Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 11, 2025
Abstract
Iridium‐based
electrocatalysts
are
commonly
regarded
as
the
sole
stable
operating
acidic
oxygen
evolution
reaction
(OER)
catalysts
in
proton‐exchange
membrane
water
electrolysis
(PEMWE),
but
linear
scaling
relationship
(LSR)
of
multiple
intermediates
binding
inhibits
enhancement
its
activity.
Herein,
compressive
strain
and
vacancy
effect
exists
iridium
dioxide
(IrO
2
)‐based
catalyst
by
a
doping
engineering
strategy
for
efficient
OER
In
situ
synchrotron
characterizations
elucidate
that
can
enhance
Ir─O
covalency
reduce
Ir─Ir
bond
distance,
(O
v
)
an
electronic
regulator
causes
rapid
adsorption
molecules
on
Ir
adjacent
Ov
(Ir─O
pair
site
to
be
coupled
directly
into
*
O─O
intermediates.
Importantly,
hence,
volcano‐shape
curves
established
between
strain/oxygen
current
using
probe
reaction.
Theoretical
calculation
reveals
Ni
dopant
modulate
5
d
‐
O
p
‐band
centers
increasing
overlap
orbits
trigger
continuous
metal
site‐oxygen
synergistic
mechanism
(MS‐O
V
SM)
pathway,
successfully
breaking
LSR
during
OER.
Therefore,
resultant
(PEMWE)
device
fabricated
T‐0.24Ni/IrO
delivers
density
500
mA
cm
−2
operates
stably
h.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(30)
Published: May 27, 2024
Abstract
Electrochemical
water
splitting
is
a
promising
technique
for
the
production
of
high‐purity
hydrogen.
Substituting
slow
anodic
oxygen
evolution
reaction
with
an
oxidation
that
thermodynamically
more
favorable
enables
energy‐efficient
Moreover,
this
approach
facilitates
degradation
environmental
pollutants
and
synthesis
value‐added
chemicals
through
rational
selection
small
molecules
as
substrates.
Strategies
small‐molecule
electrocatalyst
design
are
critical
to
electrocatalytic
performance,
focus
on
achieving
high
current
density,
selectivity,
Faradaic
efficiency,
operational
durability.
This
perspective
discusses
key
factors
required
further
advancement,
including
technoeconomic
analysis,
new
reactor
system
design,
meeting
requirements
industrial
applications,
bridging
gap
between
fundamental
research
practical
product
detection
separation.
aims
advance
development
hybrid
electrolysis
applications.
Accounts of Materials Research,
Journal Year:
2024,
Volume and Issue:
5(6), P. 712 - 725
Published: May 15, 2024
ConspectusRare
earth
interface
structure
materials
(RE-ISM)
play
a
crucial
role
in
the
field
of
inorganic
synthesis
and
provide
an
effective
means
achieving
refined
utilization
rare
elements.
By
capitalizing
on
unique
properties
earth,
these
are
designed
for
functional
applications
at
interfaces.
Given
escalating
energy
environmental
concerns,
there
is
urgent
need
to
expedite
development
efficient
pathways
clean
storage
conversion.
Electrocatalytic
conversion
energetic
small
molecule
way
with
as
carrier.
However,
catalysts
often
constrained
by
limitations
catalyst
system
lack
clarity
regarding
reaction
processes.
It
provides
new
opportunities
design
catalytic
developing
RE-ISM
analyzing
dynamic
evolution
process
across
time
space
dimensions.In
this
Account,
we
mainly
focus
research
progress
synthesis,
application,
mechanism
order
effectively
high-performance
materials.
classified
into
three
categories
based
size
substrate,
following
guidance
provided
phase
diagram.
includes
atomic
interfaces,
cluster
heterstructures.
strategically
designing
diverse
structures,
it
feasible
synthesize
material
systems
that
tailored
toward
multitude
applications.
The
synthesized
employed
electrocatalytic
molecules,
offering
novel
prospects
electrode
redox
both
negative
positive
grades
involves
structural
molecules
through
electron
transfer.
facilitating
such
reactions.
Achieving
construction
necessitates
in-depth
analysis
mechanisms
employing
situ
spectroscopy
technology.
transformation
morphology,
structure,
was
analyzed
from
perspective
resolution,
spatial
spectral
resolution.
We
elucidate
correlation
between
interaction
intrinsic
cognitive
foundation
analysis.
This
theoretical
support
RE-ISM.
In
summary,
expect
will
ideas
insights
further
promote
rapid
high
performance
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(35)
Published: June 5, 2024
The
utilization
of
rare
earth
elements
to
regulate
the
interaction
between
catalysts
and
oxygen-containing
species
holds
promising
prospects
in
field
oxygen
electrocatalysis.
Through
structural
engineering
adsorption
regulation,
it
is
possible
achieve
high-performance
catalytic
sites
with
a
broken
activity-stability
tradeoff.
Herein,
this
work
fabricates
hierarchical
CeO
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 8, 2025
Abstract
Oxygen
vacancy
(V
O
)
engineering
is
widely
regarded
as
a
key
strategy
for
enhancing
CoMo‐based
catalysts
oxygen
evolution
reaction
(OER)
while
understanding
their
formation
mechanisms
and
role
in
boosting
OER
activity
remains
significant
challenge.
Herein,
CoMoO
x
system
doped
developed
with
different
3
d
‐orbital
atoms
M
(V,
Ni,
Zn,
Mn)
to
investigate
the
construction
stabilization
of
V
its
crucial
performance.
In
situ
ex
measurements
along
theoretical
calculations
demonstrate
that
doping
adjusts
bandgap
between
CoMo‐
‐p
orbitals,
leading
transfer
electrons
from
O‐
p
orbitals
M‐
thereby
promoting
.
The
leads
an
upshifted
‐band
center,
optimizing
desorption
intermediates
on
‐CoMoVO
lowering
energy
barrier
rate‐determining
step
(RDS),
catalyst's
activity.
Additionally,
promotes
electron
Co
atoms,
stabilizing
ultimately
improving
stability.
resulting
catalyst
delivered
attractive
(overpotential
248
mV
at
10
mA
cm
−2
durability
over
600
h.
This
study
offers
rational
method
designing
efficient
electrocatalysts.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
review
systematically
provides
various
insights
into
the
pH
effect
on
hydrogen
electrocatalysis,
and
thus
providing
a
reference
for
future
development
of
electrocatalysis
based
these
insights.
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(34), P. 16037 - 16046
Published: Aug. 9, 2024
The
core
principles
of
multicomponent
interface
and
electronic
structure
engineering
are
essential
in
designing
high-performance
catalysts
for
the
oxygen
evolution
reaction
(OER).
However,
combining
these
aspects
within
a
catalyst
is
significant
challenge.
In
this
investigation,
novel
approach
involving
development
hybrid
Ir-doped
CoMO4–Co(OH)2
(M
=
W
Mo)
hollow
nanoboxes
was
introduced,
enabling
remarkably
efficient
water
oxidation
electrocatalysis.
Constructed
from
ultrathin
nanosheet-assembled
nanoboxes,
structures
boast
wealth
active
centers
intermediate
species,
which
turn
enhance
both
charge
transfer
mass
transport
capabilities.
Moreover,
compelling
synergistic
effects
arising
interaction
between
CoMO4
Co(OH)2
significantly
bolster
OER
electrocatalysis
by
facilitating
electron
transfer.
introduction
Ir
atoms
serves
to
strategically
adjust
structure,
fine-tune
its
state,
operate
as
electrocatalysis,
thus
diminishing
overpotential.
This
configuration
results
Ir-CoWO4–Co(OH)2
Ir-CoMoO4–Co(OH)2
exhibiting
impressively
low
overpotentials
252
261
mV,
respectively,
10
mA
cm–2.
Utilized
conjunction
with
Pt/C
two-electrode
system
overall
splitting,
mere
1.53
V
cell
potential
needed
achieve
desired
cm–2
current
density.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 8, 2025
Iridium
single
atom
catalysts
are
promising
oxygen
evolution
reaction
(OER)
electrocatalysts
for
proton
exchange
membrane
water
electrolysis
(PEMWE),
as
they
can
reduce
the
reliance
on
costly
Ir
in
OER
catalysts.
However,
their
practical
application
is
hindered
by
limited
stability
during
PEMWE
operation.
Herein,
we
report
activation
of
Ir-doped
CoMn2O4
acidic
electrolyte
that
leads
to
enhanced
activity
and
long-term
In-depth
material
characterization
combined
with
electrochemical
analysis
theoretical
calculations
reveal
activating
induces
controlled
restructuring
atoms
IrOx
nanoclusters,
resulting
an
optimized
configuration
outstanding
mass
3562
A
gIr–1
at
1.53
V
(vs
RHE)
stability.
The
using
activated
exhibited
a
stable
operation
>1000
h
250
mA
cm–2
low
degradation
rate
0.013
mV
h–1,
demonstrating
its
applicability.
Furthermore,
it
remained
more
than
400
high
current
density
1000
cm–2,
durability
under
conditions.
Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(19), P. 6387 - 6395
Published: Jan. 1, 2024
A
triple
Sr
2
CaRu
IrO
9
perovskite
oxide
with
excellent
performance
as
an
acidic
OER
electrocatalyst
has
been
successfully
synthesized.
It
effectively
controls
excessive
lattice
oxygen
participation
in
the
through
LOM.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 12, 2024
Abstract
Ruthenium
Dioxide
(RuO
2
),
as
one
of
the
most
promising
alternatives
to
IrO
,
suffers
from
severe
dissolution
and
overoxidation
Ru
active
sites
during
acidic
oxygen
evolution
reaction
(OER),
which
hinders
its
practical
application.
Herein,
study
constructs
a
short‐range
ordered
tantalum
single
atoms‐doped
RuO
catalyst
(Ta‐RuO
)
with
asymmetric
Ru‐O‐Ta(‐O‐Ta)
units
for
enhanced
OER.
The
Ta‐RuO
exhibits
superior
catalytic
activity
an
overpotential
201
mV
at
10
mA
cm
−2
long‐lasting
stability
280
h.
Physical
characterizations
combined
electrochemical
tests
reveal
that
incorporation
atomically
arranged
Ta
atoms
induces
significant
tensile
strain,
effectively
optimizing
adsorption
strength
oxygen‐containing
intermediates
by
regulating
d
‐band
center
weakening
Ru‐O
covalency,
thus
boosting
activity.
Furthermore,
formed
local
structure
is
well
maintained
OER
process
owing
synergy
strong
corrosion
resistance
Ta‐O
bonds
electron
transfers
via
bridge
stabilizing
sites,
contributing
stability.
This
provides
novel
method
corrosion‐resistant
significantly
enhance
cost‐effective
catalysts.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 28, 2024
High-efficiency
catalysts
with
refined
electronic
structures
are
highly
desirable
for
promoting
the
kinetics
of
oxygen
evolution
reaction
(OER)
and
enhancing
catalyst
durability.
This
study
comprehensively
explores
strategies
involving
metal
doping
vacancies
acidic
OER
catalytic
activity
Co
