Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 20, 2025
Abstract
Designing
cost‐effective
electrocatalysts
with
fast
reaction
kinetics
and
high
stability
is
an
outstanding
challenge
in
green
hydrogen
generation
through
overall
water
splitting
(OWS).
Layered
double
hydroxide
(LDH)
heterostructure
materials
are
promising
candidates
to
catalyze
both
oxygen
evolution
(OER)
(HER),
the
two
OWS
half‐cell
reactions.
This
work
develops
a
facile
hydrothermal
route
synthesiz
hierarchical
MoS
2
@NiFeCo‐LDH
@NiFeCo‐Mo(doped)‐LDH
electrocatalysts,
which
exhibit
extremely
good
OER
HER
performance
as
witnessed
by
their
low
IR‐corrected
overpotentials
of
156
61
mV
at
current
density
10
mA
cm
−2
under
light
assistance.
The
@NiFeCo‐Mo(doped)‐LDH‐MoS
cell
achieves
voltage
1.46V
during
light‐assisted
electrolysis.
Both
exhibited
exceptional
industrially
relevant
conditions,
maintaining
1
A
minimal
alterations
potential
performance.
experimental
computational
results
demonstrate
that
doping
LDH
matrix
high‐valence
Mo
atoms
quantum
dots
improves
electrocatalytic
activity
1)
enhancing
electron
transfer,
2)
making
electrocatalyst
metallic,
3)
increasing
number
active
sites,
4)
lowering
thermodynamic
overpotential,
5)
changing
mechanism.
Overall,
this
synthesis
method
design
highly
stable
electrocatalysts.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 21, 2025
Abstract
Layered
double
hydroxides
(LDHs)
exhibit
great
potential
in
electrocatalytic
water
splitting
due
to
the
unique
2D
feature
and
an
adjustable
structure
composed
of
different
metal
centers.
In
addition,
LDHs
have
advantage
being
inherently
inexpensive
compared
other
catalysts
good
stability
splitting.
Up
now,
numerous
methods
been
put
forward
improve
activity
splitting,
a
comprehensive
introduction
comb
fabrication
modification
strategies
is
helpful
for
followers
get
clear
vein
carry
out
efficient
manipulation
development
high
promising
catalysts.
this
review,
basic
principles
electrolysis,
evaluation
indexes
are
introduced
first,
then
properties
commonly
utilized
introduced.
After
that,
oxygen
evolution
reaction
(OER),
hydrogen
(HER),
overall
(OWS)
performance
LDHs‐based
analyze
merits
shortcomings
compared.
Based
on
this,
advanced
improving
give
brief
prospect
materials
electrocatalysis.
