Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Июнь 2, 2025
Abstract
Electrocatalytic
water
splitting
stands
as
a
pivotal
technology
for
the
large‐scale
production
of
high‐purity
hydrogen,
with
central
challenge
residing
in
development
efficient,
stable,
and
cost‐effective
hydrogen
evolution
reaction
(HER)
catalysts.
This
study
proposes
simple,
room‐temperature
stirring
method
(2
h)
developed
to
anchor
[RuCl]
2+
onto
carboxyl‐functionalized
carbon
nanotubes
(CNT‐COOH).
During
(HER),
partial
Cl⁻
desorption
under
reductive
potentials
triggers
situ
formation
Cl‐modified
Ru
(100)
nanoparticles.
Localized
coordination
induces
redistribution
surface
electronic
states
mitigation
site‐blocking
effects,
activating
traditionally
inert
facets
through
optimization
states,
thereby
surpassing
activity
conventionally
synthesized
Ru/CNT(101)
(prepared
via
pyrolysis).
The
self‐optimized
Ru/CNT(Cl‐100)
demonstrated
exceptional
mass
(6.47
A
mg
⁻¹
at
η
=
50
mV)
sustained
stability,
outperforming
most
reported
Ru‐based
work
highlights
ligand‐mediated
strategy
unlock
latent
catalytic
potential
low‐index
facets,
providing
scalable
pathway
high‐performance
HER
systems.
Chemical Science,
Год журнала:
2025,
Номер
16(10), С. 4402 - 4411
Опубликована: Янв. 1, 2025
Single-atom
catalysts
(SACs)
have
attracted
considerable
interest
in
the
field
of
electrocatalysis
due
to
their
high
efficiency
metal
utilization
and
catalytic
activity.
However,
traditional
methods
SACs
fabrication
are
often
complex
time-consuming.
Herein,
F-Ru@TiO
x
N
y
was
synthesized
using
a
straightforward
universal
approach
via
situ
surface
etching
heteroatoms
immobilization
on
vacancies-rich
hierarchical
TiO
nanorods
array.
The
fluorine
ion-etched
could
produce
abundant
oxygen
vacancies
F-Ti/F-C
bonds,
which
capture
stabilize
Ru
by
strong
host-guest
electronic
interactions.
Due
synergistic
effect
anchoring
F-C
bonds-assisted
stabilization
single
atoms,
revealed
excellent
electrocatalytic
hydrogen
evolution
performance,
low
overpotential
20.8
mV
at
10
mA
cm-2,
Tafel
slope
59.9
dec-1
robust
stability
100
cm-2
over
48
h.
Furthermore,
this
strategy
be
applicable
various
heterometals
(Pd,
Ir,
Pt),
also
exhibited
dispersity
HER
activity/stability.
This
method
is
simple,
easy-scalable
versatile,
showcasing
significant
potential
for
electrocatalysts
design
promising
application
prospects
energy
conversion.
Molecules,
Год журнала:
2025,
Номер
30(5), С. 1046 - 1046
Опубликована: Фев. 25, 2025
The
electrocatalysts
of
heteroatom-doped
non-precious
metal
oxide
materials
are
great
significance
for
efficient
and
low-cost
electrochemical
water-splitting
systems.
Herein,
an
innovative
Fe-doped
Co3O4
nanoflake
(Fe-Co3O4/NF)
on
nickel
foam
has
been
developed,
which
exhibits
excellent
electrocatalytic
activity
both
hydrogen
evolution
reactions
(HERs)
oxygen
(OERs).
Benefiting
from
the
synergy
charge
redistribution
d-band
center
shift
caused
by
doping
engineering,
as-obtained
Fe-Co3O4/NF
shows
HER
(η10
=
196
mV)
OER
290
activities
with
low
Tafel
slopes
(109
mV
dec-1
49
OER,
respectively)
stability.
This
work
provides
effective
method
designing
synthesizing
bifunctional
high
stability
hybrids
HER/OER.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 10, 2025
Abstract
Currently,
atomically
dispersed
catalysts
(ADCs),
including
single‐atom
(SACs),
dual‐atom
(DACs),
and
triple‐atom
(TACs),
have
become
the
hot
topic
in
heterogeneous
catalysis
field
since
they
exceptional
atomic
efficiency
catalytic
performance
various
reactions.
In
this
review,
recent
advances
ADCs
for
overall
water
splitting
are
summarized,
SACs,
DACs,
TACs.
First,
mechanisms
of
HER
OER
reactions
electrocatalysis,
photocatalysis,
thermocatalysis
presented.
Second,
(including
OER)
on
with
different
supports
systematically
reviewed.
Third,
new
novel
proposed
to
design
splitting,
tandem
catalysts,
frustrated
Lewis
pairs
(FLP),
SAC+FLP,
so
on.
Finally,
prospective
a
summary
as
well
challenges
opportunities
outlined,
which
provide
insights
into
future
development
high‐performance
clean
sustainable
energy
production.
Highly
efficient
and
stable
oxygen
evolution
reaction
(OER)
electrocatalysts
are
essential
for
electrochemical
water
splitting.
Among
non-noble
metal-based
catalysts,
metal-organic
frameworks
(MOFs)
have
recently
emerged
as
particularly
promising
candidates
due
to
their
exceptional
surface
areas,
hierarchical
porous
structures,
tunable
morphologies
compositions.
The
rational
regulation
of
the
morphology
electronic
structure
pristine
MOFs
is
considered
a
critical
pathway
enhancing
active
sites
structural
stability,
thereby
significantly
boosting
OER
catalytic
performance.
This
review
systematically
presents
recent
advancements
in
modulating
via
heterogeneous
metal
doping,
ligand
substitution,
hybrid
composite
construction.
With
particular
emphasis
on
synthetic
methods,
modification
mechanisms,
properties
MOFs,
we
analyze
fundamental
relationships
between
modifications
electrocatalytic
Through
systematic
analysis
existing
research
achievements,
this
provides
holistic
assessment
current
state-of-the-art
developments,
identifies
challenges,
proposes
future
directions
with
practical
implications
electrocatalyst
design.
