Abstract
Mass
transfer
factor
plays
an
indispensable
role
in
high
current
density
to
accelerate
the
oxygen
evolution
reaction
(OER)
process,
yet
research
on
modulating
reactant
mass
transport
remains
limited.
Herein,
by
leveraging
dual
acid‐base
properties
of
aluminum
sites,
both
activation
electronic
activity
layer
for
layered
double
hydroxides
(LDH)
and
construction
interlayer
hydroxide
coordination
field
(IHCF)
have
been
achieved
through
situ
electrochemical
reconstruction.
It
not
only
facilitates
charge
surface
catalytic
transformation
intermediates
but,
most
notably,
presence
IHCF
significantly
enhances
reactants.
As
a
result,
overpotential
LDHs
with
is
164
mV,
better
than
reported
Ni‐based
catalysts.
Deuterium
kinetic
isotope
effect
experiments
pH‐dependence
measurements
demonstrate
that
effectively
substrate
capability
structural
stability,
thereby
accelerating
proton‐coupled
electron
process.
To
further
validate
characteristics,
stability
tests
alkaline
flow
electrolyzer
show
catalysts
maintain
over
1000
h
at
density.
This
work
suggests
can
be
utilized
design
synthesis
efficient
water
oxidation
practical
application.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 26, 2025
Modulation
of
electronic
spin
states
in
cobalt-based
catalysts
is
an
effective
strategy
for
molecule
activations.
Crystalline-amorphous
interfaces
often
exhibit
unique
catalytic
properties
due
to
disruptions
long-range
order
and
alterations
structure.
However,
the
mechanisms
activation
at
remain
elusive.
Herein,
we
present
a
Co3O4
spinel-based
catalyst
featuring
crystalline-amorphous
interfaces.
Characterization
analyses
confirm
that
tetrahedral
Co2+
selectively
etched
from
bulk
spinel,
forming
amorphous
CoO
islands
on
surface.
The
resultant
symmetry
breaking
coordination
field
induces
reconstruction
Co3+
3
d
orbitals,
leading
high-spin
states.
In
CO
oxidation,
interface
serves
as
novel
active
sites
with
lower
energy
barrier,
facilitated
by
lattice
oxygen
activation.
N2O
decomposition,
promotes
reassociation
dissociated
through
quantum
exchange
interactions.
This
work
provides
straightforward
approach
modulating
state
elucidates
their
role
properties,
but
molecular
these
study
presents
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(27)
Опубликована: Май 11, 2024
Abstract
The
oxygen
evolution
reaction
(OER)
is
central
to
energy
conversion
technologies,
but
the
high
cost
and
scarcity
of
commercial
noble
metal
catalysts
limit
their
widespread
application.
Natural
products
exhibit
great
potential
in
preparing
high‐performance
electrocatalysts
due
cost‐effectiveness
sustainability.
Here,
a
kind
1D
polymers
[M‐EA
(M═Co,
Cu,
Ni)]
for
via
complexation
ellagic
acid
(EA)
with
ions
are
reported.
It
found
that
Ni‐EA
displays
low
overpotential
(190
mV
at
10
mA
cm
−2
)
an
ultralow
Tafel
slope
(28
dec
−1
),
production
only
3.6
×
%
IrO
2
.
Density
functional
theory
investigations
reveal
electrocatalytic
mechanism
OER.
A
rechargeable
Zn‐Air
battery
using
Ni‐EA+Pt/C
as
air
electrode
shows
lower
charging
better
cycling
stability
than
+Pt/C‐based
battery.
This
work
provides
train
development
state‐of‐the‐art
OER
catalysts.
Chemical Society Reviews,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 19, 2024
This
review
outlines
recent
advances
in
field-regulated
catalysis
and
reveals
the
key
role
of
dipole
manipulation
by
electric/magnetic/electromagnetic
fields.
Chemical Communications,
Год журнала:
2024,
Номер
60(58), С. 7397 - 7413
Опубликована: Янв. 1, 2024
In
recent
years,
there
has
been
significant
attention
towards
the
development
of
catalysts
that
exhibit
superior
performance
and
environmentally
friendly
attributes.
This
surge
in
interest
is
driven
by
growing
demands
for
energy
utilization
storage
as
well
environmental
preservation.
Spin
polarization
plays
a
crucial
role
catalyst
design,
comprehension
catalytic
mechanisms,
reaction
control,
offering
novel
insights
design
highly
efficient
catalysts.
However,
are
still
some
research
gaps
current
study
spin
catalysis.
Therefore,
it
urgent
to
understand
how
impacts
reactions
develop
Herein,
we
present
comprehensive
summary
application
Firstly,
summarize
fundamental
mechanism
from
two
aspects
kinetics
thermodynamics.
Additionally,
review
regulation
various
applications
several
approaches
modulate
polarization.
Moreover,
discuss
future
catalysis
propose
potential
avenues
further
progress.
We
aim
improve
systems
through
implementing
distinctive
engineering
strategy.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 27, 2024
Abstract
Asymmetric
coordination
has
emerged
as
a
promising
approach
to
enhance
the
oxygen
evolution
reaction
(OER)
activity,
yet
achieving
controlled
synthesis
of
asymmetric
structures
comprehensively
understand
structure‐activity
relationship
remains
challenging.
In
this
study,
facile
and
effective
symmetry‐breaking
strategy
is
reported
for
tailoring
MO
5
S
1
‐type
metal–organic
frameworks
(MOFs)
catalyst,
establishing
correlation
between
sulfur
(S)‐mediated
electron
rearrangement
adsorption/desorption
dynamics
oxygen‐related
intermediates
in
OER.
Experimental
theoretical
calculations
reveal
that
well‐designed
structure
can
effectively
lower
d‐band
center,
optimizing
adsorption
behavior
OH
*
significantly
decreasing
energy
barrier
rate‐determining
step
(OH
→
O
)
with
enhanced
O–H
bond
cleavage
process.
The
S‐NiFe‐MOF/CFP
catalyst
demonstrates
remarkable
OER
performance
an
alkaline
electrolyte
environment.
More
importantly,
self‐assembled
anion
exchange
membrane
water
electrolysis
cell
showcases
low
voltage
1.84
V
deliver
current
density
A
cm
−2
,
maintaining
long‐term
stability
over
100
h.
This
study
unveils
precise
employing
S,
highlighting
critical
role
manipulating
redistribution
through
promote
catalytic
activity
develop
advanced
MOF‐based
catalysts.
