Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 27, 2025
Abstract
Nano‐metal
particles
integrating
with
single‐atom
catalysts
(NMP‐SACs)
have
been
constructed
recently
for
accelerated
alkaline
hydrogen
evolution
reaction
(HER).
However,
the
design
of
NMP‐SACs
primarily
aims
at
separate
adsorption
*OH
and
H*,
while
neglecting
desorption,
causing
blockage
slow
kinetics.
To
address
this,
Mo
2
C
is
introduced
to
(e.g.,
Pt
nanoparticles‐Pt
atom,
n
‐Pt
1
)
by
a
“one‐step
dual‐confinement
pyrolysis”
strategy
1@Mo2C
,
where
precisely
confined
remaining
adjacent
@Mo
C.
Experiments
calculations
demonstrate
that
acting
as
an
“OH‐baton”
helps
overcome
on
accelerating
separation
H*
thus
promoting
spontaneous
water
dissociation.
Thus,
supported
achieves
significantly
lower
overpotential
(
η
10
=
24
mV)
more
than
seven
times
higher
mass
activity
(MA
100
4.33
mA
µg
Pt⁻
in
alkaline.
The
anion‐exchange
membrane
electrolyzer
(AEMWE)
delivers
low
cell
voltage
1.91
V
durable
120
h
electrolysis
1.0
A
cm
−2
.
This
work
proposes
new
insight
introducing
dual‐site
catalyst
system
achieve
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.
Chemical Society Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
This
review
investigates
atomic
site
catalysts
(ASCs)
for
electrochemical
hydrogen
evolution
reaction
(HER),
discussing
their
properties,
types,
performance,
significance,
activity,
selectivity,
stability,
challenges,
and
future
research
directions.
Journal of Materials Chemistry A,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Pyridinic-N,
pyrrolic-N,
and
graphitic-N
fully
exploit
their
distinct
roles,
amplify
collective
influence
maximize
the
synergistic
interaction
between
Pt
NC,
ultimately
leading
to
exceptional
HER
performance
over
a
broad
pH
range.
ACS Catalysis,
Год журнала:
2025,
Номер
unknown, С. 3215 - 3226
Опубликована: Фев. 7, 2025
Structural
transformation
under
in
situ
reaction
conditions
plays
a
vital
role
heterogeneous
catalytic
performance,
especially
caused
by
metal
migration.
However,
the
migration
of
active
components
often
leads
to
irreversible
structural
disruption
at
high
temperatures,
which
could
be
associated
with
deactivation
catalysts.
Here,
we
report
low-melting-point
Zn
migration-mediated
strategy
synthesize
ultrastable
isolated
PtFe3
sites
anchored
MFI
zeolite
for
propane
direct
dehydrogenation.
The
optimized
catalyst
exhibited
superior
specific
activity
36.5
mol
C3H6
molPt–1
s–1
propylene
selectivity
above
99%
550
°C.
Moreover,
dehydrogenation
remained
stable
after
over
400
h
on
stream
low
rate
constant
0.001
h–1
industrial
580
In
characterizations
demonstrated
that
Fe3+
species
were
conducive
rearrangement
electronic
configuration
unoccupied
5d
states
Pt
atoms
form
electron-deficient
sites.
This
afford
insights
into
dynamic
evolution
preparation
processes.
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.
Molecules,
Год журнала:
2024,
Номер
29(18), С. 4304 - 4304
Опубликована: Сен. 11, 2024
Water
electrolysis
has
been
recognized
as
a
promising
technology
that
can
convert
renewable
energy
into
hydrogen
for
storage
and
utilization.
The
superior
activity
low
cost
of
catalysis
are
key
factors
in
promoting
the
industrialization
water
electrolysis.
Single-atom
catalysts
(SACs)
have
attracted
attention
due
to
their
ultra-high
atomic
utilization,
clear
structure,
highest
evolution
reaction
(HER)
performance.
In
addition,
performance
stability
single-atom
(SA)
substrates
crucial,
various
two-dimensional
(2D)
nanomaterial
supports
become
foundations
SA
unique
exposed
surfaces,
diverse
elemental
compositions,
flexible
electronic
structures,
drive
single
atoms
reach
limits.
supported
by
2D
nanomaterials
exhibits
interactions
synergistic
effects,
all
which
need
be
comprehensively
summarized.
This
article
aims
organize
discuss
progress
enhancing
HER,
including
common
widely
used
synthesis
methods,
advanced
characterization
techniques,
different
types
supports,
correlation
between
structural
Finally,
latest
understanding
was
proposed.
