Advanced Functional Materials,
Год журнала:
2024,
Номер
34(37)
Опубликована: Апрель 21, 2024
Abstract
Electrocatalytic
hydrogen
evolution
reaction
(HER)
via
alkaline
water
splitting
holds
great
promise
for
industrial
clean
production
but
is
frustrated
by
limited
catalytic
activity
and
inferior
stability
under
high
current
density.
Elaborate
manipulating
of
heterostructure
on
robust
electrodes
essential
challenging
accelerating
HER
kinetics
with
durability.
Herein,
a
nickel
mesh
electrode,
offering
mechanical
stability,
directly
engineered
layers
multiple
heterostructures
(r‐Mn–Ni/CoP)
facile
one‐pot
electrodeposition
followed
surface
reconstruction
strategy.
The
abundant
composed
crystalline
CoP,
NiP,
amorphous
region,
additional
Mn
doping
considerably
manipulate
the
electronic
structure
optimized
charge
transfer;
while
in
situ
surface‐reconstructed
hydrophilic
nanoflakes
enable
rapid
wetting
active
sites
to
electrolyte.
Consequently,
r‐Mn–Ni/CoP
requires
only
134
mV
overpotential
at
density
100
mA
cm
−2
,
superior
monophasic
undoped
samples,
majority
reported
catalysts.
Remarkably,
an
electrolyzer
cathode
demonstrates
extraordinary
voltage
1.734
V
300
stable
operation
800
h.
finding
provides
feasible
strategy
fabrication
nonprecious‐metal‐based
electrocatalysts
toward
electrolysis.
Abstract
Featured
with
the
attractive
properties
such
as
large
surface
area,
unique
atomic
layer
thickness,
excellent
electronic
conductivity,
and
superior
catalytic
activity,
layered
metal
chalcogenides
(LMCs)
have
received
considerable
research
attention
in
electrocatalytic
applications.
In
this
review,
approaches
developed
to
synthesize
LMCs‐based
electrocatalysts
are
summarized.
Recent
progress
composites
for
electrochemical
energy
conversion
applications
including
oxygen
reduction
reaction,
carbon
dioxide
evolution
hydrogen
overall
water
splitting,
nitrogen
reaction
is
reviewed,
potential
opportunities
practical
obstacles
development
of
high‐performing
active
substances
also
discussed.
This
review
may
provide
an
inspiring
guidance
developing
high‐performance
LMCs
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(29), С. 18313 - 18323
Опубликована: Янв. 1, 2024
The
HER,
OER,
and
water
electrolysis
properties
in
an
alkaline
medium
the
corresponding
mechanism
of
nanoclimbing-wall-like
NiO/NiCoP
are
revealed
by
electrochemical
tests,
situ
Raman
spectroscopy,
DFT
calculation.
