Nearly 100% CO Selectivity for CO2 Reduction via Synergistic Engineering of Heteronuclear CuCo Dual Atoms
Xiaoxiao Zhu,
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Xin An,
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Yuan Cong
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et al.
ACS Applied Materials & Interfaces,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 3, 2025
Monatomic
catalysts
demonstrate
exceptional
activity
in
CO2
hydrogenation
for
mitigating
the
greenhouse
effect
and
achieving
carbon
neutrality
goals.
However,
single-atom
are
limited
by
having
only
one
type
of
active
site,
resulting
unsatisfactory
selectivity.
In
this
work,
a
heteronuclear
dual-atom
catalyst
(CuCoDA)
is
successfully
synthesized
using
dual-anchoring
method
applied
to
hydrogenation.
The
synergistic
between
Cu
Co
atoms
results
remarkable
CO
selectivity
99.1%,
with
conversion
rate
28.1%.
experimental
theoretical
calculations
that
incorporation
into
monatomic
enhances
adsorption
H2
on
CuCoDA
surface
throughout
reaction,
thereby
significantly
promoting
conversion.
Simultaneously,
cooperative
minimizes
CO*
inhibits
formation
*CHO
(a
key
intermediate
methane
generation),
which
suppresses
further
CO2.
This
an
extremely
high
CO.
study
provides
general
strategy
constructing
dual-heteronuclear
incorporating
multiple
metal
species
highlights
critical
importance
interactions
adjacent
single
development
advanced
catalysts.
Language: Английский
Electron delocalization engineering via hierarchical modulation in single-atom catalysts for highly efficient electrochemical CO2 reduction
Xu Han,
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Hong Liu,
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Pengfei Cao
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et al.
Chemical Engineering Journal,
Journal Year:
2025,
Volume and Issue:
unknown, P. 160634 - 160634
Published: Feb. 1, 2025
Language: Английский
Potential‐Driven Dynamic Spring‐Effect of Pd─Cu Dual‐Atoms Empowered Stability and Activity for Electrocatalytic Reduction
Pei‐Hua Li,
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Yuan‐Fan Yang,
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Zong‐Yin Song
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et al.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 26, 2025
Abstract
Atomic‐level
catalysts
are
extensively
applied
in
heterogeneous
catalysis
fields.
However,
it
is
a
general
but
ineluctable
issue
that
active
metal
atoms
may
migrate,
aggregate,
deactivate,
or
leach
during
reaction
processes,
suppressing
their
catalytic
performances.
Designing
superior
intrinsic‐structural
stability
of
atomic‐level
with
high
activity
and
revealing
dynamic
structure
evolution
vital
for
wide
applications
complex
reactions
harsh
conditions.
Herein,
high‐stable
Pd─Cu
dual‐atom
PdN
3
─CuN
coordination
engineered
via
strong
chelation
Cu
2+
‐ions
electron
pairs
from
palladium‐source,
achieving
the
highest
turnover
frequency
under
lowest
overpotential
Cr(VI)
electrocatalytic
reduction
detection
strong‐acid
electrolytes.
In
situ
X‐ray
absorption
fine
spectra
reveal
“spring‐effect”
Cu─Pd
Cu─N
bonds
reversibly
stretched
potential
changes
can
be
recovered
at
0.6
V
regeneration.
The
modulated
electron‐orbit
coupling
effect
prevents
Cu‐atoms
aggregating
as
metallic
nanoparticles.
dual‐atoms
interact
two
O
H
2
CrO
4
,
forming
stable
bridge
configurations
transferring
electrons
to
promote
Cr─O
bond
dissociation,
which
prominently
decreases
energy
barriers.
This
work
provides
feasible
route
boost
robustness
single‐atoms
easily
affected
by
conditions
sustainable
applications.
Language: Английский
Recent Advances in MOF−Based Dual−Atom Catalysts for CO2 Reduction
Chemistry - A European Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 26, 2025
Abstract
In
recent
years,
the
development
of
efficient
catalysts
for
photo−/electro−catalytic
CO
2
reduction
reaction
(CO
RR)
has
become
a
major
research
focus
due
to
growing
environmental
concerns
and
energy
demands.
Dual−atom
(DACs),
composed
two
metal
atoms
with
suitable
metal−metal
distance
integrated
into
supports,
have
shown
great
promise
in
enhancing
catalytic
performance
via
dual−metal
synergistic
catalysis
(DMSC)
effect.
This
review
highlights
advancements
Metal−organic
framework
(MOF)−based
DACs,
which
combine
high
atomic
efficiency
DACs
tunable
defined
structures
loadings.
this
review,
we
summarized
developments
on
synthesis
strategies
MOF−based
their
applications
RR,
focusing
role
DMSC
effect
improving
activity,
stability,
selectivity.
Additionally,
also
discuss
influence
local
electronic
structure,
coordination
environment,
atom
interactions
performance.
aims
provide
comprehensive
understanding
MOF
−
based
offers
insights
future
potential
sustainable
conversion.
Language: Английский