Amorphous
electrocatalysts
exhibit
potentials
as
precursors
for
triggering
the
in
situ
reconstruction
to
generate
real
catalytic
active
species
toward
electrochemical
processes.
In
this
work,
a
new
kind
of
amorphous
Ni-Co-B
alloy
pre-catalysts
hydrogen
evolution
reaction
(HER)
is
reported,
which
obtained
via
facile
electroless
plating
strategy
on
nickel
foam
(NF).
Interestingly,
X-ray
photoelectron
spectroscopy,
absorption
spectroscopy
and
morphological
characterizations
identify
process
during
HER
accompanied
by
preferential
leaching
surface
B
formation
CoO
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 24, 2025
The
design
of
high-performance
OER
catalysts
is
crucial
for
efficient
electrochemical
water
splitting
(EWS).
Herein,
a
NiCo2S4@Ce-NiFe
LDH/CeO2
heterostructure
nanoarray
electrocatalyst
with
abundant
oxygen
defect
sites
reported.
introduction
Ce
species
activates
the
lattice
in
oxyhydroxides,
inducing
transformation
catalytic
mechanism
toward
oxidation
(LOM)
pathway,
bypassing
thermodynamic
limitation
adsorbate
evolution
(AEM),
and
strengthening
intrinsic
activity
material.
Moreover,
reversible
transitions
between
different
states
high
storage
capacity
CeO2
regulate
adsorption
behavior
reaction
intermediates,
allowing
it
to
be
easier
material
enrich
oxygen-containing
thereby
improving
kinetics.
Accordingly,
exhibits
remarkable
performance
(η50
=
226
mV,
η100
244
mV)
brilliant
stability.
Additionally,
presence
protective
layer
inhibits
impact
Cl-
other
pollutants
seawater,
which
enables
perform
satisfactorily
seawater
electrolysis,
as
well.
This
study
offers
fresh
perspective
on
defect-rich
catalysts.
Amorphous
electrocatalysts
exhibit
potentials
as
precursors
for
triggering
the
in
situ
reconstruction
to
generate
real
catalytic
active
species
toward
electrochemical
processes.
In
this
work,
a
new
kind
of
amorphous
Ni-Co-B
alloy
pre-catalysts
hydrogen
evolution
reaction
(HER)
is
reported,
which
obtained
via
facile
electroless
plating
strategy
on
nickel
foam
(NF).
Interestingly,
X-ray
photoelectron
spectroscopy,
absorption
spectroscopy
and
morphological
characterizations
identify
process
during
HER
accompanied
by
preferential
leaching
surface
B
formation
CoO
