Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(29)
Published: April 26, 2024
Abstract
2D
conjugated
metal–organic
frameworks
(2D
c
‐MOFs)
with
large
pore
sizes
and
high
surface
areas
are
advantageous
for
adsorbing
iodine
species
to
enhance
the
electrochemical
performance
of
aqueous
dual‐ion
batteries
(ADIBs).
However,
most
reported
‐MOFs
feature
microporous
structures,
few
examples
exhibiting
mesoporous
characteristics.
Herein,
we
developed
two
‐MOFs,
namely
PA‐TAPA−Cu‐MOF
PA‐PyTTA−Cu‐MOF,
using
newly
designed
arylimide
based
multitopic
catechol
ligands
(6OH‐PA‐TAPA
8OH‐PA‐PyTTA).
Notably,
exhibits
largest
(3.9
nm)
among
all
‐MOFs.
Furthermore,
demonstrated
that
these
can
serve
as
promising
cathode
host
materials
polyiodides
in
ADIBs
first
time.
The
incorporation
triphenylamine
moieties
resulted
a
higher
specific
capacity
(423.4
mAh
g
−1
after
100
cycles
at
1.0
A
)
superior
cycling
performance,
retaining
96
%
over
1000
10
compared
PA‐PyTTA−Cu‐MOF.
Our
comparative
analysis
revealed
increased
number
N
anchoring
sites
larger
size
facilitate
efficient
conversion
I
3
−
,
supported
by
spectroscopic
electrochemistry
density
functional
theory
calculations.
Energy Materials and Devices,
Journal Year:
2024,
Volume and Issue:
2(3), P. 9370040 - 9370040
Published: May 27, 2024
The
intensifying
challenges
posed
by
climate
change
and
the
depletion
of
fossil
fuels
have
spurred
concerted
global
efforts
to
develop
alternative
energy
storage
solutions.
Aqueous
zinc-ion
batteries
(AZIBs)
emerged
as
promising
candidates
for
large-scale
electrochemical
systems,
owing
their
intrinsic
safety,
cost-effectiveness
environmental
sustainability.
However,
persistent
issue
Zn
dendrite
growth
poses
a
significant
challenge
performance
improvements
commercial
viability
AZIBs.
use
three-dimensional
porous
anodes
instead
planar
plates
has
been
demonstrated
an
effective
strategy
regulate
deposition/stripping
behavior
Zn2+
ions,
thereby
inhibiting
growth.
Here,
we
summarize
merits
provide
comprehensive
overview
recent
advancements
in
engineering
metal
anodes,
with
particular
emphasis
on
structural
orderliness
critical
role
structure
modulation
enhancing
battery
performance.
Furthermore,
present
strategic
insights
into
design
aiming
facilitate
practical
implementation
AZIBs
grid-scale
applications.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 5, 2025
Abstract
Aqueous
Zn
batteries
have
garnered
a
great
deal
of
attention
owing
to
environmental
benefits,
intrinsic
safety,
and
cost‐effectiveness.
However,
the
commercial
viability
these
is
hindered
by
anode
issues,
including
dendrite
formation
side
reactions.
Herein,
authors
modulate
deposition
behavior
2+
ions
through
3D
ZIF‐8@MXene
(Z@M)
composite
coating.
The
Z@M
coating
can
effectively
reduce
contact
area
with
electrolyte,
inhibiting
hydrogen
evolution
reaction
corrosion.
Notably,
theoretical
calculations
in
situ
experimental
observations
reveal
that
dual
coordination
mechanism
MXene
ZIF‐8
significantly
improves
adsorption
energy
atoms.
This
improved
capacity
capture
will
promote
desolvation
hydrated
ions,
resulting
dendrite‐free
process.
Therefore,
symmetry
cell,
Z@M‐Zn
demonstrates
an
impressive
cycle
life
1050
h
at
1
mA
cm
−2
.
When
applies
aqueous
Zn‐I
2
battery,
remarkable
lifespan
over
2400
cycles
5
C.
work
provides
straightforward
approach
designing
reversible
anode,
offering
promising
potential
for
broader
applications
across
various
metal‐based
systems.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
A
superelastic,
high
ionic
conductivity
and
environment-friendly
hydrogel
electrolyte
is
developed
based
on
the
unique
advantages
of
α-helical
proteins.