ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(51), С. 70618 - 70625
Опубликована: Дек. 11, 2024
Ion-selective
membranes
serve
as
key
materials
for
reverse
electrodialysis
(RED)
technology
in
osmotic
energy
harvesting,
and
the
search
a
class
of
that
are
economical,
highly
robust,
sustainable
has
been
relentless
goal
researchers.
In
this
work,
all-natural
biomass
(reed
membranes)
often
used
flute
diaphragm,
which
makes
produce
brighter
crisper
sound,
presenting
high
strength
elasticity.
Ultrathin
natural
reed
(thickness
≈4.06
μm)
were
selected
representative
due
to
their
impressive
mechanical
properties
with
top-level
combination
yield
(≈63.5
MPa)
strain
(∼2%)
among
all
reported
materials.
More
importantly,
there
numerous
nanoscale
pores
negatively
charged
−OH
groups
on
surface,
providing
tiny
nanofluidic
channels
efficient
cation
transmembrane
transport,
endow
membrane
excellent
selectivity
caution
stable
salinity-gradient
conversion
performance.
The
delivers
performance
power
output
density
22.2
W
m–2
500-fold
NaCl
concentration
well
stability
(power
maintained
at
98.53%
more
than
6000
s).
This
work
provides
strategy
ion-selective
terms
economy,
fabrication
simplicity,
stability,
potential
utility
various
applications
such
harvesting.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(41)
Опубликована: Июль 30, 2024
Abstract
Facilitating
(002)‐textured
zinc
growth
is
crucial
for
achieving
dendrite‐free
deposition
in
zinc‐ion
batteries.
Electrolyte
engineering
holds
promise
directing
electrodeposition
toward
this
desired
orientation.
However,
despite
the
(002)
plane's
lower
surface
energy
compared
to
other
facets,
it
remains
unclear
why
plane
does
not
dominate
crystal
faces
during
under
normal
conditions.
This
knowledge
gap
underscores
need
better
understand
behaviors
and
influence
of
electrolyte
compositions
on
its
crystallographic
texture.
study
explores
different
tetraazamacrocycle
derivatives
as
additives.
It
reveals
that
solely
dictated
by
thermodynamic
equilibrium
but
also
significantly
influenced
interface
dynamics.
In
typical
ZnSO
4
electrolytes,
imbalanced
kinetics
among
reduction,
ion
diffusion,
adatom
diffusion
processes
lead
electroconvection
disorderly
accumulation,
hindering
proper
growth.
contrast,
introducing
specific
derivative
regulates
reduction
rate,
enhances
limiting
current
density,
expedites
mitigating
hydrodynamic
instability
dendrite
regulation
restores
thermodynamically
favorable
flat
deposition,
extending
anode's
lifespan
1800
h
at
5
mA
cm
−2
mAh
,
enabling
fabrication
a
high‐performance
hybrid
capacitor
prototype
capable
stable
operation
40
000
cycles.
Heteroatom
immobilization
engineering
(HAIE)
is
becoming
a
forefront
approach
in
materials
science
and
engineering,
focusing
on
the
precise
control
manipulation
of
atomic-level
interactions
within
heterogeneous
systems.
HAIE
has
emerged
as
an
efficient
strategy
to
fabricate
single-atom
sites
for
enhancing
performance
metal-based
batteries.
Despite
significant
progress
achieved
through
metal
anodes
batteries,
several
critical
challenges
such
dendrites,
side
reactions,
sluggish
reaction
kinetics
are
still
present.
In
this
review,
we
delve
into
fundamental
principles
underlying
heteroatom
anodes,
aiming
elucidate
its
role
electrochemical
We
systematically
investigate
how
facilitates
uniform
nucleation
inhibits
reactions
at
anode-electrolyte
interface,
promoting
desolvation
ions
accelerating
Finally,
discuss
various
strategies
implementing
electrode
materials,
high-temperature
pyrolysis,
vacancy
reduction,
molten-salt
etching
anchoring.
These
include
selecting
appropriate
heteroatoms,
optimizing
methods,
constructing
material
architectures.
They
can
be
utilized
further
refine
enhance
capabilities
facilitate
widespread
application
next-generation
battery
technologies.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 23, 2024
Abstract
Rechargeable
aqueous
zinc‐ion
batteries
(AZIBs)
are
considered
to
be
one
of
the
most
promising
devices
in
next
generation
energy
storage
systems.
However,
uncontrolled
growth
Zn
dendrites
during
electroplating
leads
rapid
battery
failure,
which
hinders
wide
application
AZIBs.
In
this
work,
an
Fe
metal
interface
(FMI)
with
electric
field
regulation
is
designed
on
anode
using
a
magnetron
sputtering
technology.
The
FMI
layer
nanosheet
array
not
only
uniforms
surface
field,
but
also
adjusts
2+
ion
distribution
inhibit
2D
diffusion.
strong
orientation
relationships
enhance
reversibility
plating/stripping,
improving
structural
stability
layer.
Consequently,
FMI@Zn
symmetric
cell
exhibits
ultra‐stable
lifespan
for
over
6000
h
(Cumulative
plated
capacity,
CPC
=
15
Ah
cm
−2
)
low
voltage
hysteresis
46.4
mV
and
high
Coulombic
efficiency
99.8%
at
5
mA
.
Even
large
current
density
40
,
reaches
19.7
proposed
strategy
reveals
prospect
designing
highly
stable
anode,
applies
other
anodes
The Innovation Materials,
Год журнала:
2024,
Номер
2(4), С. 100101 - 100101
Опубликована: Янв. 1, 2024
<p>Current
hydrogel
fabrication
techniques
often
fall
short
of
simultaneously
optimizing
key
structural
parameters,
such
as
network
uniformity,
crosslinking
density,
and
crystalline
domain
size,
essential
for
achieving
superior
mechanical
performance.
Herein,
we
introduce
a
solvent
exchange
coupled
dry-annealing
technique,
revolutionizing
the
synthesis
polyvinyl
alcohol
(PVA)
hydrogels.
This
strategy
seamlessly
integrates
uniformity
afforded
by
with
benefits
anisotropic
densification
crystallization
induced
dry
annealing,
thereby
transforming
microstructural
configuration
polymer
networks,
unprecedented
along
adjustable
domains
density
size.
Consequently,
resulting
PVA
hydrogels
feature
robust,
highly
organized
densely
packed,
large
domains.
These
exhibit
extraordinary
strength
stress
levels
reaching
34.15
MPa
toughness
(up
to
95.21
MJ
m<sup>-3</sup>)
,
supplemented
fracture
energy
99.2
kJ
m<sup>-2</sup>,
significantly
outperforming
traditional
Further
enhancement
properties
was
achieved
through
salting-out
process,
boosting
52.5
167.9
m<sup>-3</sup>.
advancement
not
only
ushers
in
new
era
technology
but
also
opens
avenues
creating
advanced
tailored
variety
sophisticated
applications.</p>
Aqueous
zinc
iodine
(Zn//I
2
)
batteries
have
garnered
widespread
attention
due
to
their
high
theoretical
specific
capacity
and
safety.
However,
the
corrosion
of
Zn
metal
anodes,
induced
by
H
O
molecules
polyiodides,
leads
a
short
cycling
life.
Herein,
4‐tert‐Butylcalix[6]arene
(TBCX)‐based
Janus
molecular
layers,
self‐assembled
on
interface,
are
utilized
inhibit
hydrogen
evolution
reaction
(HER)
confine
thereby
stabilizing
anode
achieving
long‐life
Zn//I
battery.
The
hydrophobic
tertiary
butyl
(C(CH
3
functional
groups
in
TBCX
layers
repel
molecules,
depressing
HER.
Significantly,
rate
at
Zn@TBCX
is
reduced
0.7
μmol
h
−1
cm
−2
.
Additionally,
hydroxyl
(OH)
TBCX,
with
lone
pair
electrons,
demonstrate
polar
affinity
for
preventing
them
from
reaching
interface
thus
suppressing
polyiodides.
Furthermore,
zincophilic
layer
also
acts
as
an
ionic
redistributor,
enabling
rapid
homogeneous
2+
flux.
Owing
these
attributes,
symmetric
cell
can
cycle
stably
2200
5
mA
,
Zn@TBCX//I
full
cells
deliver
extended
lifespan
6000
cycles
A
g
retention
ratio
98.8%.
