Abstract
Aqueous
zinc‐based
batteries
(AZBs)
are
gaining
widespread
attention
owing
to
their
intrinsic
safety,
relatively
low
electrode
potential,
and
high
theoretical
capacity.
Transition
metal
dichalcogenides
(TMDs)
have
convenient
2D
ion
diffusion
channels,
so
they
been
identified
as
promising
host
materials
for
AZBs,
but
face
several
key
challenges
such
the
narrow
interlayer
spacing
lack
of
in‐deep
understanding
energy
storage
mechanisms.
This
review
presents
a
comprehensive
summary
discussion
structure,
charge
mechanisms,
fabrication
strategies
TMD‐based
cathodes
AZBs.
Firstly,
structural
features
including
phase
types
electrical
properties
TMDs
underscored.
Then,
mechanisms
activation
principles
in
elaborated
along
with
discussions
about
influence
on
electrochemical
performance.
Afterward,
specific
is
focused
high‐performance
TMD
cathodes,
expansion,
defect
creation,
transition,
heteroatom
doping.
Finally,
considered
potential
effective
proposed
design
aqueous
Zn‐TMDs
batteries.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 6, 2025
Abstract
Zn‐I
2
battery
with
four‐electron
reaction
path
(I
−
/I
+
)
in
the
cathode
delivers
high
energy
density,
which
however
is
thermodynamically
not
favored
as
I
metastable.
Herein,
it
demonstrated
that
conjugated
2P
valence
electrons
graphitic
framework
can
be
relocated,
offering
chances
to
stabilize
species.
Combinations
of
elements
(B,
N,
C,
O)
various
configurations
are
first
screened
computationally,
identifying
O─B─C─N
optimal
structure.
In
this
B‐centered
domain,
adjacent
O
and
meta‐positioned
owing
more
higher
electronegativity,
found
withdraw
from
surrounding
C
atoms
enrich
z
orbital
electron‐deficient
B
site
at
Fermi
level;
weak
electronically
enriched
tends
donate
reactants,
thus
also
enhance
adsorption
iodine
species
on
carbon
host.
Carbon
nanosheets
abundant
domains
developed
accordingly;
relevant
shows
a
large
capacity
420.3
mAh
g
−1
coulombic
efficiency
98.9%
under
0.8
A
;
moreover,
stand
for
9000
cycles
retention
88.8%.
This
computation‐guided
study
presents
how
interplay
2p‐elements
manipulated
pursue
an
efficient
host
novel
batteries.
Inorganic Chemistry Frontiers,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
The
artificially
constructed
porous
layered
basic
zinc
acetate
nanosheets
can
effectively
reduce
the
electric
field's
tip
effect
and
hydrogen
evolution
reaction,
leading
to
uniform
Zn
nucleation
deposition.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 15, 2025
Abstract
A
bifunctional
electrocatalyst
is
developed,
exhibiting
high
catalytic
activity
and
reversibility
for
the
oxygen
reduction
reaction
(ORR)
evolution
(OER)
through
a
regulative
Fe
d‐orbital
engineering
strategy.
In
this
strategy,
iron
phthalocyanine
organic
molecule
(FeOM)
crystals
are
axially
coordinated
onto
multilayer
Mo
2
CT
x
MXene
(FeOM‐Mo
),
adopting
lying‐down
conformation.
This
hybridization
fosters
unique
electronic
guest–host
interactions,
with
FeOM
donating
charge
to
via
Fe−O
bonding,
leading
symmetry
breaking
in
distribution
modified
delocalization
of
Fe‐3d
charge,
accompanied
by
Fe(II)
spin‐state
transition.
These
transformations
enhance
adsorption
desorption
toward
oxygenated
intermediates,
optimizing
*
OOH−
O
transition
boost
ORR
OER
kinetics.
The
FeOM‐Mo
exhibits
favorable
half‐wave
potential
0.961
V
minimal
overpotential
349
mV
at
10
mA
cm
−2
1.0
m
KOH.
assembled
aqueous
zinc‐air
battery
(ZAB)
achieves
peak
power
density
155.3
mW
exceptional
charge–discharge
durability
over
1500
h,
outperforming
conventional
(Pt/C
+
RuO
)
system.
Overall,
findings
underscore
significance
structural
,
paving
way
innovative
air
cathodes
development
rechargeable
ZABs
enhanced
performance
cost‐effectiveness.
Abstract
Aqueous
zinc‐based
batteries
(AZBs)
are
gaining
widespread
attention
owing
to
their
intrinsic
safety,
relatively
low
electrode
potential,
and
high
theoretical
capacity.
Transition
metal
dichalcogenides
(TMDs)
have
convenient
2D
ion
diffusion
channels,
so
they
been
identified
as
promising
host
materials
for
AZBs,
but
face
several
key
challenges
such
the
narrow
interlayer
spacing
lack
of
in‐deep
understanding
energy
storage
mechanisms.
This
review
presents
a
comprehensive
summary
discussion
structure,
charge
mechanisms,
fabrication
strategies
TMD‐based
cathodes
AZBs.
Firstly,
structural
features
including
phase
types
electrical
properties
TMDs
underscored.
Then,
mechanisms
activation
principles
in
elaborated
along
with
discussions
about
influence
on
electrochemical
performance.
Afterward,
specific
is
focused
high‐performance
TMD
cathodes,
expansion,
defect
creation,
transition,
heteroatom
doping.
Finally,
considered
potential
effective
proposed
design
aqueous
Zn‐TMDs
batteries.
