Small,
Journal Year:
2024,
Volume and Issue:
20(31)
Published: March 3, 2024
The
rational
design
of
heterogeneous
catalysts
is
crucial
for
achieving
optimal
physicochemical
properties
and
high
electrochemical
activity.
However,
the
development
new
amorphous-crystalline
heterostructures
significantly
more
challenging
than
that
existing
crystalline-crystalline
heterostructures.
To
overcome
these
issues,
a
coordination-assisted
strategy
can
help
fabricate
an
amorphous
NiO/crystalline
NiCeO
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 27, 2024
Abstract
In
alkaline
water
electrolysis
and
anion
exchange
membrane
technologies,
the
hydrogen
evolution
reaction
(HER)
at
cathode
is
significantly
constrained
by
a
high
energy
barrier
during
dissociation
step.
This
study
employs
phase
engineering
strategy
to
construct
heterostructures
composed
of
crystalline
Ni
4
W
amorphous
WO
x
aiming
enhance
catalytic
performance
in
HER
under
conditions.
work
systematically
modulates
oxidation
states
within
heterostructure
adjust
electronic
boundary,
barriers
associated
with
step,
adsorption/desorption
properties
intermediates
process.
The
optimized
catalyst,
W/WO
‐2,
quasi‐metallic
state
coordinated
low
oxygen
content
,
demonstrates
exceptional
(22
mV@10
mA
cm
−2
),
outperforming
commercial
Pt/C
(30
).
Furthermore,
operando
X‐ray
absorption
spectroscopy
analysis
theoretical
calculations
reveal
that
atoms
serve
as
active
sites
for
nearby
facilitated
release
H
2
.
These
findings
provide
valuable
insights
into
designing
efficient
heterostructured
materials
conversion.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(40)
Published: Aug. 19, 2024
Abstract
Tungsten
oxides
suffer
from
sluggish
ion
diffusion
kinetics,
limited
storage
capacity,
and
inadequate
stability
within
the
aqueous
zinc
electrolyte,
thereby
constraining
their
applicability
in
electrochromic
energy
devices
(EESDs).
Here,
amorphous
hydrated
tungsten
oxide
films
with
large
optical
modulation,
fast
response
speed,
high
cycling
are
reported,
enabled
by
tuning
contents
of
structural
water
adjusting
pH
value
electrolyte.
The
enhancement
performance
is
mainly
due
to
introduction
which
triggers
pseudocapacitive
behavior
dominated
surface
redox
reaction,
resulting
electrochemical
activity
kinetics.
Meanwhile,
relatively
low
ensures
chemical
film,
synergy
that
avoids
trapping,
leading
extraordinary
up
13000
cycles,
marking
state‐of‐the‐art
for
oxide‐based
materials
Based
on
films,
high‐capacity
stable
large‐size
EESDs
constructed
capability
visually
monitoring
status,
recovering
energy,
regulating
light.
This
work
provides
a
simple
yet
effective
strategy
enhancing
EESDs.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(32)
Published: June 1, 2024
Heterogeneous
electrode
materials
possess
abundant
heterointerfaces
with
a
localized
"space
charge
effect",
which
enhances
capacity
output
and
accelerates
mass/charge
transfer
dynamics
in
energy
storage
devices
(ESDs).
These
promising
features
open
new
possibilities
for
demanding
applications
such
as
electric
vehicles,
grid
storage,
portable
electronics.
However,
the
fundamental
principles
working
mechanisms
that
govern
are
not
yet
fully
understood,
impeding
rational
design
of
materials.
In
this
study,
heterointerface
evolution
during
charging
discharging
process
well
intricate
interaction
between
charge/mass
transport
phenomena,
is
systematically
discussed.
Guidelines
along
feasible
strategies
engineering
structural
to
address
specific
challenges
encountered
various
application
scenarios,
also
provided.
This
review
offers
innovative
solutions
development
heterogeneous
materials,
enabling
more
efficient
beyond
conventional
electrochemistry.
Furthermore,
it
provides
fresh
insights
into
advancement
clean
conversion
technologies.
contributes
knowledge
understanding
heterointerfaces,
paving
way
optimization
next-generation
sustainable
future.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(48)
Published: Aug. 19, 2024
Abstract
Bismuth‐based
materials
show
great
potential
in
aqueous
batteries.
But
it
is
difficult
to
design
a
bifunctional
bismuth‐based
material
for
zinc
and
ammonium
ion
batteries
(ZIBs
AIBs).
Herein,
electrospinning
method
followed
by
selenization
strategy
used
Bi
2
Se
3
nanodots
embedded
porous
carbon
nanofibers.
Experimental
studies
coupled
with
theoretical
calculations
prove
that
the
designs
of
nanodot
vacancy
improve
transfer
storage
Zn
2+
NH
4
+
.
are
restricted
nanofibers
during
cyclic
test.
An
insertion‐type
mechanism
revealed
ex
situ
characterizations.
As
result,
this
well‐designed
electrode
(6
mg
cm
−2
)
offers
high
reversible
capacities
270
mA
h
g
−1
ZIBs
192
AIBs
at
0.05
A
long‐term
cycle
life
(60%
capacity
retention
10
after
20
K
cycles
ZIBs,
78%
9
Remarkably,
still
displays
satisfactory
performances
even
an
ultrahigh
mass
loading
18
Furthermore,
full
cells
offer
120
90
respectively.
This
work
provides
reference
designing
electrode.
Small,
Journal Year:
2024,
Volume and Issue:
20(31)
Published: March 3, 2024
The
rational
design
of
heterogeneous
catalysts
is
crucial
for
achieving
optimal
physicochemical
properties
and
high
electrochemical
activity.
However,
the
development
new
amorphous-crystalline
heterostructures
significantly
more
challenging
than
that
existing
crystalline-crystalline
heterostructures.
To
overcome
these
issues,
a
coordination-assisted
strategy
can
help
fabricate
an
amorphous
NiO/crystalline
NiCeO
