Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(40), P. 27540 - 27548
Published: Jan. 1, 2024
An
overall
water
splitting
electrocatalyst
with
excellent
properties
was
prepared,
in
which
the
co-existence
of
fcc
Ru
and
RuO
2
achieved
for
first
time.
The
utilization
rate
also
greatly
improved.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(49)
Published: Oct. 25, 2024
Abstract
Direct
seawater
electrolysis
is
emerging
as
a
promising
renewable
energy
technology
for
large‐scale
hydrogen
generation.
The
development
of
Os‐Ni
4
Mo/MoO
2
micropillar
arrays
with
strong
metal‐support
interaction
(MSI)
bifunctional
electrocatalyst
reported.
structure
enhances
electron
and
mass
transfer,
extending
catalytic
reaction
steps
improving
efficiency.
Theoretical
experimental
studies
demonstrate
that
the
MSI
between
Os
Ni
optimizes
surface
electronic
catalyst,
reducing
barrier
thereby
activity.
Importantly,
first
time,
dual
Cl
−
repelling
layer
constructed
by
electrostatic
force
to
safeguard
active
sites
against
attack
during
oxidation.
This
includes
Os─Cl
adsorption
an
in
situ‐formed
MoO
2−
layer.
As
result,
catalyst
exhibits
ultralow
overpotential
113
336
mV
reach
500
mA
cm
−2
HER
OER
natural
from
South
China
Sea
(without
purification,
1
m
KOH
added).
Notably,
it
demonstrates
superior
stability,
degrading
only
0.37
µV
h
−1
after
2500
oxidation,
significantly
surpassing
technical
target
1.0
set
United
States
Department
Energy.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 4, 2025
The
strong
metal-support
interaction
(SMSI)
in
supported
metal
catalysts
represents
a
crucial
factor
the
design
of
highly
efficient
heterogeneous
catalysts.
This
can
modify
surface
adsorption
state,
electronic
structure,
and
coordination
environment
metal,
altering
interface
structure
catalyst.
These
changes
serve
to
enhance
catalyst's
activity,
stability,
reaction
selectivity.
In
recent
years,
multitude
researchers
have
uncovered
range
novel
SMSI
types
induction
methods
including
oxidized
(O-SMSI),
adsorbent-mediated
(A-SMSI),
wet
chemically
induced
(Wc-SMSI).
Consequently,
systematic
critical
review
is
desirable
illuminate
latest
advancements
deliberate
its
application
within
article
provides
characteristics
various
most
methods.
It
concluded
that
significantly
contributes
enhancing
catalyst
selectivity,
increasing
catalytic
activity.
Furthermore,
this
paper
offers
comprehensive
extensive
electrocatalysis
hydrogen
evolution
(HER),
oxygen
(OER),
reduction
(ORR),
carbon
dioxide
(CO2RR).
Finally,
opportunities
challenges
faces
future
are
discussed.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 26, 2025
Abstract
Developing
cost‐effective
hydrogen
evolution
reactions
(HER)
catalysts
to
replace
Pt/C
in
alkaline
seawater
media
remains
a
critical
challenge.
Therefore,
the
osmium‐osmium
phosphide
(Os‐OsP
2
)
catalyst
is
reported
with
heterogeneous
junction
through
ultrafast
(20
s)
microwave
quasi‐solid
approach
for
seawater‐splitting
under
industrial‐grade
current
density.
Experimental
and
theoretical
analysis
reveal
that
Os‐OsP₂
interface
optimizes
electronic
structure:
osmium
(Os)
sites
accelerate
water
dissociation
by
lowering
d‐band
center,
while
OsP₂
promotes
desorption
via
interfacial
spillover,
collectively
reducing
HER
energy
barrier.
In
addition,
requires
only
1.74
V
reach
1
A
cm
−2
owns
high
price
activity
anion
exchange
membrane
electrolyzer,
surpassing
commercial
23%
efficiency
identical
conditions.
Furthermore,
it
exhibits
robust
across
wide
pH
range
exceptional
durability
over
100
h
seawater.
Economic
evaluation
highlights
its
superior
cost
(85.6
dollar⁻¹),
90‐fold
higher
than
Pt/C,
production
costs
($0.86
GGE⁻¹)
undercutting
U.S.
DOE
target.
This
study
provides
feasible
guidance
development
of
high‐performance,
scalable
from