Dual Doping in Precious Metal Oxides: Accelerating Acidic Oxygen Evolution Reaction
International Journal of Molecular Sciences,
Год журнала:
2025,
Номер
26(4), С. 1582 - 1582
Опубликована: Фев. 13, 2025
Developing
a
highly
active
and
stable
catalyst
for
acidic
oxygen
evolution
reactions
(OERs),
the
key
half-reaction
proton
exchange
membrane
water
electrolysis,
has
been
one
of
most
cutting-edge
topics
in
electrocatalysis.
A
dual-doping
strategy
optimizes
electronic
environment,
modifies
coordination
generates
vacancies,
introduces
strain
effects
through
synergistic
effect
two
elements
to
achieve
high
catalytic
performance.
In
this
review,
we
summarize
progress
dual
doping
RuO2
or
IrO2
OERs.
The
three
main
mechanisms
OERs
are
dicussed
firstly,
followed
by
detailed
examination
development
history
catalysts,
from
experimentally
driven
systems
machine
learning
(ML)
theoretical
screening
systems.
Lastly,
provide
summary
remaining
challenges
future
prospects,
offering
valuable
insights
into
Язык: Английский
Phase‐Engineered Bi‐RuO2 Single‐Atom Alloy Oxide Boosting Oxygen Evolution Electrocatalysis in Proton Exchange Membrane Water Electrolyzer
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 16, 2025
Abstract
Engineering
nanomaterials
at
single‐atomic
sites
can
enable
unprecedented
catalytic
properties
for
broad
applications,
yet
it
remains
challenging
to
do
so
on
RuO
2
‐based
electrocatalysts
proton
exchange
membrane
water
electrolyzer
(PEMWE).
Herein,
the
rational
design
and
construction
of
Bi‐RuO
single‐atom
alloy
oxide
(SAAO)
are
presented
boost
acidic
oxygen
evolution
reaction
(OER),
via
phase
engineering
a
novel
hexagonal
close
packed
(
hcp
)
RuBi
alloy.
This
SAAO
electrocatalyst
exhibits
low
overpotential
192
mV
superb
stability
over
650
h
10
mA
cm
−2
,
enabling
practical
PEMWE
that
needs
only
1.59
V
reach
1.0
A
under
industrial
conditions.
Operando
differential
electrochemical
mass
spectroscopy
analysis,
coupled
with
density
functional
theory
studies,
confirmed
adsorbate‐evolving
mechanism
incorporation
Bi
1
improves
activity
by
electronic
optimization
hindering
surface
Ru
demetallation.
work
not
introduces
new
strategy
fabricate
high‐performance
atomic‐level,
but
also
demonstrates
their
potential
use
in
electrolyzers.
Язык: Английский
Atomic-Level Tin Regulation for High-Performance Zinc–Air Batteries
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 30, 2025
The
trade-off
between
the
performances
of
oxygen
reduction
reaction
(ORR)
and
evolution
(OER)
presents
a
challenge
in
designing
high-performance
aqueous
rechargeable
zinc–air
batteries
(a-r-ZABs)
due
to
sluggish
kinetics
differing
requirements.
Accurate
control
atomic
electronic
structures
is
crucial
for
rational
design
efficient
bifunctional
electrocatalysts.
Herein,
we
designed
Sn–Co/RuO2
trimetallic
oxide
utilizing
dual-active
sites
tin
(Sn)
regulation
strategy
by
dispersing
Co
(for
ORR)
auxiliary
Sn
into
near-surface
surface
RuO2
OER)
enhance
both
ORR
OER
performances.
Both
theoretical
calculations
advanced
dynamic
monitoring
experiments
revealed
that
effectively
regulated
atomic/electronic
environment
Ru
sites,
which
optimized
*OOH/*OH
adsorption
behavior
promoted
release
final
products,
thus
breaking
limits.
Therefore,
as-designed
catalysts
exhibited
superb
performance
with
an
potential
difference
(ΔE)
0.628
V
negligible
activity
degradation
after
200,000
or
20,000
CV
cycles.
a-r-ZABs
based
on
catalyst
higher
at
wide
temperature
range
−30
65
°C.
They
demonstrated
ultralong
lifespan
138
days
(20,000
cycles)
5
mA
cm–2,
39.7
times
than
Pt/C
+
IrO2
coupled
low
−20
Additionally,
they
maintained
initial
power
density
85.8%
long-term
tests,
significantly
outperforming
previously
reported
catalysts.
More
importantly,
also
showed
excellent
stability
766.45
h
(about
4598
high
current
10
cm–2.
Язык: Английский
Recent Development of Ir- and Ru-Based Electrocatalysts for Acidic Oxygen Evolution Reaction
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 26, 2025
Proton
exchange
membrane
(PEM)
water
electrolyzers
are
one
type
of
the
most
promising
technologies
for
efficient,
nonpolluting
and
sustainable
production
high-purity
hydrogen.
The
anode
catalysts
account
a
very
large
fraction
cost
in
PEM
electrolyzer
also
determine
lifetime
electrolyzer.
To
date,
Ir-
Ru-based
materials
types
acidic
oxygen
evolution
reaction
(OER),
but
they
still
face
challenges
high
or
low
stability.
Hence,
exploring
Ir
stable
electrocatalysts
OER
attracts
extensive
research
interest
recent
years.
Owing
to
these
great
efforts,
significant
developments
have
been
achieved
this
field.
In
review,
field
comprehensively
described.
possible
mechanisms
first
presented,
followed
by
introduction
criteria
evaluation
electrocatalysts.
development
then
elucidated
according
strategies
utilized
tune
catalytic
performances.
Lastly,
future
burgeoning
is
discussed.
Язык: Английский
Multiple Functional Engineering Strategies and Active Site Identification in Ru‐Based Electrocatalysts for Catalytic Conversion Reactions
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 3, 2025
Electrochemical
conversion
has
been
regarded
as
an
ideal
technology
for
achieving
clean
and
sustainable
energy,
showing
significant
promise
in
addressing
the
increasingly
serious
energy
crisis
environmental
pollution.
Ru-containing
electrocatalysts
(RUCE)
outperform
other
precious
metals
due
to
elevated
intrinsic
activity
superior
cost-effectiveness,
developing
into
a
promising
candidate
electrochemical
reactions.
A
challenge
field
of
catalyst
discovery
lies
its
heavy
reliance
on
empirical
methods,
rather
than
approaches
that
are
rooted
rational
design
principles.
This
review
first
concentrates
catalytically
active
sites
critical
factors
governing
catalytic
performance
durability.
Then,
comprehensive
summary
multifunctional
modification
strategies
ranging
from
nanoscale
atomic
scale
is
explored
control
structure
improve
performance.
By
unveiling
roles
each
component
modified
RUCE
at
level,
their
identified
discussed
establish
structure-performance
relationship
catalysts.
Finally,
challenges
perspectives
Ru-based
materials
hydrogen,
oxygen,
nitrogen
reactions
presented
inspire
further
efforts
toward
understanding
meet
ever-growing
demand
future.
Язык: Английский
Advances in Ru-based Acidic OER Electrocatalysts: Addressing the Activity-Stability Trade-off
Опубликована: Апрель 1, 2025
Язык: Английский
Oxygen vacancy engineering of core-shelled Nickel-Molybdenum dioxide nanoparticles doped by Ruthenium atoms for overall anion exchange membrane water electrolysis
Journal of Colloid and Interface Science,
Год журнала:
2025,
Номер
unknown, С. 137754 - 137754
Опубликована: Апрель 1, 2025
Язык: Английский
Significantly Enhanced Acidic Oxygen Evolution Reaction Performance of RuO2 Nanoparticles by Introducing Oxygen Vacancy with Polytetrafluoroethylene
Polymers,
Год журнала:
2024,
Номер
17(1), С. 59 - 59
Опубликована: Дек. 29, 2024
The
supported
RuO2
catalysts
are
known
for
their
synergistic
and
interfacial
effects,
which
significantly
enhance
both
catalytic
activity
stability.
However,
polymer-supported
have
received
limited
attention
due
to
challenges
associated
with
poor
conductivity.
In
this
study,
we
successfully
synthesized
the
RuO2-polytetrafluoroethylene
(PTFE)
catalyst
via
a
facile
annealing
process.
optimized
nucleation
growth
strategies
enable
formation
of
particles
(~13.4
nm)
encapsulating
PTFE,
establishing
conductive
network
that
effectively
addresses
conductivity
issue.
Additionally,
PTFE
induces
generation
oxygen
vacancies
stable
RuO2/PTFE
interfaces,
further
acidic
OER
stability
RuO2.
As
result,
RuO2-PTFE
exhibits
low
overpotential
219
mV
at
10
mA
cm⁻2
in
three-electrode
system,
voltage
RuO2-PTFE||commercial
Pt/C
system
can
keep
1.50
V
800
h
cm−2.
This
work
underscores
versatility
as
substrate
fine-tuning
morphology,
crystal
defect,
interface
outerwear.
not
only
broadens
application
scope
synthesis
but
also
provides
novel
approach
design
high-performance
metallic
oxide
tailored
vacancy
concentration
polymer
Язык: Английский