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
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(31), P. 19958 - 19967
Published: Jan. 1, 2024
Wrinkled
Ir-doped
manganese
oxide
(Ir-MnO
x
)
nanospheres
have
been
prepared
via
a
facile
metal–organic
framework-directed
strategy
as
pH-universal
OER
electrocatalysts.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 28, 2024
Abstract
The
design
of
electrocatalysts
for
oxygen
evolution
reaction
(OER)
remains
a
limitation
industrial
hydrogen
production
by
electrolysis
water.
Excellent
and
stable
OER
catalysts
can
be
developed
activating
lattice
changing
the
path.
Herein,
S
FeOOH
on
Co(OH)
2
nanoneedle
arrays
are
introduced
to
construct
heterostructure
(S‐FeOOH/Co(OH)
/NF)
as
proof
concept.
Theoretical
calculations
experimental
suggest
that
Co‐O‐Fe
motif
formed
at
heterogeneous
interface
with
introduction
FeOOH,
inducing
electron
transfer
from
Co
Fe,
enhancing
Co─O
covalency
reducing
intramolecular
charge
energy,
thereby
stimulating
direct
coupling.
Doping
in
further
accelerates
transfer,
improves
activity,
prevents
dissolution
FeOOH.
Consequently,
overpotential
S‐FeOOH/Co(OH)
/NF
is
only
199
mV
10
mA
cm
−2
,
coupled
Pt/C
electrode
up
1
A
under
1.79
V
remain
over
120
h
an
anion
exchange
membrane
water
electrolyzer
(AEMWE).
This
work
proposes
strategy
efficient
promotes
commercialization
AEMWE.
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
