Small,
Journal Year:
2024,
Volume and Issue:
20(45)
Published: July 29, 2024
In
light
of
the
intensifying
global
energy
crisis
and
mounting
demand
for
environmental
protection,
it
is
vital
importance
to
develop
advanced
hydrogen
conversion
systems.
Electrolysis
cells
production
fuel
cell
devices
utilization
are
indispensable
in
conversion.
As
one
electrolysis
cells,
water
splitting
involves
two
electrochemical
reactions,
evolution
reaction
oxygen
reaction.
And
reduction
coupled
with
oxidation
reaction,
represent
core
electrocatalytic
reactions
devices.
However,
inherent
complexity
lack
a
clear
understanding
structure-performance
relationship
these
have
posed
significant
challenges
advancement
research
this
field.
work,
recent
development
revealing
mechanism
systems
reviewed,
including
situ
characterization
theoretical
calculation.
First,
working
principles
applications
operando
measurements
unveiling
systematically
introduced.
Then
application
calculations
design
catalysts
investigation
discussed.
Furthermore,
opportunities
also
summarized
discussed
paving
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 11, 2024
The
core
of
clean
energy
technologies
such
as
fuel
cells,
water
electrolyzers,
and
metal-air
batteries
depends
on
a
series
oxygen
hydrogen-based
electrocatalysis
reactions,
including
the
reduction
reaction
(ORR),
evolution
(OER)
hydrogen
(HER),
which
necessitate
cost-effective
electrocatalysts
to
improve
their
efficiency.
In
recent
decade,
complex
metal
oxides
(beyond
simple
transition
oxides,
spinel
ABO
Advanced Materials Interfaces,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 25, 2025
Abstract
This
review
highlights
recent
advancements
in
enhancing
oxygen
evolution
reaction
kinetics
through
the
design
of
single‐atom
catalysts.
By
leveraging
unique
properties
catalysts
(SACs),
including
high
atom
utilization
and
tunable
electronic
structures,
researchers
have
developed
with
superior
activity
stability
for
(OER).
Key
strategies
SACs
design,
such
as
support
selection,
coordination
environment,
doping
effects
are
discussed,
while
also
examining
role
advanced
characterization
techniques
elucidating
catalytic
mechanisms.
Finally,
future
directions
challenges
field
outlined
to
guide
development
next‐generation
OER
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(44)
Published: July 31, 2024
Abstract
The
precise
regulation
of
single‐atom
catalysts
(SACs)
with
the
desired
local
chemical
environment
is
vital
to
elucidate
relationship
between
SACs
structure
and
catalytic
performance.
debate
on
effect
coordination
quite
complicated
even
for
same
composition
nature,
calling
increased
attention
second
shell.
For
oxide‐supported
SACs,
it
remains
a
significant
challenge
precisely
manipulate
shell
single
atoms
supported
oxides
due
structural
robustness
oxides.
Here,
Ir
were
anchored
NiO
supports
via
different
bonding
strategies,
resulting
in
diverse
Ir−O−Ni
numbers
sites.
Specifically,
1
/NiO,
−NiO,
@NiO
increasing
3,
4,
5
synthesized,
respectively.
We
found
that
activity
three
samples
towards
oxygen
evolution
reaction
(OER)
exhibited
volcano‐shaped
number,
−NiO
showing
lowest
overpotential
225
mV
at
10
mA
cm
−2
.
Mechanism
investigations
indicate
moderate
number
creates
higher
occupied
d
z2
orbital,
weakening
adsorption
strength
*OOH
intermediates
thereby
enhancing
OER
activity.
