Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 5, 2025
Abstract
The
abundant
seawater
resources
provide
favorable
advantages
for
the
large‐scale
application
of
electrolysis
to
produce
hydrogen.
However,
catalysts
are
prone
triggering
chlorine
evolution
reaction
(CER)
and
easily
corroded
by
Cl
−
,
which
key
challenges
that
need
urgent
resolution
in
technology.
Here,
a
crystal/amorphous
heterostructure
bifunctional
composite
catalyst
(caMo‐NiFePO/NMF)
splitting
is
synthesized
through
situ
etching
phosphorylation.
incorporation
Mo
facilitates
formation
crystalline‐amorphous
interfaces
adjusts
Fe
electronic
states
d‐band
centers,
thereby
boosting
adsorption
capacity
*
OOH
intermediates
repulsion
forming
dynamic
OOH‐rich,
‐poor
Janus
interface.
This
enhances
catalytic
activity
prevents
deep
reconstruction
toward
hydroxyl
metal
oxide,
leading
highly
stable
effective
splitting.
Noteworthy,
caMo‐NiFePO/NMF
requires
low
overpotential
328
mV
reach
500
mA
cm
−2
alkaline
oxygen
(OER),
avoiding
CER.
It
also
shows
excellent
with
327
hydrogen
(HER).
As
catalyst,
demonstrates
performance
cell
potential
1.7
V
achieve
100
seawater,
maintaining
remarkable
stability
over
1000
h.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 21, 2025
Abstract
The
electrocatalytic
hydrogen
evolution
reaction
(HER)
is
a
promising
route
to
produce
sustainable
energy
carrier
for
global
carbon
neutrality.
HER
performance
largely
determined
by
the
overall
proton
activities,
but
identification
of
such
key
activities
in
microscopic
process
rather
difficult.
Herein,
study
demonstrates
visualized
concept
integrating
fundamental
with
electrochromic
technology
on
well‐designed
Pt@WO
3
platform
acidic
electrolyte,
where
can
be
rapidly
discriminated
color
changes
electrode.
In
contrast
bare
WO
counterpart,
electrode
displays
more
positive
potential
initial‐coloration
state
and
faster
decoloration
rate
associated
significantly
improved
kinetics
intercalation
deintercalation
within
component.
Correspondingly,
as‐prepared
catalyst
exhibits
remarkable
activity
lower
onset‐potential
(45
mV,
adsorption
accumulation)
smaller
Tafel
slope
(50
mV
dec
−1
,
desorption),
nearly
11.1‐
3.5‐fold
enhancement
than
those
counterpart.
It
believed
that
work
interesting
visualization
functionality
into
may
improve
readability
advance
exploration
intelligent
electrocatalysts.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 5, 2025
Abstract
The
abundant
seawater
resources
provide
favorable
advantages
for
the
large‐scale
application
of
electrolysis
to
produce
hydrogen.
However,
catalysts
are
prone
triggering
chlorine
evolution
reaction
(CER)
and
easily
corroded
by
Cl
−
,
which
key
challenges
that
need
urgent
resolution
in
technology.
Here,
a
crystal/amorphous
heterostructure
bifunctional
composite
catalyst
(caMo‐NiFePO/NMF)
splitting
is
synthesized
through
situ
etching
phosphorylation.
incorporation
Mo
facilitates
formation
crystalline‐amorphous
interfaces
adjusts
Fe
electronic
states
d‐band
centers,
thereby
boosting
adsorption
capacity
*
OOH
intermediates
repulsion
forming
dynamic
OOH‐rich,
‐poor
Janus
interface.
This
enhances
catalytic
activity
prevents
deep
reconstruction
toward
hydroxyl
metal
oxide,
leading
highly
stable
effective
splitting.
Noteworthy,
caMo‐NiFePO/NMF
requires
low
overpotential
328
mV
reach
500
mA
cm
−2
alkaline
oxygen
(OER),
avoiding
CER.
It
also
shows
excellent
with
327
hydrogen
(HER).
As
catalyst,
demonstrates
performance
cell
potential
1.7
V
achieve
100
seawater,
maintaining
remarkable
stability
over
1000
h.