Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(32)
Published: March 1, 2024
Abstract
Limited
by
sluggish
reaction
kinetics,
insufficient
electrode
utilization
and
severe
volume
deformation,
designing
nickel‐based
materials
with
high
capacity
rate
capability
is
still
a
challenge.
Herein,
carbon
nanotubes
threaded
NiSe
2
/Co
3
Se
4
quantum
dots
embedded
in
nanospheres
rich
vacancies
both
Co
elaborately
designed
via
MOF
template
method.
The
formation
mechanism
of
the
elucidated
for
first
time,
which
ascribed
to
release
gas
during
decomposition
organic
ligand
inhibits
ordered
arrangement
atoms.
CNT‐V‐NiCoSe
possesses
many
significant
superiorities,
such
as
sufficiently
exposed
active
sites,
utilization,
favorable
charge‐carrier
migration,
relaxed
structure
deformation.
Consequently,
shows
top‐level
specific
(384
mAh
g
−1
at
1
A
),
ultrahigh
(209
150
)
remarkable
cycling
durability.
CNT‐V‐NiCoSe//Zn
battery
achieves
maximum
energy
density
615.6
Wh
kg
power
81.7
kW
.
Density
functional
theory
calculations
elucidate
improve
states
Fermi
level,
facilitates
internal
charge
transfer,
enhances
OH
−
adsorption
ability.
This
study
provides
guidance
preparation
high‐performance
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: Oct. 4, 2024
Abstract
Na
3
V
2
(PO
4
)
(NVP)
has
garnered
great
attentions
as
a
prospective
cathode
material
for
sodium-ion
batteries
(SIBs)
by
virtue
of
its
decent
theoretical
capacity,
superior
ion
conductivity
and
high
structural
stability.
However,
the
inherently
poor
electronic
sluggish
diffusion
kinetics
NVP
give
rise
to
inferior
rate
performance
unsatisfactory
energy
density,
which
strictly
confine
further
application
in
SIBs.
Thus,
it
is
significance
boost
sodium
storage
material.
Up
now,
many
methods
have
been
developed
optimize
electrochemical
In
this
review,
latest
advances
optimization
strategies
improving
are
well
summarized
discussed,
including
carbon
coating
or
modification,
foreign-ion
doping
substitution
nanostructure
morphology
design.
The
highlighted,
involving
Na,
V,
PO
3−
sites,
include
single-site
doping,
multiple-site
single-ion
multiple-ion
so
on.
Furthermore,
challenges
prospects
high-performance
also
put
forward.
It
believed
that
review
can
provide
useful
reference
designing
developing
toward
large-scale
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(9), P. 5530 - 5539
Published: Jan. 1, 2024
Zn
0.99
V
5
O
12
·
n
H
2
nanoribbons
deliver
a
low
decay
ratio
of
0.000687%
per
cycle
at
A
g
−1
over
15
000
cycles
due
to
charge
transfer
resistance,
high
D
2+
,
capacitive
contribution,
and
excellent
reversible
phase
transition.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(33)
Published: May 31, 2024
Redox-active
azo
compounds
are
emerging
as
promising
cathode
materials
due
to
their
multi-electron
redox
capacity
and
fast
response.
However,
practical
application
is
often
limited
by
low
output
voltage
poor
thermal
stability.
Herein,
we
use
a
heteroatomic
substitution
strategy
develop
4,4'-azopyridine.
This
modification
results
in
350
mV
increase
reduction
potential
compared
traditional
azobenzene,
increasing
the
energy
density
at
material
level
from
187
291
Wh
kg
Small,
Journal Year:
2024,
Volume and Issue:
20(28)
Published: Feb. 5, 2024
Aqueous
Zn-metal
battery
is
considered
as
a
promising
energy-storage
system.
However,
uncontrolled
zinc
dendrite
growth
the
main
cause
of
short-circuit
failure
in
aqueous
Zn-based
batteries.
One
most
efficient
and
convenient
strategies
to
alleviate
this
issue
introduce
appropriate
zincophilic
nucleation
sites
guide
metal
deposition
regulate
crystal
growth.
Herein,
work
proposes
Bi
