The Single Atom Anchoring Strategy: Rational Design of MXene‐Based Single‐Atom Catalysts for Electrocatalysis
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 13, 2025
Abstract
Single‐atom
catalysts
(SACs)
are
a
class
of
with
low
dosage,
cost,
and
the
presence
metal
atom‐carrier
interactions
high
catalytic
activity,
which
considered
to
possess
significant
potential
in
field
electrocatalysis.
The
most
important
aspect
synthesis
SACs
is
selection
suitable
carriers.
Metal
carbides,
nitrides,
or
carbon‐nitrides
(MXenes)
widely
used
as
new
type
2D
materials
good
electrical
conductivity
tunable
surface
properties.
abundance
functional
groups
vacancy
defects
on
MXenes
an
ideal
anchoring
site
for
single
atoms
therefore
regarded
carrier
single‐atom
loading.
In
this
work,
preparation
method
MXenes,
loading
mode
SACs,
characterization
catalysts,
electrochemical
performance
described
detail,
some
hot
issues
current
research
future
directions
also
summarized.
aim
work
promote
development
MXene‐based
within
realm
With
ongoing
innovation,
these
expected
be
crucial
energy
conversion
storage
solutions.
Язык: Английский
Structural Regulation Strategies of Atomic Cobalt Catalysts for Oxygen Electrocatalysis
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 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.
Язык: Английский
Deactivation Mechanism and Mitigation Strategies of Single‐Atom Site Electrocatalysts
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 14, 2025
Abstract
Single‐atom
site
electrocatalysts
(SACs),
with
maximum
atom
efficiency,
fine‐tuned
coordination
structure,
and
exceptional
reactivity
toward
catalysis,
energy,
environmental
purification,
have
become
the
emerging
frontier
in
recent
decade.
Along
significant
breakthroughs
activity
selectivity,
limited
stability
durability
of
SACs
are
often
underemphasized,
posing
a
grand
challenge
meeting
practical
requirements.
One
pivotal
obstacle
to
construction
highly
stable
is
heavy
reliance
on
empirical
rather
than
rational
design
methods.
A
comprehensive
review
urgently
needed
offer
concise
overview
progress
stability/durability,
encompassing
both
deactivation
mechanism
mitigation
strategies.
Herein,
this
first
critically
summarizes
degradation
induction
factors
at
atomic‐,
meso‐
nanoscale,
mainly
based
but
not
oxygen
reduction
reaction.
Subsequently,
potential
stability/durability
improvement
strategies
by
tuning
catalyst
composition,
morphology
surface
delineated,
including
robust
substrate
metal‐support
interaction,
optimization
active
stability,
fabrication
porosity
modification.
Finally,
challenges
prospects
for
discussed.
This
facilitates
fundamental
understanding
provides
efficient
principles
aimed
overcoming
difficulties
beyond.
Язык: Английский
Structure, synthesis and application of carbon based double single atom catalysts
Desalination,
Год журнала:
2025,
Номер
606, С. 118762 - 118762
Опубликована: Март 3, 2025
Язык: Английский
Design principles of non-noble metal catalysts for high-performance rechargeable Zn-air batteries
Energy storage materials,
Год журнала:
2025,
Номер
unknown, С. 104155 - 104155
Опубликована: Март 1, 2025
Язык: Английский
Advances in the preparation and application of nanoconfined metal catalysts composed of porous materials
Molecular Catalysis,
Год журнала:
2025,
Номер
582, С. 115175 - 115175
Опубликована: Май 3, 2025
Язык: Английский
Pyrrole Nitrogen Coordination Activates Intrinsically Catalytically Inert Mo for Oxygen Reduction Reaction
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 6, 2025
Electronic
structure
modulation
is
a
promising
approach
to
enhance
the
properties
of
intrinsically
inert
metals
in
an
electrocatalytic
oxygen
reduction
reaction.
Herein,
molybdenum
(Mo)
single
atom
(Mo
SAs)
catalyst
with
pyrrole-rich
nitrogen/oxygen
double
coordination
has
been
designed
and
synthesized
(defined
as
Mo
SAs/N-C).
The
pyrrole-nitrogen
(Pyrr-N)
was
shown
effectively
regulate
metal-centered
electronic
Mo.
This
strategy
enables
SAs/N-C
exhibit
superior
catalytic
activity
enhanced
4e-
transfer
selectivity.
electrochemical
performance
evaluations
revealed
that
exceptional
durability
(with
only
2.0
mV
half-wave
potential
decay
after
5000
cycles)
resistance
methanol
toxicity,
outperforming
commercial
Pt/C
(20%).
Notably,
air-cathode
for
zinc-air
batteries,
achieved
peak
power
density
242
mW
cm-2.
Combining
experimental
results
functional
theory
calculations,
it
found
Pyrr-N
modulates
adsorption
OOH*
intermediates
on
atoms,
promoting
pathway
significantly
enhancing
ORR.
study
provides
valuable
insights
into
role
improving
single-atom
catalysts.
Язык: Английский