Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Growing
global
population,
escalating
energy
consumption,
and
climate
change
threaten
future
security.
Fossil
fuel
combustion,
primarily
coal,
oil,
natural
gas,
exacerbates
the
greenhouse
effect
driving
warming
through
CO
Dalton Transactions,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
MIL-100(Fe)/TiO
2
/CoO
x
was
synthesized
through
a
facile
microwave-assisted
hydrothermal
method
followed
by
atomic
layer
deposition
and
exhibits
exceptional
photocatalytic
OER
performance.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 13, 2025
Abstract
The
acidic
oxygen
evolution
reaction
(OER)
electrocatalysts
for
proton
exchange
membrane
electrolyzer
(PEMWE)
often
face
a
trade‐off
between
activity
and
stability
due
to
inherent
linear
relationship
overoxidation
of
metal
atoms
in
highly
oxidative
environments,
while
following
the
conventional
adsorbate
mechanism
(AEM).
Herein,
favorable
AEM‐derived
acceptor‐electron
donor
(PAEDM)
is
proposed
RuO
2
by
constructing
interstitial‐substitutional
mixed
solid
solution
structure
(denoted
as
C,Ta‐RuO
),
which
can
effectively
break
activity‐stability
OER.
In
situ
spectroscopy
experiments
theoretical
calculations
reveal
that
interstitial
C
acceptor
reduces
deprotonation
energy
barrier,
enhancing
catalytic
activity,
substitutional
Ta
electron
donates
electrons
Ru
sites
via
bridging
oxygen,
weakening
Ru─O
bond
covalency
preventing
over‐oxidation
surface
Ru,
thereby
ensuring
long‐term
stability.
Under
guidance
this
mechanism,
optimized
simultaneously
achieves
far
low
overpotential
(η
10
=
171
mV)
ultra‐long
(over
1300
h)
More
remarkably,
homemade
PEMWE
using
anode
also
shows
high
water
splitting
performance
(1.63
V@1
A
cm
−2
).
This
work
supplies
novel
strategy
guide
future
developments
on
efficient
OER
toward
oxidation.
