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
Catalyst‐Anchored 3D Framework Electrodes: A Breakthrough in Large‐Scale Hydrogen Production
Particle & Particle Systems Characterization,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 20, 2025
Abstract
The
idea
of
grid‐scale
hydrogen
production
by
water
electrolysis
has
been
made
possible
developing
catalyst‐anchored
three‐dimensional
(3D)
foam‐based
electrodes.
Catalytic
performance
in
and
oxygen
evolution
reactions
is
improved
incorporating
catalyst
3D
interlinked
porous
architecture,
which
enhances
electrical
conductivity
speeds
up
the
discharge
gas
bubbles.
detailed
study
on
role‐play
frameworks
energy
generation
explained
this
article.
review
also
focuses
recent
development
utilizing
these
substrates
field
electrochemistry.
Furthermore,
it
imperative
to
enhance
their
compatibility
with
renewable
systems
high‐temperature
for
sustainable
hydrogen.
Therefore,
briefly
explores
innovative
design
self‐supported
framework
electrodes
using
heterostructures
doping
techniques
develop
stable,
durable,
efficient
electrocatalysts.
These
catalysts
aim
provide
near‐zero
overpotential,
high
selectivity,
long‐term
stability
through
electrolysis,
paving
way
commercial‐scale
green
production.
can
emerge
as
a
key
technology
Язык: Английский
Review of Water Splitting Electrolysis over Cobalt Oxide Nanomaterials
ACS Applied Nano Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 10, 2025
Язык: Английский
Tailoring Coordinated Steps with Ni-Substituted Co3o4 Asymmetric Active Unit for Durable and Efficient Acidic Water Oxidation
Опубликована: Янв. 1, 2025
Язык: Английский
Hierarchical Core-Shell Cu@Cu-Ni-Co Alloy Electrocatalyst for Efficient Hydrogen Evolution in Alkaline Media
Energies,
Год журнала:
2025,
Номер
18(6), С. 1515 - 1515
Опубликована: Март 19, 2025
The
development
of
advanced
electrocatalysts
plays
a
pivotal
role
in
enhancing
hydrogen
production
through
water
electrolysis.
In
this
study,
we
employed
two-step
electrodeposition
method
to
fabricate
3D
porous
Cu-Co-Ni
alloy
with
superior
catalytic
properties
and
long-term
stability
for
evolution
reaction
(HER).
resulting
trimetallic
alloy,
Cu@Cu-Ni-Co,
demonstrated
significant
improvements
structural
integrity
performance.
A
comparative
analysis
electrocatalysts,
including
Cu,
Cu@Ni-Co,
revealed
that
Cu@Cu-Ni-Co
achieved
the
best
results
alkaline
media.
Electrochemical
tests
conducted
1.0
M
NaOH
showed
reached
current
density
10
mA
cm−2
at
low
overpotential
125
mV,
along
Tafel
slope
79.1
mV
dec−1.
catalyst
exceptional
durability,
retaining
~95%
its
initial
after
120
h
continuous
operation
high
densities.
Structural
confirmed
enhanced
performance
arises
from
synergistic
interaction
between
Ni,
Co
within
well-integrated
framework.
This
integration
large
electrochemical
active
surface
area
(ECSA)
380
cm2
charge
transfer
resistance
(15.76
Ω),
facilitating
efficient
electron
promoting
HER
activity.
These
findings
position
as
highly
stable
electrocatalyst
conditions.
Язык: Английский
Progress of 3D Graphene-Based Electrocatalytic Oxygen Evolution Reaction Catalysts
Langmuir,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 22, 2025
Electrocatalytic
water
splitting
is
a
clean
and
feasible
method
for
hydrogen
production,
expected
to
become
key
technology
meeting
energy
demands.
Transition
metal-based
nanoparticles,
including
single-atom
catalysts
their
compounds,
are
widely
used
in
electrocatalytic
splitting,
but
they
often
suffer
from
issues
like
easy
agglomeration
poor
conductivity.
The
integration
of
these
nanoparticles
with
three-dimensional
(3D)
graphene
enhances
conductivity
prevents
agglomeration,
while
improving
the
adsorption
desorption
rates
reactants
intermediates
on
catalyst
surface
during
thereby
boosting
efficiency.
This
paper
reviews
preparation
methods
graphene-based
supported
electrocatalysts
applications
oxygen
evolution
reactions
(OERs),
further
discussing
mechanism
by
which
3D
improves
OER
performance.
Язык: Английский
Pristine metal-organic framework electrocatalysts for hydrogen production: Role of electrocatalyst properties in basic media
Cleaner Chemical Engineering,
Год журнала:
2025,
Номер
unknown, С. 100170 - 100170
Опубликована: Апрель 1, 2025
Язык: Английский
Acidic Oxygen Evolution Reaction Activity, Stability, and Durability of Copper and/or Manganese Cobalt Oxide Spinels
ACS Catalysis,
Год журнала:
2025,
Номер
unknown, С. 7956 - 7965
Опубликована: Апрель 29, 2025
Язык: Английский
Advanced In Situ Spectroscopic Techniques for Probing the Acidic Oxygen Evolution Reaction
The Journal of Physical Chemistry C,
Год журнала:
2024,
Номер
128(41), С. 17219 - 17239
Опубликована: Окт. 7, 2024
Proton
exchange
membrane
water
electrolysis
(PEMWE)
is
a
promising
technology
for
sustainable
hydrogen
production.
However,
the
anodic
oxygen
evolution
reaction
(OER)
critical
bottleneck
restricting
power-to-gas
efficiency
and
widespread
application
of
PEMWE
devices
because
harsh
acidic
oxidative
environment
causes
drastic
catalyst
structural
thus
severe
dissolution/corrosion
as
well
performance
degradation.
Currently,
lack
deep
insight
identifying
real
catalytic
sites
during
distinctions
mechanisms
have
hindered
development
highly
active
durable
OER
catalysts
PEMWE.
Therefore,
elucidating
OER-induced
structure
understanding
underlying
are
recognized
foundations
technology.
Against
this
backdrop,
in
situ
spectroscopic
characterization
techniques
serve
powerful
tools
achieving
goal
by
enabling
real-time
monitoring
capture
key
intermediates.
This
Account
summarizes
recent
advances
cutting-edge
spectroscopy
probing
process.
The
fundamentals
device
configurations
these
briefly
introduced,
advantages
each
technique
intermediates
to
unveil
also
been
discussed.
Finally,
challenges,
trends,
prospects
field
presented.
Язык: Английский
Recent Progress in Balancing the Activity, Durability, and Low Ir Content for Ir‐Based Oxygen Evolution Reaction Electrocatalysts in Acidic Media
Small,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 23, 2024
Proton
exchange
membrane
(PEM)
electrolysis
faces
challenges
associated
with
high
overpotential
and
acidic
environments,
which
pose
significant
hurdles
in
developing
highly
active
durable
electrocatalysts
for
the
oxygen
evolution
reaction
(OER).
Ir-based
nanomaterials
are
considered
promising
OER
catalysts
PEM
due
to
their
favorable
intrinsic
activity
stability
under
conditions.
However,
cost
limited
availability
limitations.
Consequently,
numerous
studies
have
emerged
aimed
at
reducing
iridium
content
while
maintaining
durability.
Furthermore,
research
on
mechanism
of
has
garnered
widespread
attention
differing
views
among
researchers.
The
recent
progress
balancing
activity,
durability,
low
is
summarized
this
review,
a
particular
focus
effects
catalyst
morphology,
heteroatom
doping,
substrate
introduction,
novel
structure
development
performance
from
four
perspectives.
Additionally,
mechanistic
discussed,
both
theoretical
experimental
approaches
elucidate
mechanism.
Finally,
perspectives
future
developments
presented.
Язык: Английский