Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 7, 2025
Developing
efficient
and
sustainable
electrocatalysts
for
the
oxygen
evolution
reaction
(OER)
is
crucial
advancing
energy
conversion
storage
technologies.
3d
transition-metal
(oxy)hydroxides
spinel-type
oxides
have
emerged
as
promising
candidates
due
to
their
structural
flexibility,
redox
activity,
abundance
in
earth's
crust.
However,
OER
performance
can
be
changed
dynamically
during
surface
reconstruction
transformation.
Essentially,
multiple
elementary
processes
occur
simultaneously,
whereby
electrocatalyst
surfaces
undergo
substantial
changes
OER.
A
better
understanding
of
these
how
they
affect
electrocatalytic
essential
design.
This
review
aims
critically
assess
processes,
including
oxidation,
amorphization,
transformation,
cation
dissolution,
redeposition,
facet
electrolyte
effects
on
performance.
The
begins
with
an
overview
electrocatalysts'
structure,
couples,
common
issues
associated
electrochemical
measurements
spinels,
followed
by
recent
advancements
involved
challenges
new
perspectives
are
presented
at
last,
potentially
shedding
light
rational
design
next-generation
applications.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(33), P. 17609 - 17615
Published: Jan. 1, 2023
A
PdRu–RuO
2
heterostructure
with
a
well-defined
PdRu
alloy
and
oxygen-vacancy-enriched
RuO
is
constructed
to
intensify
the
hydrogen
spillover
from
Ru
.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(32)
Published: March 25, 2024
Abstract
Understanding
of
fundamental
mechanism
and
kinetics
the
oxygen
evolution
reaction
(OER)
is
pivotal
for
designing
efficient
OER
electrocatalysts
owing
to
its
key
role
in
electrochemical
energy
conversion
devices.
In
past
few
years,
lattice
oxidation
(LOM)
arising
from
anodic
redox
chemistry
has
attracted
significant
attention
as
it
involves
a
direct
O─O
coupling
thus
bypasses
thermodynamic
limitations
traditional
adsorbate
(AEM).
Transition
metal‐based
oxyhydroxides
are
generally
acknowledged
real
catalytic
phase
alkaline
media.
particular,
their
low‐dimensional
layered
structures
offer
sufficient
structural
flexibility
trigger
LOM.
Herein,
comprehensive
overview
provided
recent
advances
anion
LOM‐based
electrocatalysts.
Based
on
analyses
electronic
structure
LOM,
strategy
proposed
activate
Possible
identification
techniques
corroboration
also
reviewed.
addition,
reconstruction
process
induced
by
LOM
focused
importance
multiple
situ/operando
characterizations
highlighted
unveil
chemical
origins
To
conclude,
prospect
remaining
challenges
future
opportunities
presented.
Small,
Journal Year:
2023,
Volume and Issue:
19(49)
Published: Aug. 7, 2023
Abstract
The
precatalyst
undergoes
surface
reconstruction
during
the
oxygen
evolution
reaction
(OER)
process,
and
reconstituted
material
is
one
that
really
plays
a
catalytic
role.
However,
degree
of
seriously
affects
performance.
For
this
reason,
it
important
to
establish
link
between
activity
based
on
deep
understanding
OER
mechanism
for
rational
design
high‐performance
electrocatalysts.
Here,
briefly
introduced,
competition
adsorbate
(AEM)
lattice
oxygen‐mediated
(LOM)
discussed,
several
descriptors
are
summarized.
strategies
realize
controllable
emphatically
including
ion
leaching,
element
doping,
regulating
catalyst
size,
heterogeneous
structure
engineering,
self‐reconstruction.
A
mechanistic
perspective
emphasized
understand
relationship
dynamic
electronic
structure.
Controlled
reconfiguration
can
break
limitation
proportional
brought
by
traditional
AEM
mechanism,
also
switching
LOM
thus
realizing
ultra‐low
overpotential.
This
review
will
provide
some
reference
transition
metal‐based
catalysts
reasonable
development
ideal
ACS Applied Nano Materials,
Journal Year:
2023,
Volume and Issue:
6(3), P. 1631 - 1647
Published: Jan. 31, 2023
Increasing
energy
demand
to
find
everlasting
and
eco-friendly
resources
is
now
mainly
dependent
on
green
hydrogen
production
technology.
Water
electrolysis
has
been
regarded
as
a
clean
route
for
H2
with
zero
carbon
emission,
but
different
bottlenecks
in
the
development
of
electrodes
impeded
its
realization.
Recently,
transition
metal
oxides
(TMO)
have
gained
tremendous
attention
suitable
cathodes
anodes
due
their
sustainability
under
harsh
conditions,
high
redox
features,
maximum
supportive
capability,
easy
modulation
valence
states,
enhanced
electrical
conductivity.
In
this
review,
we
highlighted
role
active
supported
sites
electrochemical
water
splitting.
We
proposed
perspectives
rational
design
TMO-based
electrode
materials,
i.e.,
electronic
state
modulation,
modification
surface
structure
control
aerophobicity
hydrophilicity,
acceleration
charge
mass
transport,
stability
electrocatalyst
environments.
systemically
discussed
insights
into
relationship
among
catalytic
activity,
certain
specified
challenges,
research
directions,
electrocatalysis
OER
HER.
Dalton Transactions,
Journal Year:
2023,
Volume and Issue:
52(24), P. 8466 - 8472
Published: Jan. 1, 2023
Limited
by
single
metal
active
sites
and
low
electrical
conductivity,
designing
nickel-based
metal-organic
framework
(MOF)
materials
with
high
activity
durability
remains
a
challenge.
Here,
novel
class
of
two-dimensional
trimetallic
MOF
nanosheets
plentiful
sites,
rich
defects,
facilitated
mass
electron
transfer
channels
is
developed
as
efficient
electrocatalysts
for
boosting
oxygen
evolution
reaction
(OER).
The
unique
2D
nanosheet
structure
enlarges
the
area;
meanwhile,
organic
ligand
in
can
work
pillar
to
enlarge
interplanar
space
boost
ion
transportation,
synergistic
effect
between
multi-metal
effectively
promote
electrocatalytic
activity.
Interestingly,
after
an
electrochemical
activation
process,
optimized
NiFeZn
yield
abundant
enabling
them
deliver
overpotential
233
mV
at
10
mA
cm-2
much
smaller
Tafel
slope
37.8
dec-1.
More
importantly,
this
method
also
universal
synthesis
NiFe-MOF
family
achieving
outstanding
OER
performance.
These
findings
present
strategy
construction
OER.
