Carbon Energy,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 2, 2024
Abstract
Crystalline
perovskite
oxides
are
regarded
as
promising
electrocatalysts
for
water
electrolysis,
particularly
anodic
oxygen
evolution
reactions,
owing
to
their
low
cost
and
high
intrinsic
activity.
Perovskite
with
noncrystalline
or
amorphous
characteristics
also
exhibit
electrocatalytic
performance
toward
electrochemical
splitting.
In
this
review,
a
fundamental
understanding
of
the
advantages
crystalline,
noncrystalline,
is
presented.
Subsequently,
recent
progress
in
development
advanced
electrolysis
by
engineering
breaking
crystallinity
reviewed,
special
focus
on
underlying
structure–activity
relationships.
Finally,
remaining
challenges
unsolved
issues
presented,
an
outlook
briefly
proposed
future
exploration
next‐generation
water‐splitting
based
oxides.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(7), P. 3694 - 3812
Published: March 22, 2024
Electrocatalytic
water
splitting
driven
by
renewable
electricity
has
been
recognized
as
a
promising
approach
for
green
hydrogen
production.
Different
from
conventional
strategies
in
developing
electrocatalysts
the
two
half-reactions
of
(e.g.,
and
oxygen
evolution
reactions,
HER
OER)
separately,
there
growing
interest
designing
bifunctional
electrocatalysts,
which
are
able
to
catalyze
both
OER.
In
addition,
considering
high
overpotentials
required
OER
while
limited
value
produced
oxygen,
is
another
rapidly
exploring
alternative
oxidation
reactions
replace
hybrid
toward
energy-efficient
generation.
This
Review
begins
with
an
introduction
on
fundamental
aspects
splitting,
followed
thorough
discussion
various
physicochemical
characterization
techniques
that
frequently
employed
probing
active
sites,
emphasis
reconstruction
during
redox
electrolysis.
The
design,
synthesis,
performance
diverse
based
noble
metals,
nonprecious
metal-free
nanocarbons,
overall
acidic
alkaline
electrolytes,
thoroughly
summarized
compared.
Next,
their
application
also
presented,
wherein
anodic
include
sacrificing
agents
oxidation,
pollutants
oxidative
degradation,
organics
upgrading.
Finally,
concise
statement
current
challenges
future
opportunities
presented
hope
guiding
endeavors
quest
sustainable
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: April 5, 2024
Abstract
Seawater
electroreduction
is
attractive
for
future
H
2
production
and
intermittent
energy
storage,
which
has
been
hindered
by
aggressive
Mg
2+
/Ca
precipitation
at
cathodes
consequent
poor
stability.
Here
we
present
a
vital
microscopic
bubble/precipitate
traffic
system
(MBPTS)
constructing
honeycomb-type
3D
robust
anti-precipitation
seawater
reduction
(SR),
massively/uniformly
release
small-sized
bubbles
to
almost
every
corner
of
the
cathode
repel
precipitates
without
break.
Noticeably,
optimal
with
built-in
MBPTS
not
only
enables
state-of-the-art
alkaline
SR
performance
(1000-h
stable
operation
–1
A
cm
−2
)
but
also
highly
specialized
in
catalytically
splitting
natural
into
greatest
ability.
Low
amounts
after
prolonged
tests
under
large
current
densities
reflect
genuine
efficacy
our
MBPTS.
Additionally,
flow-type
electrolyzer
based
on
stably
functions
industrially-relevant
500
mA
150
h
while
unwaveringly
sustaining
near-100%
Faradic
efficiency.
Note
that
estimated
price
(~1.8
US$/kg
H2
even
cheaper
than
US
Department
Energy’s
goal
(2
).
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: June 11, 2024
Abstract
Precisely
modulating
the
Ru-O
covalency
in
RuO
x
for
enhanced
stability
proton
exchange
membrane
water
electrolysis
is
highly
desired.
However,
transition
metals
with
d
-valence
electrons,
which
were
doped
into
or
alloyed
,
are
inherently
susceptible
to
influence
of
coordination
environment,
making
it
challenging
modulate
a
precise
and
continuous
manner.
Here,
we
first
deduce
that
introduction
lanthanide
gradually
changing
electronic
configurations
can
continuously
owing
shielding
effect
5
s
/5
p
orbitals.
Theoretical
calculations
confirm
durability
Ln-RuO
following
volcanic
trend
as
function
covalency.
Among
various
Er-RuO
identified
optimal
catalyst
possesses
35.5
times
higher
than
2
.
Particularly,
-based
device
requires
only
1.837
V
reach
3
A
cm
−2
shows
long-term
at
500
mA
100
h
degradation
rate
mere
37
μV
−1
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(5), P. 3298 - 3307
Published: Feb. 15, 2024
The
discovery
of
acid-stable
and
highly
active
electrocatalysts
for
the
oxygen
evolution
reaction
(OER)
is
crucial
in
quest
high-performance
water-splitting
technologies.
Herein,
a
heterostructured
RuO2–CeO2
electrocatalyst
was
constructed
by
using
lattice-matching
strategy.
interfacial
Ru–O–Ce
bridge
structure
provided
channel
electron
transfer
between
Ru
Ce,
creating
lattice
stress
that
distorts
local
RuO2.
resulting
catalyst
exhibited
attractive
stability
with
negligible
decay
after
1000
h
OER
0.5
M
H2SO4,
along
high
activity
an
overpotential
only
180
mV
at
10
mA
cm–2.
In
situ
attenuated
total
reflectance
surface-enhanced
infrared
absorption
spectroscopy
(ATR-SEIRAS),
differential
electrochemical
mass
spectrometry
(DEMS),
density
functional
theory
(DFT)
calculations
were
used
to
reveal
interface
noninterface
RuO2
sites
enabled
oxide
path
mechanism
(OPM)
enhanced
adsorbate
(AEM-plus),
respectively,
during
OER.
simultaneous
independent
pathways
accessible
matching
guides
improved
design
acidic
media.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(30)
Published: May 27, 2024
Abstract
Electrochemical
water
splitting
is
a
promising
technique
for
the
production
of
high‐purity
hydrogen.
Substituting
slow
anodic
oxygen
evolution
reaction
with
an
oxidation
that
thermodynamically
more
favorable
enables
energy‐efficient
Moreover,
this
approach
facilitates
degradation
environmental
pollutants
and
synthesis
value‐added
chemicals
through
rational
selection
small
molecules
as
substrates.
Strategies
small‐molecule
electrocatalyst
design
are
critical
to
electrocatalytic
performance,
focus
on
achieving
high
current
density,
selectivity,
Faradaic
efficiency,
operational
durability.
This
perspective
discusses
key
factors
required
further
advancement,
including
technoeconomic
analysis,
new
reactor
system
design,
meeting
requirements
industrial
applications,
bridging
gap
between
fundamental
research
practical
product
detection
separation.
aims
advance
development
hybrid
electrolysis
applications.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
A
comprehensive
summary
of
the
stability
electrocatalytic
OER
will
provide
insight
into
electrocatalyst
design
and
device
optimization
for
industrial
applications.
