Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 22, 2024
Abstract
Perovskite‐type
oxides
are
widely
employed
as
oxygen
evolution
reaction
(OER)
electrocatalysts
due
to
their
tunable
composition,
diverse
structure,
abundant
natural
reserves,
remarkable
stability,
and
low
cost.
The
intrinsic
OER
electrocatalytic
activity
of
these
perovskite
is
generally
enhanced
by
improving
conductivity,
increasing
specific
surface
area,
optimizing
the
adsorption
oxygen‐containing
intermediates.
This
achieved
through
rationally
designed
strategies,
including
compositional
engineering,
defect
hybridization,
regulation.
In
this
review,
recent
advances
in
for
summarized,
with
a
focus
on
exploring
structure‐performance
relationships.
review
provides
brief
introduction
application
OER,
followed
classification
characteristics
oxides.
primary
catalytic
mechanisms,
well‐established
descriptors
discussed.
key
strategies
concentrated
enhancing
activity,
composition
reconstruction.
Finally,
challenges
opportunities
developing
high‐performance
presented.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 3, 2025
Abstract
Oxygen
electrocatalysis
is
a
core
reaction
in
renewable
energy
devices,
greatly
promoting
the
transformation
and
upgrading
of
structure.
Nonetheless,
performance
conversion
devices
hindered
by
large
overpotential
slow
kinetics
oxygen
electrocatalytic
reactions.
Recently,
single‐atom
catalysts
(SACs)
have
emerged
as
promising
contenders
field
because
their
exceptional
metal
atom
utilization,
distinctive
coordination
environment,
adjustable
electronic
properties.
This
review
presents
latest
advancements
design
Co‐based
SACs
for
electrocatalysis.
First,
OER
ORR
mechanisms
are
introduced.
Subsequently,
strategies
regulating
structure
summarized
three
aspects,
including
centers,
support
carriers.
A
particular
emphasis
given
to
relationship
between
properties
catalysts.
Afterward,
applications
explored.
Ultimately,
challenges
prospects
prospected.
Nanoscale,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
The
cationic
viologen-based
metalloporphyrin
polymers
exhibit
excellent
hydrophilicity.
With
varied
metal
centers,
three
M-MV
specifically
catalyze
HER,
OER,
and
NO
2
−
RR
in
aqueous
solutions.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 19, 2025
Green
hydrogen
production
technology
is
an
effective
strategy
for
solving
energy
problems
and
environmental
issues.
In
this
paper,
we
report
a
bipolar
system:
Au–CuxO/CF∥Ru–CuxO/CF,
in
which
the
cathode
produces
through
evolution
reaction
(HER)
process
anode
formaldehyde
oxidation
(FOR).
It
found
that
when
Au–CuxO/CF
used
FOR,
C–H
bond
of
will
be
broken
at
low
potential
to
produce
reactive
H*.
H*
recombined
Tafel
step
(H*
+
⇌
H2)
H2.
At
same
time,
oxidized
high-value-added
product
HCOOH.
We
formation
grain
boundary-rich
structures
on
Au–CuxO
surface
jointly
promotes
potentials.
addition,
introduced
Ru
elements
into
CuxO
enhance
cathodic
HER.
The
FOR-HER
system
Au–CuxO/CF∥Ru–CuxO/CF
was
tested
flow
cell.
produced
current
density
500
mA
cm–2
only
0.38
V.
This
work
provides
construction
catalyst
design
ideas
voltages.
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 6, 2025
Water
dissociation
in
anion
exchange
membrane
water
electrolysis
(AEMWE)
faces
significant
energy
barriers,
posing
a
challenge
for
reducing
cell
voltage.
Herein,
we
engineered
CoP
nanosheets
by
doping
Er
and
hybridizing
with
NiCoP
to
optimize
local
electronic
states
accelerate
H2O
during
the
hydrogen
evolution
reaction.
The
resulting
Er0.1-CoP/NiCoP
catalyst
achieves
low
overpotential
of
154
mV
at
-500
mA
cm-2
1.0
M
KOH.
An
AEM
electrolyzer
comprising
an
Er0.1-CoP/NiCoP@NF
cathode
demonstrates
voltage
1.672
V
stability
exceeding
1000
h
500
(50
°C).
Characterization,
density
functional
theory
(DFT)
calculations,
ab
initio
molecular
dynamics
(AIMD)
simulations
reveal
that
hybridization
synergistically
modulate
charge
distribution
across
multisites,
shifting
p-band
centers
away
from
Fermi
level.
These
adjustments
free
H*
adsorption
(ΔGH*)
improve
OH*/H2O*
adsorption,
thereby
facilitating
H2
evolution.
Advanced Sustainable Systems,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 10, 2025
Abstract
Hydrogen
production
by
electrochemical
water
splitting
is
considered
to
be
a
key
strategic
energy
technology,
and
proton
exchange
membrane
electrolyzers
(PEMWEs)
anion
(AEMWEs)
are
ideal
technologies
for
green
hydrogen
in
recent
years.
However,
PEMWEs
AEMWEs
lack
low‐cost
high‐performance
acidic
oxygen
evolution
reaction
(OER)
alkaline
(HER)
electrocatalysts
respectively,
limiting
their
large‐scale
development.
Recently,
ruthenium
(Ru)‐based
have
received
lot
of
attention
because
activity
better
than
that
commercial
catalysts
price
more
affordable,
showing
great
potential
OER
HER.
there
still
obstacles
Ru‐based
practical
applications
industrial
electrolyzers,
regulatory
strategies
need
developed
further
optimize
its
performance.
Herein,
comprehensive
review
presented
concerning
it.
First,
fundamental
principles
focus
the
basic
content
application
discussed.
Then,
summarized,
providing
detailed
analysis
elucidate
mechanisms,
properties,
electrolyzers.
Finally,
outlooks
prospects
challenges
future
proposed.
