Journal of the American Ceramic Society,
Journal Year:
2024,
Volume and Issue:
107(12), P. 8354 - 8366
Published: Aug. 26, 2024
Abstract
In
this
paper,
macroporous
high‐entropy
spinel
oxide
(HESO)
(Fe
0.2
Ni
Co
Mn
Zn
)
3
O
4
monoliths
were
successfully
fabricated
via
a
sol–gel
method
followed
by
calcination.
Appropriate
polyacrylic
acid
and
propylene
contents
allow
the
formation
of
three‐dimensional
co‐continuous
xerogel
monoliths,
water/glycerol
ratio
controls
macropore
size
monoliths.
Subsequent
calcination
achieves
precipitation
HESO
with
singular
phase
exceptional
structural
stability.
The
demonstrates
remarkable
performance
in
oxygen
evolution
reaction
(OER)
an
overpotential
333
mV
at
100
mA
cm
−2
Tafel
slope
43.2
dec
–1
,
surpassing
that
RuO
2
(391
mV)
under
identical
conditions.
Furthermore,
catalytic
stability
catalyst
remains
superior
even
after
24
h
testing.
This
process
offers
promising
avenue
for
development
OER
catalysts
overall
water
splitting.
EcoEnergy,
Journal Year:
2024,
Volume and Issue:
2(1), P. 114 - 140
Published: March 1, 2024
Abstract
Developing
efficient
electrocatalysts
for
water
electrolysis
is
critical
sustainable
hydrogen
energy
development.
For
enhancing
the
catalytic
performance
of
metal
catalysts,
dual
doping
has
attracted
enormous
interest
its
high
effectiveness
and
facile
realization.
Dual
effective
tuning
electronic
properties,
electrical
conductivity,
populating
active
sites,
improving
stability
catalysts.
In
this
review,
recent
developments
in
cation–cation,
cation–anion,
anion–anion
dual‐doped
catalysts
splitting
are
comprehensively
summarized
discussed.
An
emphasis
put
on
illustrating
how
regulates
external
internal
properties
boosts
Additionally,
perspectives
pointed
out
to
guide
future
research
engineering
high‐performance
heteroatom‐doped
electrocatalysts.
Small,
Journal Year:
2024,
Volume and Issue:
20(26)
Published: Jan. 20, 2024
Bifunctional
catalysts
have
inherent
advantages
in
simplifying
electrolysis
devices
and
reducing
costs.
Developing
efficient
stable
bifunctional
is
of
great
significance
for
industrial
hydrogen
production.
Herein,
a
catalyst,
composed
nitrogen
sulfur
co-doped
carbon-coated
trinickel
disulfide
(Ni
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(4), P. 1582 - 1582
Published: Feb. 13, 2025
Developing
a
highly
active
and
stable
catalyst
for
acidic
oxygen
evolution
reactions
(OERs),
the
key
half-reaction
proton
exchange
membrane
water
electrolysis,
has
been
one
of
most
cutting-edge
topics
in
electrocatalysis.
A
dual-doping
strategy
optimizes
electronic
environment,
modifies
coordination
generates
vacancies,
introduces
strain
effects
through
synergistic
effect
two
elements
to
achieve
high
catalytic
performance.
In
this
review,
we
summarize
progress
dual
doping
RuO2
or
IrO2
OERs.
The
three
main
mechanisms
OERs
are
dicussed
firstly,
followed
by
detailed
examination
development
history
catalysts,
from
experimentally
driven
systems
machine
learning
(ML)
theoretical
screening
systems.
Lastly,
provide
summary
remaining
challenges
future
prospects,
offering
valuable
insights
into
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 24, 2024
Abstract
The
creation
of
highly
efficient
and
economical
electrocatalysts
is
essential
to
the
massive
electrolysis
water
produce
clean
energy.
ability
use
urea
reaction
oxidation
(UOR)
in
place
oxygen/hydrogen
evolution
process
(OER/HER)
during
splitting
a
significant
step
toward
production
high‐purity
hydrogen
with
less
energy
usage.
Empirical
evidence
suggests
that
UOR
consists
two
stages.
First,
metal
sites
undergo
an
electrochemical
pre‐oxidation
reaction,
then
molecules
on
high‐valence
are
chemically
oxidized.
Here,
scandium‐doped
CoTe
supported
carbon
nanotubes
called
Sc@CoTe/CNT
reported
CoTe/CNT
as
composite
efficiently
promote
generation
from
durable
active
for
OER/UOR/HER
alkali
solutions.
Electrochemical
impedance
spectroscopy
indicates
facilitates
charge
transfer
across
interface.
Furthermore,
nanocatalyst
has
high
performance
KOH
KOH‐containing
solutions
demonstrated
by
HER,
OER,
(215
mV,
1.59,
1.31
V,
respectively,
at
10
mA
cm
−2
1
m
KOH)
shows
195
1.61
1.3
respectively.
Consequently,
total
system
achieves
1.29
whereas
overall
device
obtaines
1.49
V
1.54,
1.48
This
work
presents
viable
method
combining
HER
maximally
effective
production.
