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.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(28)
Published: April 25, 2024
Abstract
The
high
cost
of
proton
exchange
membrane
water
electrolysis
(PEMWE)
originates
from
the
usage
precious
materials,
insufficient
efficiency,
and
lifetime.
In
this
work,
an
important
degradation
mechanism
PEMWE
caused
by
dynamics
ionomers
over
time
in
anode
catalyst
layer
(ACL),
which
is
a
purely
mechanical
microstructure,
identified.
Contrary
to
conventional
understanding
that
microstructure
ACL
static,
micropores
are
inclined
be
occupied
due
localized
swelling/creep/migration,
especially
near
ACL/PTL
(porous
transport
layer)
interface,
where
they
form
channels
reactant/product
couples.
Consequently,
with
increased
at
PTL/ACL
interface
exhibit
rapid
continuous
degradation.
addition,
close
correlation
between
ink
discovered.
Specifically,
if
more
migrate
top
ink,
accumulate
ACL/PEM
leaving
fewer
interface.
Therefore,
ionomer
distribution
successfully
optimized,
exhibits
reduced
enriches
reducing
decay
rate
factor
three
when
operated
2.0
A
cm
−2
80
°C.
findings
provide
general
way
achieve
low‐cost
hydrogen
production.
Energy and AI,
Journal Year:
2024,
Volume and Issue:
17, P. 100406 - 100406
Published: July 28, 2024
Proton
exchange
membrane
(PEM)
based
electrochemical
systems
have
the
capability
to
operate
in
fuel
cell
(PEMFC)
and
water
electrolyser
(PEMWE)
modes,
enabling
efficient
hydrogen
energy
utilisation
green
production.
In
addition
essential
stacks,
system
of
PEMFC
or
PEMWE
consists
four
sub-systems
for
managing
gas
supply,
power,
thermal,
water,
respectively.
Due
system's
complexity,
even
a
small
fluctuation
certain
sub-system
can
result
an
unexpected
response,
leading
reduced
performance
stability.
To
improve
robustness
responsiveness,
considerable
efforts
been
dedicated
developing
advanced
control
strategies.
This
paper
comprehensively
reviews
various
strategies
proposed
literature,
revealing
that
traditional
methods
are
widely
employed
due
their
simplicity,
yet
they
suffer
from
limitations
accuracy.
Conversely,
offer
high
accuracy
but
hindered
by
poor
dynamic
performance.
highlights
recent
advancements
incorporating
machine
learning
algorithms.
Additionally,
provides
perspective
on
future
development
strategies,
suggesting
hybrid
should
be
used
research
leverage
strength
both
sides.
Notably,
it
emphasises
role
artificial
intelligence
(AI)
advancing
demonstrating
its
significant
potential
facilitating
transition
automation
autonomy.
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.
