Abstract
Boosting
the
reaction
stability
without
sacrificing
activity
and
cost
is
extremely
important
but
full
of
challenges
for
RuO
2
‐based
oxygen
evolution
catalysts.
Herein,
porous
B‐site
substituted
Y
[Mn
0.2
Ru
0.8
]
O
7
(p‐Y
)
pyrochlore
toward
innovatively
synthesized.
The
formed
meso‐/macroporous
structure
can
increase
specific
surface
area
corresponding
active
sites,
meanwhile,
Mn‐substitution
modulate
electronic
structure,
stabilize
morphology,
reduce
dosage
species.
Interestingly,
p‐Y
performs
50
h
stable
operation,
significantly
outperforming
commercial
(CM)
counterpart
with
less
than
life.
Furthermore,
required
overpotential
to
achieve
10
mA
cm
−2
only
266
mV,
accompanied
favorable
kinetics
catalyst
utilization.
Chemical Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 3, 2025
Metal
nanomaterials
with
unconventional
phases
have
been
recently
developed
a
variety
of
methods
and
exhibit
novel
attractive
properties
such
as
high
activities
for
various
catalytic
reactions
magnetic
properties.
In
this
review,
we
discuss
the
progress
trends
in
strategies
synthesis,
crystal
structure,
phase-controlled
metal
terms
elements
combination
alloys.
We
begin
brief
introduction
anomalous
phase
behavior
derived
from
nanosize
effect
general
structures
observed
nanomaterials.
Then,
control
monometallic
respect
to
each
element
alloy
classified
into
three
types
based
on
their
is
discussed.
end,
all
content
introduced
review
summarized,
challenges
advanced
are
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(35), С. 23297 - 23314
Опубликована: Янв. 1, 2024
In
this
review
paper,
we
emphatically
summarize
the
improvement
strategies
of
Ru-based
acidic
OER
catalysts
and
their
application
in
PEMWEs.
Further
challenges
directions
development
are
also
speculated.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(30), С. 18751 - 18773
Опубликована: Янв. 1, 2024
This
review
covers
advancements
in
noble
and
non-noble
metal
oxides
for
acidic
OER,
emphasizing
the
evaluation
of
catalyst
instability,
strategies
to
enhance
IrO
2
,
RuO
TM
oxides.
Energy & Fuels,
Год журнала:
2024,
Номер
38(13), С. 11521 - 11540
Опубликована: Июнь 18, 2024
Proton
exchange
membrane
water
electrolysis
(PEMWE)
technology
is
seen
as
the
most
compatible
hydrogen
production
with
renewable
energy
generation.
However,
sluggish
kinetics
of
anodic
oxygen
evolution
reaction
(OER)
and
scarcity
acid-resistant,
high-activity,
low-cost
catalysts
have
seriously
hindered
overall
efficiency
manufacturing
costs
PEMWE.
Recently,
ruthenium
(Ru)-based
materials
gradually
attracted
attention
due
to
their
suitable
binding
strength
toward
intermediates
lowest
price
in
noble
metal
family.
Herein,
great
achievements
progress
Ru-based
acidic
OER
electrocatalysts
are
comprehensively
reviewed,
which
started
a
general
description
mechanisms
situ
characterization
techniques
understand
structure–activity
relationships.
Subsequently,
some
typical
strategies
enhance
activity
stability
highlighted.
Insights
from
synthesis
methods,
advanced
characterizations,
intermediate
evolution,
theoretical
calculations
provided,
together
our
viewpoints
on
daunting
challenges
future
endeavors
for
practical
employment.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 21, 2025
The
development
of
acid-stable
water
oxidation
electrocatalysts
is
crucial
for
high-performance
energy
conversion
devices.
Different
from
traditional
nanostructuring,
here
we
employ
an
innovative
microwave-mediated
electron–phonon
coupling
technique
to
assemble
specific
Ru
atomic
patterns
(instead
random
Ru-particle
depositions)
on
Mn0.99Cr0.01O2
surfaces
(RuMW-Mn1-xCrxO2)
in
RuCl3
solution
because
hydrated
Ru-ion
complexes
can
be
uniformly
activated
replace
some
Mn
sites
at
nearby
Cr-dopants
through
microwave-triggered
coherent
superposition
with
molecular
rotations
and
collisions.
This
selective
rearrangement
RuMW-Mn1-xCrxO2
particular
spin-differentiated
polarizations
induce
localized
spin
domain
inversion
reversed
parallel
direction,
which
makes
demonstrate
a
high
current
density
1.0
A
cm−2
1.88
V
over
300
h
stability
proton
exchange
membrane
electrolyzer.
cost
per
gallon
gasoline
equivalent
the
hydrogen
produced
only
43%
2026
target
set
by
U.S.
Department
Energy,
underscoring
economic
significance
this
nanotechnology.
Here,
authors
report
assembly
atoms
that
enhances
spin-sensitive
acidic
oxidation.
Inorganic Chemistry Frontiers,
Год журнала:
2024,
Номер
11(19), С. 6333 - 6342
Опубликована: Янв. 1, 2024
The
M(OH)
x
/Fe
3
O
4
/IF
catalyst
exhibited
low
overpotential
of
214
mV
for
the
OER
at
current
density
50
mA
cm
−2
.
in
situ
Raman
spectra
revealed
that
reconstruction
boosted
activity.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(42), С. 15307 - 15343
Опубликована: Окт. 11, 2024
The
proton
exchange
membrane
water
electrolyzer
(PEMWE)
is
regarded
as
the
most
promising
technique
to
convert
intermittent
renewable
energy
sources
into
clean
and
storable
hydrogen
through
electrocatalytic
splitting.
However,
commercial
electrocatalysts
for
evolution
reaction
(HER)
oxygen
(OER)
are
based
on
expensive
platinum
group
metals
(PGMs),
which
predominantly
hinder
large-scale
application
of
PEMWE.
Single-atom
(SAECs)
with
atomic
level
dispersion
metal
active
sites
can
greatly
minimize
usage
amount
precious
while
keeping
efficient
activities.
These
advantages
make
SAECs
attractive
their
in
In
this
review,
mechanism
HER
OER,
together
general
synthesis
strategies
SAECs,
was
introduced
discussed.
Subsequently,
recent
development
(non)precious
acidic
HER,
overall
splitting
summarized,
highlighted
understanding
between
electronic
structure
performance.
Finally,
challenges
perspectives
proposed.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Oxygen-defective
RuO
x
nanoparticles
are
synthesized
through
a
one-step
sol–gel
process,
which
show
outstanding
activity
and
stability
for
acidic
oxygen
evolution
reaction
at
high
current
densities
due
to
the
predominant
adsorbate
mechanism.
