Innovative advances and challenges in solid oxide electrolysis cells: Exploring surface segregation dynamics in perovskite electrodes
Materials Science and Engineering R Reports,
Год журнала:
2024,
Номер
161, С. 100864 - 100864
Опубликована: Окт. 16, 2024
Язык: Английский
Theoretical Insights into the Factors Affecting the Electrochemical Performance of Solid Oxide Electrolysis Cells for CO2 Reduction
Journal of environmental chemical engineering,
Год журнала:
2025,
Номер
unknown, С. 115696 - 115696
Опубликована: Фев. 1, 2025
Язык: Английский
Preparation and Properties of F-Doped PrBa0.8Sr0.2Co2O5+δ Perovskite Cathode Materials
Molecules,
Год журнала:
2025,
Номер
30(5), С. 1140 - 1140
Опубликована: Март 3, 2025
F-doped
PrBa0.8Sr0.2Co2O5+δ-xFx
(PBSCFx,
x
=
0,
0.025,
0.05,
0.075,
0.1)
cathode
powder
was
synthesized
by
the
sol-gel
method.
X-ray
diffraction
results
showed
that
all
samples
doped
with
F
exhibited
a
typical
tetragonal
perovskite
structure
without
heterophase.
doping
can
effectively
reduce
thermal
expansion
coefficient
(TEC)
of
materials,
which
decreased
from
25.3699
×
10-6
K-1
PBSC
to
23.5295
PBSCF0.1.
The
area-specific
resistance
(ASR)
PBSCF0.05
0.0207
Ω·cm2
at
800
°C,
conductivity
1637.27
S·cm-1
and
maximum
power
density
856.08
mW·cm-2.
Its
performance
had
slight
decay
after
100
h
°C.
significantly
improved
electrochemical
this
material
for
solid
oxide
fuel
cells
(SOFCs).
Язык: Английский
Revisiting Mo‐Doped SrFeO3‐δ Perovskite: The Origination of Cathodic Activity and Longevity for Intermediate‐Temperature Solid Oxide Fuel Cells
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 8, 2024
Abstract
The
development
of
cathode
materials
for
rapid
and
durable
oxygen
reduction
reaction
(ORR)
is
great
importance
intermediate‐temperature
solid
oxide
fuel
cells
(IT‐SOFCs).
Here,
we
reported
a
rationally
designed
minor
acidic
MoO
3
incorporated
SrFeO
3‐δ
‐based
perovskite
oxide,
SrFe
0.93
Mo
0.07
O
instead
normally
heavily
doped
one,
with
stable
cubic
phase,
exceptional
ORR
activity,
strong
Sr
segregation
resistance
CO
2
tolerance
as
reliable
IT‐SOFCs
through
combined
strategy
smith
acidity
average
metal‐oxygen
bond
energy
regulations.
Theoretical
investigation
on
the
origin
nonstoichiometric
associated
electronic
structure
properties
shows
that
significant
hybridization
Fe‐3d
O‐2p
state,
reduced
vacancies
formation
eased
bulk
ion
diffusivity
controllable
amount
Mo‐doping
contribute
to
remarkable
activity.
single
cell
exhibits
peak
power
density
0.24–1.12
W
cm
−2
at
600–800
°C,
excellent
stability
270
h
700
°C.
Furthermore,
demonstrates
thermal
cycling
robustness
well‐integrated
interfaces
without
any
performance
degradation
after
undergoing
20
temperature
fluctuations
throughout
500
h.
Therefore,
this
work
embodies
designing
active
highlights
potential
validated
by
multiple
perspective
considerations.
Язык: Английский
Step-by-step strategy to improve the performance of the (La,Sr)(Ga,Mg)O3-δ electrolyte for symmetrical solid oxide fuel cells
Ceramics International,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 1, 2024
Язык: Английский
A‐site Regulated (PrBa)xCo1.5Fe0.5O6‐δ Double Perovskite Oxides: Highly Active and Durable Electrocatalysts for the Enhanced Oxygen Evolution Reaction
ChemCatChem,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 25, 2024
Abstract
Oxygen
evolution
reaction
(OER)
represents
a
significant
bottleneck
in
many
energy
technologies
such
as
electrochemical
water
splitting,
metal‐oxygen
(O)
batteries,
and
solid
oxide
fuel
cells
(SOFCs)
because
of
the
complexity
process.
Double
perovskite
oxides
(ABO
3
),
recognized
for
their
compositional
flexibility,
have
emerged
excellent
OER
activity
stability.
This
study
investigates
catalytic
potential
A‐site‐ordered
double
ABO
with
(PrBa)
x
Co
1.5
Fe
0.5
O
6δ
(PBCF
−
,
=
0.9–1.1)
alkaline
media.
The
results
reveal
that
PBCF
−0.9
characterized
by
an
A‐site‐deficient
composition,
exhibits
exceptional
activity.
It
demonstrates
low
Tafel
slope
76.12
mV⋅dec
−1
overpotential
(
η
)
270
mV
at
10
mA⋅cm
−2
.
Notably,
intrinsic
is
25%
higher
than
stoichiometric
−1.0
Additionally,
remarkable
durability,
evidenced
its
stable
performance
during
6‐h
chronopotentiometry
(CP)
test
minimal
microstructural
changes.
These
underscore
effectiveness
A‐site
deficiency
optimizing
structure
improved
performance.
approach
presents
promising
strategy
designing
highly
efficient,
stable,
inexpensive
catalysts
energy‐related
applications.
Язык: Английский