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,
Год журнала:
2024,
Номер
12(30), С. 18832 - 18865
Опубликована: Янв. 1, 2024
This
review
focuses
mainly
on
the
overall
facilitating
effect
of
heterostructures
OER
process.
The
fabrication
heterostructured
electrocatalysts
and
relationship
between
their
structures
electrocatalytic
properties
are
discussed.
Abstract
Electrocatalytic
water
splitting
shows
great
potential
for
producing
clean
and
green
hydrogen,
but
it
is
hindered
by
slow
reaction
kinetics.
Advanced
electrocatalysts
are
needed
to
lower
the
energy
barriers.
The
establishment
of
built‐in
electric
fields
(BIEF)
in
heterointerfaces
has
been
found
be
beneficial
speeding
up
electron
transfer,
increasing
electrical
conductivity,
adjusting
local
environment,
optimizing
chemisorption
with
intermediates.
Engineering
modifying
BIEF
heterojunctions
offer
significant
opportunities
enhance
electronic
properties
catalysts,
thus
improving
This
comprehensive
review
focuses
on
latest
advances
engineering
heterojunction
catalysts
efficient
electrolysis.
It
highlights
fundamentals,
engineering,
modification,
characterization,
application
electrocatalytic
splitting.
also
discusses
challenges
future
prospects
engineering.
Overall,
this
provides
a
thorough
examination
next
generation
electrolysis
devices.
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.
