Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 30, 2025
The
development
of
non-noble
metal-based
hydrogen
evolving
reaction
(HER)
electrocatalysts
operating
under
high
current
density
plays
a
critical
role
in
the
large-scale
application
anion
exchange
membrane
water
electrolysis
(AEM-WE).
Herein,
porous
and
hybrid
MoS2/Ni3S2
is
synthesized
on
nickel
foam
(NF)
via
one-step
hydrothermal
method
studied
its
reconstruction
process
during
alkaline
HER
conditions.
Experimental
results
indicated
that
MoS2
underwent
an
oxidative
dissolution
followed
by
dynamic
equilibrium
between
redeposition
amorphous
MoOx
HER.
Meanwhile,
S-vacancy-rich
Ni3S2
(A-Ni3S2)
exposed
acts
as
real
active
site
for
obtained
MoOx/A-Ni3S2
catalyst
exhibited
catalytic
performance
three-electrode
systems
single-cell
AEM-WE.
Finally,
long-term
durability
test
AEM
electrolyzer,
dry
cathode
applied
to
suppress
Mo
species
leaching
from
electrode.
Remarkably,
device
assembled
NiFe
anode
demonstrated
stability
2500
h
at
2
A
cm-2
40
°C
with
small
aging
rate
30
µV
h-1.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(41)
Published: July 1, 2023
By
providing
dual
active
sites
to
synergistically
accelerate
H2
O
dissociation
and
H+
reduction,
ordered
intermetallic
alloys
usually
show
extraordinary
performance
for
pH-universal
hydrogen
evolution
reaction
(HER).
Herein,
activated
N-doped
mesoporous
carbon
spheres
supported
Pt3
Fe
(Pt3
Fe/NMCS-A),
as
a
highly-efficient
electrocatalyst
HER,
are
reported.
The
Fe/NMCS-A
exhibits
low
overpotentials
(η10
)
of
13,
29,
48
mV
deliver
10
mA
cm-2
in
0.5
m
SO4
,
1.0
KOH,
phosphate
buffered
solution
(PBS),
respectively,
well
robust
stability
maintain
the
overall
catalytic
performances.
Theoretical
studies
reveal
that
strong
Pt
5d-Fe
3d
orbital
electronic
interactions
negatively
shift
d-band
center
(εd
5d
orbital,
resulting
reduced
H*
adsorption
energy
enhanced
acidic
HER
activity.
With
acting
co-adsorption
*OH
intermediates,
barrier
is
required
dissociate
afford
which
greatly
promotes
formation
alkaline
neutral
conditions.
synthetic
strategy
further
extended
synthesis
Co
Ni
with
excellent
activity
electrolytes,
demonstrating
great
potential
these
Pt-based
practical
applications.
Energy & Fuels,
Journal Year:
2023,
Volume and Issue:
37(4), P. 2608 - 2630
Published: Feb. 2, 2023
Hydrogen
is
believed
to
be
one
of
the
essential
clean
secondary
energy
sources
in
structure
revolution
both
industry
and
daily
life.
Driven
by
renewable
electricity
such
as
solar
wind
power,
water
electrolysis
for
hydrogen
production
deemed
main
processes
green
future
academia
industry.
Transition
metal
chalcogenides
(TMCs)
are
promising
candidates
replace
noble
metals
earth-abundant
electrocatalysts
splitting.
However,
it
remains
challenging
further
improve
electrocatalytic
activity
long-term
stability
TMCs,
especially
a
practical
electrolyzer.
This
Review
summarizes
recent
advances
strategies
optimizing
activities
TMCs
toward
splitting
well
latest
investigations
on
surface
reconstructions
during
electrolysis.
The
performances
cells
particularly
discussed.
Finally,
concluding
remark
perspective
provided,
we
hope
inspire
works
this
area,
narrowing
gap
between
material
design
application.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(16)
Published: Feb. 14, 2024
Abstract
The
alkaline
water
electrolyzer
(AWE)
is
the
earliest
and
most
mature
water‐splitting
technology.
However,
conventional
Raney
Ni
electrocatalysts
dominantly
used
in
AWEs
are
struggling
to
meet
current
demands
for
higher
energy
efficiency
cost‐effectiveness
green
hydrogen
production.
Although
many
promising
electrocatalytic
materials
have
been
developed
using
facile
preparation
methods
laboratory,
they
not
received
much
attention
commercial
AWE
applications.
It
due
academic
negligence
on
specific
operational
conditions,
critical
performance
metrics,
material
costs
associated
with
industrial
AWEs,
as
well
disregarding
impact
of
large‐scale
electrode
manufacturing
processes
catalytic
performance.
Therefore,
a
timely
review
bridge
laboratory
focus
requirements
essential
guide
future
development
electrocatalysts.
Here,
starting
from
differences
operating
testing
conditions
between
systems,
gaps
equipment,
evaluation
methods,
principles
electrodes
outlined.
To
narrow
these
gaps,
some
efforts
advancing
industrially
relevant
highlighted
personal
perspectives
opportunities,
research
focus,
challenges
this
field
provided.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(28)
Published: March 11, 2024
Abstract
Electrochemical
water
splitting
to
produce
green
hydrogen
offers
a
promising
technology
for
renewable
energy
conversion
and
storage,
as
well
realizing
carbon
neutrality.
The
efficiency,
stability,
cost
of
electrocatalysts
toward
evolution
reaction
(HER)
electrocatalytic
overall
(EOWS)
at
large
current
densities
are
essential
practical
application.
In
this
review,
the
key
factors
that
determine
catalytic
performance
summarized
from
angel
thermodynamic
kinetic
correlation.
corresponding
design
strategies
presented.
electronic
structure
density
active
sites
affect
adsorption/desorption
intermediates
considered
aspects,
while
charge
transfer
mass
transport
capabilities
closely
associated
with
electrode
resistance
intermediate
diffusion
assigned
effects.
Recent
development
bifunctional
integrated
EOWS
is
also
discussed
in
detail.
Finally,
perspective
direction
on
under
proposed.
This
comprehensive
overview
will
offer
profound
insights
guidance
continued
advancement
field.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(28)
Published: April 26, 2024
Metal
defect
engineering
is
a
highly
effective
strategy
for
addressing
the
prevalent
high
overpotential
issues
associated
with
transition
metal
oxides
functioning
as
dual-function
commercial
oxygen
reduction
reaction/oxygen
evolution
reaction
catalysts
increasing
their
activity
and
stability.
However,
formation
energy
of
defects
poses
challenge
to
development
strategies
precisely
control
selectivity
during
formation.
Here,
density
functional
theory
calculations
are
used
demonstrate
that
altering
pathway
releases
atoms
chlorides,
which
effectively
reduces
defects.
The
on
monometallic
oxide
surface
(Mn,
Fe,
Co,
Ni)
selectively
produced
using
chlorine
plasma.
characterization
reveal
catalytic
enhanced
owing
electronic
delocalization
induced
by
defects,
theoretical
overpotential.
Notably,
ab
initio
molecular
dynamics
calculations,
ex
situ
XPS,
in
ATR-SEIRAS
suggest
improve
adsorption
reactive
species
active
sites
enhance
efficiency
product
desorption,
thereby
boosting
performance.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 25, 2024
Abstract
Catalysts
play
a
crucial
role
in
water
electrolysis
by
reducing
the
energy
barriers
for
hydrogen
and
oxygen
evolution
reactions
(HER
OER).
Research
aims
to
enhance
intrinsic
activities
of
potential
catalysts
through
material
selection,
microstructure
design,
various
engineering
techniques.
However,
consumption
has
often
been
overlooked
due
intricate
interplay
among
catalyst
microstructure,
dimensionality,
catalyst–electrolyte–gas
dynamics,
surface
chemistry,
electron
transport
within
electrodes,
transfer
electrode
components.
Efficient
development
high‐current‐density
applications
is
essential
meet
increasing
demand
green
hydrogen.
This
involves
transforming
with
high
into
electrodes
capable
sustaining
current
densities.
review
focuses
on
improvement
strategies
mass
exchange,
charge
transfer,
resistance
decrease
consumption.
It
bridge
gap
between
laboratory‐developed,
highly
efficient
industrial
regarding
structural
catalyst‐electrode
interplay,
outlining
roadmap
hierarchically
structured
electrode‐based
minimizing
loss
electrocatalysts
splitting.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(15)
Published: March 10, 2024
Abstract
Electrochemical
water
splitting
plays
a
vital
role
in
facilitating
the
transition
towards
sustainable
energy
future
by
enabling
renewable
hydrogen
(H
2
)
production,
storage,
and
emission‐free
transportation.
Developing
earth‐abundant
electrocatalysts
with
outstanding
overall
water‐splitting
performance,
excellent
catalytic
activity,
robust
long‐term
stability
is
highly
important
practical
application
of
electrolysis.
Self‐supported
have
emerged
as
most
appealing
candidate
for
H
production
due
to
their
increased
active
site
loading,
rapid
mass
charge
transfer,
strong
interaction
underneath
conducting
support.
Additionally,
these
also
provide
enhanced
reaction
kinetics
stability.
Here,
comprehensive
review
recent
progress
developing
self‐supported
Fe‐based
selective
oxidation
reactions
presented
examples
oxyhydroxides,
layered
double
hydroxides,
oxides,
chalcogenides,
phosphides,
nitrides,
other
Fe‐containing
electrocatalysts.
A
historical
development
synthesis
provided,
an
emphasis
on
various
deposition
methods
choice
substrates
considering
large‐scale
commercial
applications.
An
overview
mechanistic
understanding
approaches
are
presented.
Finally,
challenges
opportunities
associated
applications
alternative
discussed.
