surmount
the
drawbacks
inadequate
charge
transfer
and
pronounced
volume
expansion
afflicting
single
metal
sulfides
within
lithium-ion
batteries
(LIBs).
Herein,
hierarchical
Ni3S2/CoS2
nanosheet
arrays
on
Ni
foam
(NF)
are
procured
via
two-step
hydrothermal
growth
protocol.
design
an
anode
with
array
architecture
synergistic
interaction
ions
can
furnish
copious
electroactive
sites,
expedite
ion/electron
translocation,
accelerate
dynamic
reaction,
consequently
avert
structural
impairment.
Ni3S2/CoS2/NF
manifests
specific
capacity
2307
mAh
g–1
at
0.64
A
sustains
80.4%
its
after
1000
cycles
1.28
g–1.
This
discovery
functions
as
momentous
benchmark
for
exploitation
other
LIBs.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(5), P. 2680 - 2684
Published: Jan. 1, 2024
Three-dimensional
porous
NiCoP
foam
supported
on
Ni
is
a
superb
bifunctional
electrocatalyst
for
overall
seawater
splitting,
attaining
large
current
density
of
1000
mA
cm
−2
at
low
cell
voltage
1.97
V
with
robust
stability
over
300
hours.
Small,
Journal Year:
2024,
Volume and Issue:
20(28)
Published: Feb. 16, 2024
Abstract
Renewable
electricity‐driven
seawater
splitting
presents
a
green,
effective,
and
promising
strategy
for
building
hydrogen
(H
2
)‐based
energy
systems
(e.g.,
storing
wind
power
as
H
),
especially
in
many
coastal
cities.
The
abundance
of
Cl
−
seawater,
however,
will
cause
severe
corrosion
anode
catalyst
during
the
electrolysis,
thus
affect
long‐term
stability
catalyst.
Herein,
oxidation
performances
NiFe
layered
double
hydroxides
(LDH),
classic
oxygen
(O
)
evolution
material,
can
be
boosted
by
employing
tungstate
(WO
4
2–
intercalated
guest.
Notably,
insertion
WO
2−
to
LDH
layers
upgrades
reaction
kinetics
selectivity,
attaining
higher
current
densities
with
≈100%
O
generation
efficiency
alkaline
seawater.
Moreover,
after
350
h
test
at
1000
mA
cm
−2
,
only
trace
active
chlorine
detected
electrolyte.
Additionally,
follows
lattice
mechanism
on
.
Small,
Journal Year:
2023,
Volume and Issue:
20(13)
Published: Nov. 14, 2023
The
pursuit
of
stable
and
efficient
electrocatalysts
toward
seawater
oxidation
is
great
interest,
yet
it
poses
considerable
challenges.
Herein,
the
utilization
Cr-doped
CoFe-layered
double
hydroxide
nanosheet
array
reported
on
nickel-foam
(Cr-CoFe-LDH/NF)
as
an
electrocatalyst
for
oxygen
evolution
reaction
in
alkaline
seawater.
Cr-CoFe-LDH/NF
catalyst
can
achieve
current
densities
500
1000
mA
cm
Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
38(5), P. 4504 - 4515
Published: Feb. 7, 2024
Discovering
cost-effective,
durable,
and
economical
electrocatalysts
for
the
lattice
oxygen-
mediated
mechanism
(LOM)-based
oxygen
evolution
reaction
(OER)
under
acidic
conditions
is
essential
advancing
commercialization
of
electrochemical
water-splitting
devices.
In
this
study,
we
effectively
constructed
a
distinctive
petal-like
nanoflake
(NFls)
structure
by
introducing
ruthenium
(Ru)
into
NiM
(M
=
Fe,
Co)
metal–organic
framework
(MOF)
on
nickel
foam
(NFo)
substrate
through
straightforward
in
situ
conversion
process
layered
double
hydroxides
(LDHs).
Utilizing
unique
properties
material,
Ru-doped
NiFe-BDC/NFo
exhibited
an
impressively
low
overpotential
∼247
mV
at
current
density
10
mA
cm–2
when
operating
environment
OER.
Most
notably,
our
champion
catalysts
displayed
exceptional
long-term
stability
during
continuous
operation
20
h
0.5
M
H2SO4,
positioning
them
as
some
top
conditions.
The
catalytic
performance
Co)-BDC/NFo
can
be
ascribed
to
introduction
Ru
LDH
MOF.
This
transformation
significantly
enhances
kinetics
facilitates
charge
transfer,
ultimately
resulting
attainment
optimal
activity
research
introduces
novel
category
OER
conditions,
which
has
been
relatively
underexplored.
Small,
Journal Year:
2024,
Volume and Issue:
20(31)
Published: March 3, 2024
Abstract
Seawater
electrolysis
holds
tremendous
promise
for
the
generation
of
green
hydrogen
(H
2
).
However,
system
seawater‐to‐H
faces
significant
hurdles,
primarily
due
to
corrosive
effects
chlorine
compounds,
which
can
cause
severe
anodic
deterioration.
Here,
a
nickel
phosphide
nanosheet
array
with
amorphous
NiMoO
4
layer
on
Ni
foam
(Ni
P@NiMoO
/NF)
is
reported
as
highly
efficient
and
stable
electrocatalyst
oxygen
evolution
reaction
(OER)
in
alkaline
seawater.
Such
/NF
requires
overpotentials
just
343
370
mV
achieve
industrial‐level
current
densities
500
1000
mA
cm
−2
,
respectively,
surpassing
that
P/NF
(470
555
mV).
Furthermore,
it
maintains
consistent
over
h,
improvement
compared
(120
h)
Ni(OH)
(65
h).
Electrochemical
situ
Raman
spectroscopy,
stability
testing,
chloride
extraction
analysis
reveal
formed
MoO
2−
/PO
3−
from
during
OER
test
electrode
surface,
thus
effectively
repelling
Cl
−
hindering
formation
harmful
ClO
.
