Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 10, 2024
Abstract
This
study
reports
an
effective
strategy
for
designing
3D
electrocatalyst
via
the
deposition
of
ZIF67‐derived
Co–CN
shell
layer
over
CuO
nanoarrays
to
form
a
CuO@Co–CN
hybrid,
followed
by
incorporation
with
p
‐block
Sb
single
atoms
(CuO@Co–CN/Sb)
obtain
highly
activated
catalytic
behaviors.
Inheriting
both
excellent
intrinsic
activity
components
and
their
synergy,
CuO@Co–CN/Sb
material
serves
as
high‐efficiency
multifunctional
catalyst
overall
water
splitting
zinc
(Zn)–air
batteries.
The
yields
current
density
10
mA
cm
−2
at
low
overpotential
72
250
mV
hydrogen
evolution
reaction
oxygen
reaction,
respectively.
Furthermore,
electrolyzer
based
on
shows
remarkable
performance
derived
0.5
A
cell
voltage
2.67
V
good
stability
50
h
continuous
operation
high
.
Simultaneously,
Zn–air
battery
using
air
cathode
open
circuit
1.455
discharge
power
131.07
mW
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Jan. 22, 2025
The
H2-evolution
kinetics
play
a
pivotal
role
in
governing
the
photocatalytic
hydrogen-evolution
process.
However,
achieving
precise
regulation
of
H-adsorption
and
H-desorption
equilibrium
(Hads/Hdes)
still
remains
great
challenge.
Herein,
we
propose
fine-tuning
d-p
hybridization
strategy
to
precisely
optimize
Hads/Hdes
Ni-Bx
modified
CdS
photocatalyst
(Ni-Bx/CdS).
X-ray
absorption
fine-structure
spectroscopy
theoretical
calculations
reveal
that
increasing
B-atom
amount
cocatalyst
gradually
strengthens
orbital
interaction
between
Ni3d
B2p,
resulting
consecutive
d-band
broadening
controllable
center
on
Ni
active
sites.
above
optimization
allows
for
modulation
dynamics
Ni-Bx/CdS,
ultimately
demonstrating
remarkable
activity
13.4
mmol
g-1
h-1
(AQE
=
56.1
%).
femtosecond
transient
further
confirms
rapid
electron-transfer
Ni-Bx/CdS
photocatalyst.
This
work
provides
insights
into
optimal
design
prospective
catalysts.
A
is
proposed
sites,
H-adsorption/desorption
balance
improving
H2
evolution
efficiency.
Energy Materials,
Journal Year:
2025,
Volume and Issue:
5(8)
Published: March 21, 2025
Seawater
electrolysis
offers
a
sustainable
solution
for
hydrogen
production
by
utilizing
ocean
water
as
an
electrolyte.
However,
the
chlorine
evolution
reaction
(ClER)
and
accumulation
of
magnesium
calcium
precipitates
pose
significant
challenges
to
efficiency
durability.
ClER
competes
with
oxygen
reaction,
reducing
output
accelerating
electrode
degradation,
while
precipitate
formation
on
cathode
blocks
catalytic
sites
impairs
long-term
performance.
Anion
exchange
membrane
electrolyzers
tackle
these
leveraging
alkaline
media
suppress
enhance
catalyst
stability.
Recent
advances
in
selective
catalysts,
protective
coatings,
alternative
oxidation
reactions
further
improve
selectivity
energy
efficiency.
Additionally,
strategies
such
surface
engineering
pH
modulation
mitigate
formation,
ensuring
stable
operation.
Scaling
innovations
into
anion
electrolyzer
systems
demonstrates
their
potential
industrial-level
production.
By
overcoming
fundamental
practical
barriers,
seawater
toward
commercial
deployment
future.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 27, 2024
Abstract
Lithium–sulfur
batteries
(LSBs)
offer
high
energy
density
and
environmental
benefits
hampered
by
the
shuttle
effect
related
to
sluggish
redox
reactions
of
long‐chain
lithium
polysulfides
(LiPSs).
However,
fashion
modification
d
‐band
center
in
separators
is
still
ineffective,
wherein
mechanism
understanding
always
relies
on
theoretical
calculations.
This
study
visibly
probed
evolution
Co
3
during
charge
discharge
using
advanced
inverse
photoemission
spectroscopy/ultraviolet
spectroscopy
(IPES/UPS),
which
offers
reliable
evidence
are
consistent
well
with
This,
coupled
situ
Raman
X‐ray
diffraction
(XRD)
electrochemical
data,
co‐evidences
a
novel
pre‐activating
S
LSBs:
LiPSs
desert/insert
C‐N
matrixes
within
series
Co@NCNT‐based
separators.
The
insight
pre‐activation
discovered
that
downshifts
hybridized
2
p
orbitals
LiPSs,
giving
rise
more
pronounced
covalency
thus
accelerating
conversion
S₈.
Benefiting
from
these
advantages,
optimized
LSB
possesses
minimal
decay
rate
0.0058%
after
200
cycles
at
10
C.
provides
new
insights
into
mechanisms
supports
conventional
models
center's
impact
performance.
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
Inorganic Chemistry Frontiers,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Pt-loaded
CeO
2
cubes
were
designed
via
a
rapid
and
eco-friendly
ultrafast
microwave
quasi-solid-state
approach
within
60
s,
which
exhibited
low
overpotential
of
10
mV
to
reach
mA
cm
−2
in
0.5
M
H
SO
4
with
excellent
long-term
stability.
