Crystal Growth & Design,
Journal Year:
2024,
Volume and Issue:
24(22), P. 9763 - 9772
Published: Oct. 31, 2024
As
a
representative
ternary
oxide
semiconductor,
the
epitaxial
growth
of
uniaxially
aligned
ZnGa2O4
nanowire
arrays
on
common
substrates
remains
challenging,
owing
to
their
lattice
mismatch
and
differing
volatility
zinc
gallium
sources.
Herein,
we
demonstrate
controllable
vertically
well-aligned
c-plane
sapphire
substrate
by
simple
chemical
vapor
deposition
method.
To
achieve
strategic
control
composition
ZnGa2O4,
samples
with
different
ratios
source
materials
were
synthesized,
preferred
molar
ratio
ZnO/Ga2O3/C
for
obtaining
single-crystalline
ordered
was
found.
Combined
relationship
nucleation
site
analysis
between
c
([11̅2]ZnGa2O4//[112̅0]Al2O3
[11̅0]ZnGa2O4//[11̅00]Al2O3),
special
vapor–liquid–solid
process
explored:
horizontal
nanowires
triangular
pyramids
frustums
are
formed
successively
at
early
stage,
which
act
as
buffer
layer
progressively
alleviate
large
ZnGa2O4/sapphire
subsequent
formation
vertical
arrays.
In
addition,
effects
oxygen
concentration
Au
film
thickness
investigated.
This
work
provides
facile
referable
strategy
other
compound
nanowires,
paving
way
in
potential
applications.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(45), P. 30836 - 30847
Published: Oct. 30, 2024
The
unstable
lithium
(Li)/electrolyte
interface,
causing
inferior
cycling
efficiency
and
unrestrained
dendrite
growth,
has
severely
hampered
the
practical
deployment
of
Li
metal
batteries
(LMBs),
particularly
in
carbonate
electrolytes.
Herein,
we
present
a
robust
approach
capitalizing
on
dynamic
supramolecular
elastomer
(DSE)
interface
layer,
which
is
capable
being
reduced
with
to
spontaneously
form
strong
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 11, 2025
Abstract
3D
carbonaceous
host
is
considered
as
an
ideal
candidate
for
stabilizing
Li
metal
anode
(LMA)
owing
to
its
lightweight
and
high
electronic
conductivity.
Nonetheless,
the
surface
chemistries
of
carbon
materials
at
different
locations
should
be
regulated
modify
lithiophilicity
ion
diffusion.
In
this
study,
a
metal–organic
frameworks‐engaged
strategy
design
core–shell
porous
with
mixed
ionic/electronic
conducting
feature
developed.
To
specific,
Zn‐embedded
nanofibers
(Zn/CF)
are
designed
cores
using
ZIF‐8
particles
precursors
pore‐forming
agents.
Meanwhile,
NH
2
‐functionalized
UiO‐66
(NH
‐UiO‐66)
nanoparticles
in‐situ
grown
on
above
fibers
promoted
ions
migration.
As
result,
composite
LMA
bi‐functional
Zn/CF@NH
‐UiO‐66
demonstrates
enhanced
stability
rate
performance.
Particularly,
obtained
asymmetric
cell
delivers
stable
operation
up
500
cycles
1
mA
cm
−2
.
Moreover,
corresponding
Li‐Zn/CF@NH
‐UiO‐66//LiFePO
4
full
shows
high‐capacity
retention
93.4%
over
1700
C
(1
≈169
g
−1
).
ChemSusChem,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 26, 2024
Dendrite
growth
of
lithium
(Li)
metal
anodes
is
considered
as
one
the
most
tough
issues
for
Li
batteries
with
a
theoretically
high
energy
density.
This
attributed
to
rapid
exhaustion
ions
at
electrode/electrolyte
interface,
which
even
worse
low
temperatures
poor
diffusion
kinetics
ions.
Here,
pulse
charge
intermittent
rest
time
during
battery
charging
proposed
handle
dendrite
issue
temperatures.
The
depleted
near
interfaces
can
be
rapidly
replenished
time,
thus
effectively
suppressing
dendrites
growth.
Further
investigation
found
that
large
suppressed
ion
nucleation
stage.
equivalent
lifespan
considering
proposed.
At
-10
°C,
Li||Li
cycled
under
3
mA
cm
