Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 10, 2025
Abstract
The
design
and
fabrication
of
non‐precious
metal
materials
for
bifunctional
oxygen
electrocatalytic
properties
with
reversible
reduction
reaction
(ORR)
evolution
(OER)
has
been
a
research
hotspot
in
the
field
zinc–air
batteries.
Herein,
hierarchical
carbon
nanofiber
immobilized
iron
cobalt
oxide
particles
(FeCoO
x
)
Fe‐N
sites
catalyst
is
synthesized
through
electrostatic
spinning
situ
polymerization
pyrrole
coupled
pyrolysis.
FeCoO
/Fe─N─C
demonstrates
superior
performance
(E
1/2
=
0.91
V,
η
10
350
mV).
Liquid
batteries
employing
exhibit
high
power
184.8
mW
cm
−2
more
than
580
cycles
stable
cycling
ability.
Additionally,
incorporation
cobaltite
introduces
extra
electrons
optimizes
adsorption
capacity
intermediates,
effectively
boosting
inherent
ORR
activity.
experimental
results
illustrate
that
special
geometrical
structure
spinel
ferrite
provides
excellent
OER
catalytic
performance.
Theoretical
calculations
indicate
shifts
d‐band
center
closer
to
Fermi
level
f
),
thereby
modulating
hybridization
between
Fe
3d
O
2p
orbitals.
This
work
offers
an
effective
approach
constructing
coupling
catalysts
have
single
atoms
coexisting
efficient
catalysis.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Июль 9, 2024
Combining
single
atoms
with
clusters
or
nanoparticles
is
an
emerging
tactic
to
design
efficient
electrocatalysts.
Both
synergy
effect
and
high
atomic
utilization
of
active
sites
in
the
composite
catalysts
result
enhanced
electrocatalytic
performance,
simultaneously
provide
a
radical
analysis
interrelationship
between
structure
activity.
In
this
review,
recent
advances
single-atomic
site
coupled
are
emphasized.
Firstly,
synthetic
strategies,
characterization,
dynamics
types
clusters/nanoparticles
introduced,
then
key
factors
controlling
discussed.
Next,
several
clean
energy
catalytic
reactions
performed
over
synergistic
illustrated.
Eventually,
encountering
challenges
recommendations
for
future
advancement
energy-transformation
electrocatalysis
outlined.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(22), С. 15356 - 15365
Опубликована: Май 22, 2024
Electrosynthesis
has
emerged
as
an
enticing
solution
for
hydrogen
peroxide
(H2O2)
production.
However,
efficient
H2O2
generation
encounters
challenges
related
to
the
robust
gas–liquid–solid
interface
within
electrochemical
reactors.
In
this
work,
we
introduce
effective
hydrophobic
coating
modified
by
iron
(Fe)
sites
optimize
reaction
microenvironment.
This
modification
aims
mitigate
radical
corrosion
through
Fe(II)/Fe(III)
redox
chemistry,
reinforcing
microenvironment
at
three-phase
interface.
Consequently,
achieved
a
remarkable
yield
of
up
336.1
mmol
h–1
with
sustained
catalyst
operation
extensive
duration
230
h
200
mA
cm–2
without
causing
damage
Additionally,
Faradaic
efficiency
exceeded
90%
across
broad
range
test
current
densities.
surface
chemistry
approach
manipulating
not
only
advances
long-term
electrosynthesis
but
also
holds
promise
other
gas-starvation
reactions.
npj Materials Sustainability,
Год журнала:
2025,
Номер
3(1)
Опубликована: Янв. 7, 2025
Abstract
Advanced
Oxidation
Processes
(AOPs)
are
promising
for
treating
persistent
pollutants,
yet
challenges
arise
due
to
the
step-wise
oxidants
activation
process,
which
traditional
single-active-center
catalysts
struggle
facilitate
effectively.
Recently,
dual-active-center
have
emerged
as
a
solution
by
enabling
synergistic
reactions.
This
review
covers
advances
in
these
catalysts,
their
co-catalytic
mechanisms,
and
applications
electro-Fenton,
photocatalytic,
peroxymonosulfate-,
pollutant-as-electron-donor
based
Fenton-like
processes,
along
with
active
site
design
considerations
future
challenges.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 24, 2024
Abstract
Hydrogen
peroxide
(H
2
O
)
is
a
high‐value
chemical
widely
used
in
electronics,
textiles,
paper
bleaching,
medical
disinfection,
and
wastewater
treatment.
Traditional
production
methods,
such
as
the
anthraquinone
oxidation
process
direct
synthesis,
require
high
energy
consumption,
involve
risks
from
toxic
substances
explosions.
Researchers
are
now
exploring
photochemical,
electrochemical,
photoelectrochemical
synthesis
methods
to
reduce
use
pollution.
This
review
focuses
on
2‐electron
oxygen
reduction
reaction
(2e
−
ORR)
for
electrochemical
of
H
2,
discusses
how
catalyst
active
sites
influence
adsorption.
Strategies
enhance
selectivity
by
regulating
these
presented.
Catalysts
strong
adsorption
initiate
reactions
weak
*OOH
promote
formation.
The
also
covers
advances
single‐atom
catalysts
(SACs),
multi‐metal‐based
catalysts,
highlights
non‐noble
metal
oxides,
especially
perovskite
their
versatile
structures
potential
2e
ORR.
localized
surface
plasmon
resonance
(LSPR)
effects
performance
discussed.
In
conclusion,
emphasis
placed
optimizing
through
theoretical
experimental
achieve
efficient
selective
production,
aiming
sustainable
commercial
applications.
ACS Catalysis,
Год журнала:
2025,
Номер
unknown, С. 2434 - 2458
Опубликована: Янв. 27, 2025
Subnanometric
supported
metal
atomic
clusters
(SMACs)
composed
of
several
to
tens
surface
atoms
have
attracted
increased
research
interest
in
electrocatalysis.
SMACs
been
known
show
distinct
properties
compared
their
nanoparticles
and
single
atom
counterparts
long
developed
for
functional
improvements.
Tremendous
advancements
made
the
past
few
years,
with
a
notable
trend
more
precise
design
down
an
atomic/molecular
level
investigation
transferring
into
practical
devices,
which
motivates
this
timely
review.
To
begin,
review
presents
classifies
classic
latest
synthetic
strategies
state-of-the-art
characterization
techniques
SMACs.
It
then
outlines
discusses
basic
structure
principles
SMACs,
highlighting
importance
organic
ligands,
size
effect
clusters,
support-cluster
interactions
determining
catalytic
activity
device
stability.
Thereafter,
recent
advances
typical
electrocatalysis
processes
from
laboratory
scale
industrial
are
discussed
obtain
general
understanding
structure–activity
correlations
Current
challenges
future
perspectives
emerging
field
also
discussed,
aiming
at
practicing
SMAC
catalysts
energy
conversion
devices.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 5, 2025
Abstract
Considering
the
exceptional
electronic
regulation
capability,
p‐block
elements
can
be
used
to
regulate
charge
density
of
traditional
transition
metal
catalysts.
In
this
work,
CoGa‐NS‐C
dual‐atom
catalysts
(DACs)
are
successfully
synthesized
through
co‐precipitation
and
post‐annealing
treatment.
The
atomic
dispersion
Co
Ga
synergistic
coordination
structure
CoN
3
S
1
GaN
4
confirmed
by
AC‐TEM,
EXAFS,
XPS.
Due
steric
hindrance
effect
adsorbed
*
OH
on
site
asymmetric
heteroatom
species,
adsorption
energy
OOH
intermediation
neighboring
is
thus
enhanced
greatly,
resulting
in
enhancement
2e‐ORR
pathway.
Besides,
Co─OH
intermediates
detected
situ
FT‐IR
EC‐SHINERS
spectroscopy.
A
high
H
2
O
selectivity
90.3%
a
fast
production
rate
1.12
mol
h
−1
g
reached.
addition,
cathodic
oxygen
reduction
couple
with
sulfion
oxidation
reaction
(SOR)
instead
energy‐intensive
OER
reaction.
coupling
system,
SOR
potential
1.31
V
lower
than
process
at
current
intensity
100
mA.
Both
proposed
DACs
strategy
ORR‐SOR
system
beneficial
for
achieving
efficient
energy‐effective
2e‐ORR.
Angewandte Chemie International Edition,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 11, 2025
Abstract
To
advance
electrochemical
H
2
O
production
and
unravel
catalytic
mechanisms,
the
precise
structural
coordination
of
single‐atomic
M‐N‐C
electrocatalysts
is
urgently
required.
Herein,
Co─N
5
site
with
an
asymmetric
electronic
configuration
constructed
to
boost
two‐electron
oxygen
reduction
reaction
(2e
−
ORR)
compared
symmetric
4
,
effectively
overcoming
trade‐off
between
activity
selectivity
in
production.
Both
experimental
theoretical
analyses
demonstrate
that
breaking
symmetry
sites
promotes
activation
molecules
moderates
adsorption
key
*OOH
intermediate
by
disrupting
linear
scaling
relationship
for
intermediates
adsorption.
This
modulation
enables
efficient
H₂O₂
its
effective
retention
subsequent
applications.
As
a
proof
concept,
achieves
rate
as
high
16.1
mol
g
cat
−1
h
flow
cell,
outperforming
most
recently
reported
counterparts.
Furthermore,
coupling
2e
ORR
oxidation
cellulose‐derived
carbohydrates
accomplishes
formic
acid
yields
(84.1%
from
glucose
62.0%–92.1%
other
substrates),
underpinning
sustainable
electro‐refinery
biomass
valorization
at
ambient
conditions.
By
elucidating
intrinsic
2e⁻
asymmetry
sites,
this
work
paves
way
high‐performance
electrosynthesis.
