Electrochemical Science Advances,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 7, 2024
ABSTRACT
Most
commonly,
electrochemical
CO
2
reduction
is
performed
in
a
three‐compartment
setup
employing
gas
diffusion
electrodes
(GDEs)
to
decrease
mass
transport
limitations
of
the
gaseous
reactant
reaction
interface.
However
recently,
there
has
been
rising
number
investigations
on
suitable
membrane
electrode
assemblies
(MEAs)
overcome
ohmic
potential
losses
caused
by
electrolyte
gaps
systems.
While
significant
majority
MEAs
exhibited
literature
based
catalyst‐coated
layers,
this
work
presents
an
approach
that
does
not
require
likewise
support.
On
basis
catalyst
suspension
similar
mixtures
already
employed
for
GDE
production
industrial
level,
method
directly
transfer
resulting
layers
developed.
The
Faradaic
efficiency
carbon
monoxide,
i.e.
target
product
formation
GDEs
manufactured
according
procedure,
can
be
matched
or
even
exceeded
individual
modifications
exchange
MEAs.
Simultaneously,
cell
potentials
remarkably
decreased
setup.
By
gradual
adaptation
fabrication
influence
important
manufacturing
parameters
unraveled,
also
discussing
effect
hydrogen
permeation
through
membrane.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 29, 2024
Abstract
In
the
pursuit
of
sustainable
hydrogen
production
via
water
electrolysis,
paramount
importance
electrocatalyst
stability
emerges
as
a
defining
factor
for
long‐term
industrial
viability.
A
thorough
understanding
and
enhancement
not
only
ensure
extended
catalyst
lifetimes
but
also
pave
way
consistent
efficient
generation.
This
review
focuses
on
pivotal
role
in
determining
practical
viability
oxygen
evolution
electrocatalysts
(OECs)
large‐scale
applications
electrolysis
production.
The
paper
explores
over
initial
activity,
citing
examples
hypothetical
scenarios.
First,
figures
merits
evaluation
are
explained
along
with
available
benchmarking
protocols
evaluation.
Further,
text
delves
into
various
strategies
that
can
enhance
which
include
self‐healing/regeneration
pathway,
reaction
(OER)
mechanism
optimization
to
achieve
highly
stable
OER
stabilization
active
metals
atoms
within
inhibit
dissolution
forward
application.
interplay
stability,
cost
is
suit
application
electrocatalyst.
Lastly,
it
outlines
challenges,
prospects,
future
directions,
presenting
guide
advancing
OECs
generation
landscape.
Nano-Micro Letters,
Journal Year:
2025,
Volume and Issue:
17(1)
Published: March 13, 2025
Abstract
The
state-of-the-art
anion-exchange
membrane
water
electrolyzers
(AEMWEs)
require
highly
stable
electrodes
for
prolonged
operation.
stability
of
the
electrode
is
closely
linked
to
effective
evacuation
H
2
or
O
gas
generated
from
surface
during
electrolysis.
In
this
study,
we
prepared
a
super-hydrophilic
by
depositing
porous
nickel–iron
nanoparticles
on
annealed
TiO
nanotubes
(NiFe/ATNT)
rapid
outgassing
such
nonpolar
gases.
NiFe/ATNT
exhibited
an
overpotential
235
mV
at
10
mA
cm
−2
oxygen
evolution
reaction
in
1.0
M
KOH
solution,
and
was
utilized
as
anode
AEMWE
achieve
current
density
1.67
A
1.80
V.
addition,
with
electrode,
which
enables
outgassing,
showed
record
1500
h
0.50
under
harsh
temperature
conditions
80
±
3
°C.
Energies,
Journal Year:
2024,
Volume and Issue:
17(17), P. 4514 - 4514
Published: Sept. 9, 2024
The
use
of
green
hydrogen
as
a
high-energy
fuel
the
future
may
be
an
opportunity
to
balance
unstable
energy
system,
which
still
relies
on
renewable
sources.
This
work
is
comprehensive
review
recent
advancements
in
production.
outlines
current
consumption
trends.
It
presents
tasks
and
challenges
economy
towards
hydrogen,
including
production,
purification,
transportation,
storage,
conversion
into
electricity.
main
types
water
electrolyzers:
alkaline
electrolyzers,
proton
exchange
membrane
solid
oxide
anion
electrolyzers.
Despite
higher
production
costs
compared
grey
this
suggests
that
technologies
become
cheaper
more
efficient,
cost
expected
decrease.
highlights
need
for
cost-effective
efficient
electrode
materials
large-scale
applications.
concludes
by
comparing
operating
parameters
considerations
different
electrolyzer
technologies.
sets
targets
2050
improve
efficiency,
durability,
scalability
underscores
importance
ongoing
research
development
address
limitations
technology
make
competitive
with
fossil
fuels.
Polymer Engineering and Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 2, 2025
Abstract
To
enhance
the
hydroxide
conductivity
and
alkaline
stability
of
polybenzimidazole
as
anion
exchange
membranes
(AEM)
to
produce
hydrogen
via
water
electrolysis,
a
deprotonated
poly[2,2′‐(1,4‐naphthalene)‐5,5′‐dibenzimidazole]
(NPBI)
was
cross‐linked
with
3‐hexyl
spacers
N
,
‐dimethylpiperidinium
cations
(QDMP)
cationic
groups,
forming
QDMP‐NPBI‐
x
composite
membrane.
Some
‐NH‐
groups
NPBI
are
deprotonated,
ammonium‐piperidine
complexes
QDMP,
which
leads
ion
cross‐linking
in
AEM.
The
homogeneous
structure
within
QDMP‐NPBI
not
only
significantly
augmented
their
thermal
chemical
but
also
enhanced
longevity
ionic
under
conditions.
Specifically,
QDMP‐NPBI‐20
membrane
reached
higher
level
139.7
mS/cm,
contrast
103
mS/cm
exhibited
by
pristine
at
363
K,
it
showed
current
density
113.5
mA/cm
2
2.4
V
1
M
KOH
solution.
All
AEMs
stability,
ionically
began
degrade
420°C.
maintained
93.1%
initial
after
500‐h
test
80°C,
no
discernible
changes
morphology
or
mass.
Characterization
results
affirm
that
these
prepared
harbor
superior
physicochemical
properties
elevated
conductivity,
underscoring
substantial
potential
for
deployment
AEM
electrolysis
technologies.
Highlights
introduction
QDMP
increased
OH
‐
sites
Three‐dimensional
mesh
provides
spatial
site‐blocking
effect.
Cross‐linked
enhances
achieves
K.
Batteries,
Journal Year:
2025,
Volume and Issue:
11(4), P. 126 - 126
Published: March 26, 2025
Mechanically
improved
polymeric
membranes
with
high
ionic
conductivity
(IC)
and
good
permeability
are
highly
desired
for
next-generation
anion
exchange
(AEMs)
in
order
to
reduce
Ohmic
losses
enhance
water
management
alkaline
membrane
fuel
cells.
To
move
towards
the
fabrication
of
such
high-performance
membranes,
creation
hydrophilic
ion-conducting
double
gyroid
(DG)
nanochannels
within
block
copolymer
(BCP)
AEMs
is
a
promising
approach.
However,
this
attractive
solution
remains
difficult
implement
due
complexity
constructing
well-developed
DG
morphology
across
entire
thickness.
deal
issue,
permeable
polystyrene-block-poly(2-vinylpyridine)-block-poly(ethylene
oxide)
were
produced
by
combining
solvent
vapor
annealing
(SVA)
treatment
methylation
process.
Here,
SVA
enabled
manufacture
DG-forming
BCP
while
process
allowed
conversion
pyridine
sites
N-methylpyridinium
(NMP+)
cations
via
Menshutkin
reaction.
Following
SVA-methylation
method,
IC
value
water-permeable
(~384
L
h−1
m−2
bar−1)
DG-structured
their
OH−counter
form
was
measured
be
~2.8
mS.cm−1
at
20
°C
lower
probed,
under
same
experimental
conditions,
from
as-cast
NMP+-containing
analogs
non-permeable
disordered
phase
(~1.2
mS.cm−1).
