Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 10, 2025
Abstract
Currently,
atomically
dispersed
catalysts
(ADCs),
including
single‐atom
(SACs),
dual‐atom
(DACs),
and
triple‐atom
(TACs),
have
become
the
hot
topic
in
heterogeneous
catalysis
field
since
they
exceptional
atomic
efficiency
catalytic
performance
various
reactions.
In
this
review,
recent
advances
ADCs
for
overall
water
splitting
are
summarized,
SACs,
DACs,
TACs.
First,
mechanisms
of
HER
OER
reactions
electrocatalysis,
photocatalysis,
thermocatalysis
presented.
Second,
(including
OER)
on
with
different
supports
systematically
reviewed.
Third,
new
novel
proposed
to
design
splitting,
tandem
catalysts,
frustrated
Lewis
pairs
(FLP),
SAC+FLP,
so
on.
Finally,
prospective
a
summary
as
well
challenges
opportunities
outlined,
which
provide
insights
into
future
development
high‐performance
clean
sustainable
energy
production.
ACS Energy Letters,
Journal Year:
2024,
Volume and Issue:
9(5), P. 2182 - 2192
Published: April 12, 2024
Introducing
oxygen
vacancies
into
Co-based
oxides
with
different
surface
structures
can
significantly
affect
their
coordination
environments
and
electronic
structures,
possibly
contributing
to
the
variation
of
electrocatalytic
evolution
reaction
(OER)
activity.
Herein,
were
introduced
Co3O4
cubes
truncated
octahedrons
uncover
effects
facets
(001)
(111)
on
intrinsic
OER
activity
oxygen-defective
Co3O4.
The
(001)-faceted
exhibited
a
lower
onset
overpotential
298
mV
than
that
multifaceted
(335
mV)
because
sufficient
lattice
participation
in
process.
Theoretical
calculations
revealed
vacancy
surfaces
upshift
O
2p
band
center
trigger
oxidation
mechanism
while
matched
well
absorbate
mechanism.
This
work
offers
new
insight
for
designing
electrocatalysts
by
selectively
introducing
defects
well-defined
crystal
facets.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 10, 2024
Abstract
Designing
efficient,
durable,
and
cheap
bifunctional
electrocatalysts
is
a
challenging
goal
in
water
splitting.
Herein,
trivanadium‐substituted
Keggin‐type
polyoxometalate
H
6
PV
3
Mo
9
O
40
(POM)
Fe
0.2
Ni
0.8
Co
2
4
(FNCO)
are
situ
grown
onto
nickel
foam
(NF)
yielding
self‐supporting
nanoflower‐like
heterojunction
via
convenient
hydrothermal
reaction.
The
POM‐Fe
/NF
as
HER
OER
electrocatalyst,
displays
low
overpotential
(89
259
mV)
high
electrode
stability
at
10
mA
cm
−2
.
POM‐FNCO/NF
the
cathode
anode
requires
lower
voltage
(1.58
V)
to
provide
for
overall
splitting
(OWS),
which
better
than
that
of
commercial
catalysts.
electronic
sponge
characteristics
POM
more
active
sites
fast
reaction
kinetics
OER.
synergy
FNCO
optimizes
electron
distribution
interface
enhances
intrinsic
activity
HER/OER.
Density
Functional
Theory
(DFT)
calculations
show
molecules
preferentially
bind
on
POM‐FNCO.
Additionally,
has
proton‐coupled
transfer
properties
its
modified
exhibits
thermodynamic
advantages.
synergistic
effect
these
two
factors
enables
efficient
This
study
offers
novel
pathway
construction
catalysts
by
growth
nanoclusters
spinel
oxide
sub‐nanometer
heterojunctions
NF.
Small,
Journal Year:
2024,
Volume and Issue:
20(27)
Published: Jan. 28, 2024
Abstract
Development
of
robust
electrocatalysts
for
the
oxygen
evolution
reaction
(OER)
underpins
efficient
production
green
hydrogen
via
anion
exchange
membrane
water
electrolysis
(AEMWE).
This
study
elucidates
factors
contributing
to
degradation
cobalt‐based
(Co‐based)
OER
catalysts
synthesized
electrodeposition,
thus
establishing
strategic
approaches
enhance
their
longevity.
Systematic
variations
in
electroplating
process
and
subsequent
heat
treatment
reveal
a
delicate
balance
between
catalytic
activity
durability,
substantiated
by
comprehensive
electrochemical
assessments
material
analyses.
Building
upon
these
findings,
Co‐based
anode
is
successfully
optimized
AEMWE
single‐cell
configuration,
showcasing
an
average
rate
0.07
mV
h
−1
over
continuous
operation
1500
at
current
density
1
A
cm
−2
.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(29), P. 18047 - 18070
Published: Jan. 1, 2024
OER
plays
a
crucial
role
in
energy
storage
and
conversion,
the
application
of
thermal
fields
is
widespread
but
not
systematically
discussed.
In
this
work,
we
have
discussion
on
built-in
electric
field
extra
field.
Small,
Journal Year:
2023,
Volume and Issue:
20(8)
Published: Oct. 10, 2023
Abstract
The
adsorption
energy
of
the
reaction
intermediates
has
a
crucial
influence
on
electrocatalytic
activity.
Ni‐based
materials
possess
high
oxygen
evolution
(OER)
performance
in
alkaline,
however
too
strong
binding
*OH
and
barrier
rate‐determining
step
(RDS)
severely
limit
their
OER
Herein,
facile
strategy
is
shown
to
fabricate
novel
vertical
nanorod‐like
arrays
hybrid
structure
with
interface
contact
S‐doped
Ni(OH)
2
CeO
situ
grown
Ni
foam
(S‐Ni(OH)
/CeO
/NF)
through
one‐pot
route.
alcohol
molecules
oxidation
experiments
theoretical
calculations
demonstrate
that
S‐doping
‐interfacing
significantly
modulate
energies
toward
optimal
value
reduce
RDS,
contributing
remarkable
activity
for
S‐Ni(OH)
/NF
an
ultralow
overpotential
196
mV
at
10
mA
cm
−2
long‐term
durability
over
150
h
OER.
This
work
offers
efficient
doping
interfacing
tune
obtaining
high‐performance
electrocatalysts.
