Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 7, 2025
Abstract
Seawater
electrolysis
is
pivotal
for
sustainable
hydrogen
production,
yet
chloride‐induced
catalyst
corrosion
severely
hinders
its
efficiency.
Here,
a
(Mo,
Co)P
x
electrocatalyst
via
two‐step
hydrothermal‐phosphorization
strategy
engineered,
enabling
in
situ
formation
of
dynamic
dual‐anion
(MoO
4
2
⁻/PO
3
⁻)
Cl
−
‐rejection
interface.
This
tailored
interface
effectively
blocks
adsorption
while
preserving
hydroxyl
accessibility,
significantly
enhancing
resistance
alkaline
seawater.
The
optimized
delivers
exceptional
oxygen
evolution
reaction
performance
seawater
electrolysis,
achieving
ultralow
overpotentials
213
and
360
mV
to
reach
current
densities
10
1000
mA
cm
−2
,
respectively.
Remarkably,
the
with
an
situ‐generated
rejection
layer
demonstrates
durability,
exhibiting
only
20mV
degradation
during
480‐h
stability
test
under
high‐current
conditions.
In
Raman
spectroscopy,
attenuated
total
reflectance
surface‐enhanced
infrared
absorption
density
functional
theory
calculations
demonstrate
that
not
enhances
but
also
promotes
rapid
surface
reconstruction
Co
species
interfacial
water
adsorption,
thereby
suppressing
competitive
chlorine
reactions.
work
provides
rational
designing
durable
electrocatalysts
situ‐engineered
anion‐rejection
interfaces,
advancing
efficient
electrolysis.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 5, 2025
Abstract
Electrochemical
biomass
conversion
offers
a
promising
approach
for
organic
synthesis
and
upgrading.
Iron‐based
catalyst
hold
considerable
promise
in
this
domain,
however,
challenges
related
to
stability
under
electrocatalytic
conditions
limit
their
broader
application.
In
work,
an
iron‐based
integrated
foam
(FeO
x
/Fe‐IF)
electrode
fabricated
via
thermal
treatment
process
is
presented,
which
generates
highly
active
stable
mixed
oxide
species
situ.
The
structural
composition
enables
FeO
/Fe‐IF
exhibit
outstanding
activity
5‐hydroxymethylfurfural
(5‐HMF)
electroreduction,
achieving
near‐complete
with
high
selectivity
toward
2,5‐dihydroxymethylfuran
(DHMF).
Remarkably,
maintains
durability
5‐HMF
approaching
100%
DHMF
around
92%
over
ten
successive
cycles.
situ
spectroscopic
analyses
reveal
that
Fe
2
O
3
effectively
stabilize
4
sites,
ensuring
sustained
catalytic
performance.
kinetic
isotope
studies
suggest
electrochemical
hydrogenation
(ECH)
mechanism,
where
adsorbed
hydrogen
(*H)
(*HMF)
interact
produce
DHMF.
Additionally,
the
demonstrates
adaptability
across
broad
pH
range
(7–14),
efficiency
continuous
flow‐cell
synthesis,
great
hydrogenating
other
biomass‐derived
chemicals,
underscoring
versatility
of
/Fe‐IF.
This
work
provides
valuable
insights
designing
efficient
electrocatalysts
conversion.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 7, 2025
Abstract
Seawater
electrolysis
is
pivotal
for
sustainable
hydrogen
production,
yet
chloride‐induced
catalyst
corrosion
severely
hinders
its
efficiency.
Here,
a
(Mo,
Co)P
x
electrocatalyst
via
two‐step
hydrothermal‐phosphorization
strategy
engineered,
enabling
in
situ
formation
of
dynamic
dual‐anion
(MoO
4
2
⁻/PO
3
⁻)
Cl
−
‐rejection
interface.
This
tailored
interface
effectively
blocks
adsorption
while
preserving
hydroxyl
accessibility,
significantly
enhancing
resistance
alkaline
seawater.
The
optimized
delivers
exceptional
oxygen
evolution
reaction
performance
seawater
electrolysis,
achieving
ultralow
overpotentials
213
and
360
mV
to
reach
current
densities
10
1000
mA
cm
−2
,
respectively.
Remarkably,
the
with
an
situ‐generated
rejection
layer
demonstrates
durability,
exhibiting
only
20mV
degradation
during
480‐h
stability
test
under
high‐current
conditions.
In
Raman
spectroscopy,
attenuated
total
reflectance
surface‐enhanced
infrared
absorption
density
functional
theory
calculations
demonstrate
that
not
enhances
but
also
promotes
rapid
surface
reconstruction
Co
species
interfacial
water
adsorption,
thereby
suppressing
competitive
chlorine
reactions.
work
provides
rational
designing
durable
electrocatalysts
situ‐engineered
anion‐rejection
interfaces,
advancing
efficient
electrolysis.
