Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
manuscript
comprehensively
reviews
the
recent
advancements
in
Cu-based
atomic
site
catalysts
NO
3
RR,
following
a
sequential
order
with
six
sections:
Introduction,
Mechanism,
SACs,
SAAs,
DACs,
and
Perspectives.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(21)
Published: March 19, 2024
Abstract
The
generation
of
green
hydrogen
by
water
splitting
is
identified
as
a
key
strategic
energy
technology,
and
proton
exchange
membrane
electrolysis
(PEMWE)
one
the
desirable
technologies
for
converting
renewable
sources
into
hydrogen.
However,
harsh
anode
environment
PEMWE
oxygen
evolution
reaction
(OER)
involving
four‐electron
transfer
result
in
large
overpotential,
which
limits
overall
efficiency
production,
thus
efficient
electrocatalysts
are
needed
to
overcome
high
overpotential
slow
kinetic
process.
In
recent
years,
noble
metal‐based
(e.g.,
Ru/Ir‐based
metal/oxide
electrocatalysts)
have
received
much
attention
due
their
unique
catalytic
properties,
already
become
dominant
acidic
OER
process
applied
commercial
devices.
these
still
face
thorny
problem
conflicting
performance
cost.
this
review,
first,
metal
briefly
classified
according
forms
existence,
mechanisms
outlined.
Then,
focus
on
summarizing
improvement
strategies
with
respect
activity
stability
over
years.
Finally,
challenges
development
prospects
discussed.
Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
145(28), P. 15528 - 15537
Published: July 10, 2023
Demetalation,
caused
by
the
electrochemical
dissolution
of
metal
atoms,
poses
a
significant
challenge
to
practical
application
single-atom
catalytic
sites
(SACSs)
in
proton
exchange
membrane-based
energy
technologies.
One
promising
approach
inhibit
SACS
demetalation
is
use
metallic
particles
interact
with
SACSs.
However,
mechanism
underlying
this
stabilization
remains
unclear.
In
study,
we
propose
and
validate
unified
which
can
Fe
Metal
act
as
electron
donors,
decreasing
oxidation
state
increasing
density
at
FeN4
position,
thereby
strengthening
Fe-N
bond,
inhibiting
dissolution.
Different
types,
forms,
contents
increase
bond
strength
varying
extents.
A
linear
correlation
between
state,
strength,
amount
supports
mechanism.
Our
screening
particle-assisted
led
78%
reduction
dissolution,
enabling
continuous
operation
for
up
430
h
fuel
cell.
These
findings
contribute
development
stable
SACSs
applications.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Feb. 28, 2024
Abstract
The
development
of
facile
tailoring
approach
to
adjust
the
intrinsic
activity
and
stability
atomically-precise
metal
nanoclusters
catalysts
is
great
interest
but
remians
challenging.
Herein,
well-defined
Au
8
modified
by
single-atom
sites
are
rationally
synthesized
via
a
co-eletropolymerization
strategy,
in
which
uniformly
dispersed
nanocluster
co-entrenched
on
poly-carbazole
matrix.
Systematic
characterization
theoretical
modeling
reveal
that
functionalizing
single-atoms
enable
altering
electronic
structures
clusters,
amplifies
their
electrocatalytic
reduction
CO
2
~18.07
fold
compared
isolated
clusters.
rearrangements
structure
not
only
strengthen
adsorption
key
intermediates
*COOH,
also
establish
favorable
reaction
pathway
for
reaction.
Moreover,
this
strategy
fixing
cross-linked
polymer
networks
efficiently
deduce
performance
deactivation
caused
agglomeration
during
catalytic
process.
This
work
contribute
explore
improvement
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: July 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.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Feb. 29, 2024
Abstract
The
exploration
of
sustainable
energy
utilization
requires
the
implementation
advanced
electrochemical
devices
for
efficient
conversion
and
storage,
which
are
enabled
by
usage
cost-effective,
high-performance
electrocatalysts.
Currently,
heterogeneous
atomically
dispersed
catalysts
considered
as
potential
candidates
a
wide
range
applications.
Compared
to
conventional
catalysts,
metal
atoms
in
carbon-based
have
more
unsaturated
coordination
sites,
quantum
size
effect,
strong
metal–support
interactions,
resulting
exceptional
catalytic
activity.
Of
these,
dual-atomic
(DACs)
attracted
extensive
attention
due
additional
synergistic
effect
between
two
adjacent
atoms.
DACs
advantages
full
active
site
exposure,
high
selectivity,
theoretical
100%
atom
utilization,
ability
break
scaling
relationship
adsorption
free
on
sites.
In
this
review,
we
summarize
recent
research
advancement
DACs,
includes
(1)
comprehensive
understanding
synergy
atomic
pairs;
(2)
synthesis
DACs;
(3)
characterization
methods,
especially
aberration-corrected
scanning
transmission
electron
microscopy
synchrotron
spectroscopy;
(4)
energy-related
last
part
focuses
great
catalysis
small
molecules,
such
oxygen
reduction
reaction,
CO
2
hydrogen
evolution
N
reaction.
future
challenges
opportunities
also
raised
prospective
section.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(4), P. 2369 - 2379
Published: Jan. 31, 2024
Fabricating
highly
active
catalysts
with
fully
exposed
metal
atoms
is
necessary
to
greatly
enhance
the
catalytic
efficiency
of
selective
hydrogenation.
Here,
we
precisely
constructed
a
carbon-nitride-nanosheet-supported
Pd
atomically
dispersed
catalyst
(PdSA+C/g-C3N4)
by
simple
low-temperature
impregnation
strategy.
Importantly,
obtained
PdSA+C/g-C3N4
includes
Pd–N3
single
and
subnanoclusters
atomic-layer
thickness.
Moreover,
exhibits
100%
cinnamaldehyde
(CAL)
conversion
rate
97.3%
phenylpropanal
selectivity
during
CAL
hydrogenation,
which
much
better
than
most
reported
catalysts.
Meanwhile,
turnover
frequency
9.19
s–1,
about
12
times
higher
that
single-atom
Further
mechanism
studies
show
synergistic
effect
between
in
key
improve
hydrogenation
activity
CAL.
Specifically,
hydrogen
preferentially
adsorbs
dissociates
on
nanoclusters,
while
atoms.
After
that,
could
overflow
from
clusters
thus
improving
reaction
kinetics.
This
work
develops
method
prepare
multimetal
sites
provides
an
insight
into
reaction.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(44)
Published: Sept. 16, 2024
Abstract
Oxygen
reduction
and
evolution
reactions
are
two
key
processes
in
electrochemical
energy
conversion
technologies.
Synthesis
of
nonprecious
metal,
carbon‐based
electrocatalysts
with
high
oxygen
bifunctional
activity
stability
is
a
crucial,
yet
challenging
step
to
achieving
conversion.
Here,
an
approach
address
this
issue:
synthesis
atomically
dispersed
Fe
electrocatalyst
(Fe
1
/NCP)
over
porous,
defect‐containing
nitrogen‐doped
carbon
support,
described.
Through
incorporation
phosphorus
atom
into
the
second
coordination
sphere
iron,
durability
boundaries
catalyst
pushed
unprecedented
level
alkaline
environments,
such
as
those
found
zinc‐air
battery.
The
rationale
delicately
incorporate
P
heteroatoms
defects
close
central
metal
sites
(FeN
4
‐OH)
order
break
local
symmetry
electronic
distribution.
This
enables
suitable
binding
strength
oxygenated
intermediates.
In
situ
characterizations
theoretical
studies
demonstrate
that
these
synergetic
interactions
responsible
for
stability.
These
intrinsic
advantages
/NCP
enable
potential
gap
mere
0.65
V
power
density
263.8
mW
cm
−2
when
incorporated
findings
underscore
importance
design
principles
access
high‐performance
green
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 3, 2025
Abstract
Oxygen
electrocatalysis
is
a
core
reaction
in
renewable
energy
devices,
greatly
promoting
the
transformation
and
upgrading
of
structure.
Nonetheless,
performance
conversion
devices
hindered
by
large
overpotential
slow
kinetics
oxygen
electrocatalytic
reactions.
Recently,
single‐atom
catalysts
(SACs)
have
emerged
as
promising
contenders
field
because
their
exceptional
metal
atom
utilization,
distinctive
coordination
environment,
adjustable
electronic
properties.
This
review
presents
latest
advancements
design
Co‐based
SACs
for
electrocatalysis.
First,
OER
ORR
mechanisms
are
introduced.
Subsequently,
strategies
regulating
structure
summarized
three
aspects,
including
centers,
support
carriers.
A
particular
emphasis
given
to
relationship
between
properties
catalysts.
Afterward,
applications
explored.
Ultimately,
challenges
prospects
prospected.
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(38)
Published: Aug. 7, 2023
Abstract
The
performance
optimization
of
single‐atom
catalysts
(SACs)
is
important
but
remains
challenging.
Taking
advantage
accompanying
in
situ
formation
atomic
clusters
(ACs)/nanoparticles
(NPs)
during
the
preparation
SACs
can
be
a
promising
solution.
coupled
ACs/NPs
and
single
atoms
(SAs)
highly
efficient
catalyzing
various
reactions
(e.g.,
oxygen
reduction
reaction
(ORR),
hydrogen
evolution
(HER),
CO
2
(CO
RR),
N
oxidation
(NOR),
etc),
showing
superior
activity,
selectivity,
stability.
mechanisms
mainly
categorized
as
intensified
SAs,
SAs
ACs/NPs,
proceeding
on
both
SAs.
proposed
may
applicable
to
rationalize
excellent
consisting
In
end,
existing
issues
further
development
directions
are
put
forward.
This
review
expected
simultaneously
contribute
application
in‐depth
understanding
catalysis
(SAC).