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.
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: Feb. 16, 2023
The
electrocatalytic
water
splitting
technology
can
generate
high-purity
hydrogen
without
emitting
carbon
dioxide,
which
is
in
favor
of
relieving
environmental
pollution
and
energy
crisis
achieving
neutrality.
Electrocatalysts
effectively
reduce
the
reaction
barrier
increase
efficiency.
Facet
engineering
considered
as
a
promising
strategy
controlling
ratio
desired
crystal
planes
on
surface.
Owing
to
anisotropy,
with
different
orientations
usually
feature
facet-dependent
physical
chemical
properties,
leading
differences
adsorption
energies
oxygen
or
intermediates,
thus
exhibit
varied
activity
toward
evolution
(HER)
(OER).
In
this
review,
brief
introduction
basic
concepts,
fundamental
understanding
mechanisms
well
key
evaluating
parameters
for
both
HER
OER
are
provided.
formation
facets
comprehensively
overviewed
aiming
give
scientific
theory
guides
realize
dominant
planes.
Subsequently,
three
strategies
selective
capping
agent,
etching
coordination
modulation
tune
summarized.
Then,
we
present
an
overview
significant
contributions
facet-engineered
catalysts
HER,
OER,
overall
splitting.
particular,
highlight
that
density
functional
calculations
play
indispensable
role
unveiling
structure–activity
correlation
between
plane
catalytic
activity.
Finally,
remaining
challenges
provided
future
prospects
designing
advanced
electrocatalysts
discussed.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(7)
Published: Sept. 14, 2023
Hydrogen
production
from
electrolytic
water
electrolysis
is
considered
a
viable
method
for
hydrogen
with
significant
social
value
due
to
its
clean
and
pollution-free
nature,
high
efficiency,
purity,
but
the
anode
oxygen
evolution
reaction
(OER)
process
complex
kinetically
slow.
Single-atom
catalysts
(SACs)
100%
atom
utilization
homogeneous
active
sites
often
exhibit
catalytic
activity
are
expected
be
extensively
applied.
The
performance
of
OER
can
further
improved
by
precise
regulation
structure
through
electronic
effects,
coordination
environment,
heteroatomic
doping,
so
on.
In
this
review,
mechanisms
under
different
conditions
introduced,
latest
research
progress
SACs
in
field
systematically
summarized,
then
effects
various
structural
strategies
on
discussed,
principles
ideas
design
proposed.
end,
outstanding
issues
current
challenges
summarized.
Nanoscale Horizons,
Journal Year:
2023,
Volume and Issue:
8(4), P. 441 - 452
Published: Jan. 1, 2023
A
critical
review
of
built-in
electric
fields
for
the
applications
in
electrocatalytic
reactions
is
organized
by
focusing
on
fundamental
concepts,
modification
strategies,
and
positive
influences
promotion
catalytic
performance.
Inorganic Chemistry,
Journal Year:
2023,
Volume and Issue:
62(28), P. 11271 - 11277
Published: June 29, 2023
The
introduction
of
high-entropy
and
high
specific
surface
area
into
Prussian
blue
analogues
(PBAs)
has
yet
to
create
interest
in
the
field
electrocatalytic
small-molecule
oxidation
reactions.
Herein,
we
synthesize
a
novel
class
(HE)
PBAs
with
via
simple
NH3·H2O-etching
strategy
systematically
investigate
performance
HE-PBA
toward
water,
ethanol,
urea
Importantly,
NH3·H2O-etched
(denoted
as
HE-PBA-e)
demonstrated
enhanced
compared
pristine
HE-PBA,
reaching
10
mA
cm-2
potentials
1.56,
1.41,
1.37
V
for
oxygen
evolution
reaction
(OER),
ethanol
(EOR),
(UOR),
respectively.
Deep
characterizations
suggest
that
NH3·H2O
etching
treatment
not
only
creates
rich
nanopores
enlarge
boosts
mass
transport
electron
transfer
but
also
facilitates
formation
high-valence
metal
oxides
improve
intrinsic
activity.
This
demonstration
how
increasing
state
metals
will
serve
governing
principle
rational
design
more
advanced
HE-PBAs
electrooxidation
small
molecules.
Inorganic Chemistry Frontiers,
Journal Year:
2023,
Volume and Issue:
10(7), P. 2067 - 2074
Published: Jan. 1, 2023
A
sunflower-like
Ir,
Fe-codoped
Co(OH)
2
catalyst
assembled
by
nanosheets
is
designed
for
boosting
electrocatalytic
OER,
where
dual-cation
doping
can
significantly
decrease
the
energy
barrier
of
rate-determining
step
OER.
Inorganic Chemistry,
Journal Year:
2023,
Volume and Issue:
62(4), P. 1659 - 1666
Published: Jan. 17, 2023
Rational
design
of
fast
and
sensitive
determination
nitrite
(NO2-)
from
a
complicated
actual
sample
overtakes
crucial
role
in
constructing
high-efficiency
sensing
platform.
Herein,
visual
NO2-
platform
with
outstanding
selectivity,
sensitivity,
stability
based
on
surface
plasmon
resonance
(SPR)-enhanced
oxidase-like
activity
has
been
proposed.
Benefiting
the
intrinsic
photocatalytic
limited
light
penetration
ZnS,
ZnS
decorated
Ag
nanowires
(Ag@ZnS)
is
determined.
It
demonstrated
that
electrons
are
generated
efficiently
then
transferred
into
hot
help
localized
SPR
excitation,
thus
greatly
oxidating
colorless
3,3',5,5'-tetramethylbenzidine
(TMB)
to
produce
dark
blue
oxidized
TMB
(oxTMB).
When
added
reaction
system,
oxTMB
will
selectively
react
generate
diazotized
oxTMB,
leading
color
change
green
subsequently
yellow.
Owing
specific
recognition
between
recovery
catalytic
induced
an
enhanced
colorimetric
test
wider
linear
range
for
determination,
ultralow
detection
limit
0.1
μM,
excellent
practicability
application
real
samples.
This
plasmon-enhanced
not
only
provides
smart
approach
realize
assay
high
sensitivity
simplicity
but
also
modulates
activities.