Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 15, 2025
Abstract
Recycling
spent
lithium
iron
phosphate
(LFP)
batteries
is
crucial
for
resource
conservation
and
environmental
sustainability.
However,
the
heterogeneous
nature
of
LFP
materials
presents
challenges
universal
recycling
solutions.
This
work
proposes
an
oxidation‐reduction
process
to
regenerate
cathode
materials,
reconstructing
their
lattice
structure
through
high‐energy
sanding
spray
drying.
The
regenerated
exhibits
uniform
elemental
distribution,
regular
spherical
morphology,
excellent
electrochemical
performance.
initial
capacity
144.9
mAh
g
−1
at
1C
with
98%
retention
after
400
cycles.
Additionally,
material
maintains
135.4
2C,
97%
Density
functional
theory
(DFT)
calculations
confirm
that
removing
Fe
2+
defects
enhances
Li
+
diffusion,
improving
Compared
traditional
hydrometallurgical
pyrometallurgical
methods,
low‐cost,
less
polluting,
offers
a
profit
2.45
$
kg
.
method
enables
large‐scale,
homogeneous
while
maintaining
high
not
only
provides
in‐depth
study
reconstruction
but
also
novel
strategy
on
industrial
scale.
ACS Omega,
Год журнала:
2024,
Номер
9(47), С. 46643 - 46663
Опубликована: Ноя. 13, 2024
With
the
rapid
development
of
modern
society,
efficient
and
utilization
new
energy
have
become
more
important.
The
high-performance
storage
conversion
devices
has
a
decisive
impact
on
sustainable
use
energy.
In
foreseeable
future,
exploration
high-quality
functional
materials
for
will
continue
to
be
main
goal
pursued
by
scientific
application
fields.
Metal
organic
frameworks
(MOFs)
merits
adjustable
porosity
stable
structure.
Moreover,
metal
elements
in
MOFs
could
play
role
as
active
sites
during
electrochemical
process.
Thus,
various
kinds
their
derivatives
been
prepared
used
conversion.
this
work,
applications
potentials
cobalt-based
(Co-MOFs)
supercapacitors,
advanced
batteries,
catalysts
reviewed
summarized.
properties,
mechanisms,
effects
performance
were
described
depth.
A
large
number
Co-MOFs
with
unique
structures,
well
numerous
Co-MOF
composites,
developed,
excellent
achieved,
which
already
some
most
advantageous
field.
addition,
current
research
status,
difficulties,
prospects
Co-based
comprehensively
summarized
at
end
study.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 13, 2025
Metal-organic
framework
(MOF)
nanoparticles
have
attracted
widespread
attention
as
lubrication
additives
due
to
their
tunable
structures
and
surface
effects.
However,
solid
properties
been
rarely
explored.
This
work
introduces
the
positive
role
of
moisture
in
case
a
newly
described
Ti-based
MOF
(COK-47)
powder.
COK-47
achieves
an
8.5-fold
friction
reduction
compared
AISI
304
steel-on-steel
sliding
under
room
air.
In
addition,
maintains
similarly
low
coefficient
(0.1-0.2)
on
various
counterbodies,
including
Al2O3,
ZrO2,
SiC,
Si3N4.
Notably,
other
widely
studied
MOFs
(ZIF-8,
ZIF-67)
2D
materials
powder
(MXene,
TMD,
rGO),
exhibits
lowest
(≈0.1)
same
experimental
settings.
Raman
spectroscopy,
X-ray
diffraction,
photoelectron
energy
dispersive
scanning
electron
microscope,
transmission
microscopy
indicate
that
tribofilm
is
amorphous
film
obtained
by
hydrolysis
air
with
moisture.
Density
functional
theory
further
confirms
water
catalyzes
decomposition
COK-47,
crucial
step
forming
tribofilm.
study
demonstrates
idea
utilizing
water-assisted
mechanisms.
It
provides
new
insights
into
applications
tribology
highlights
interdisciplinary
contributions
mechanical
engineering
chemistry.
Small Structures,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 24, 2025
Sonodynamic
therapy
has
emerged
as
a
spatiotemporally
controllable
therapeutic
modality
in
combating
triple‐negative
breast
cancer,
yet
the
efficiency
of
sonosensitizers
is
limited
by
low
energy
conversion
and
endogenous
antioxidant
system.
Herein,
defect‐engineered
nano‐sonosensitizer
(MVP@HA)
synthesized
through
situ
local
etching
deposition
vanadyl
phosphate
(VOPO
4
)
onto
porous
walls
zirconium‐based
porphyrin
metal–organic
frameworks
(MOFs).
VOPO
partially
degraded
under
pathological
environment
can
effectively
inhibit
expression
nuclear
factor
erythroid
2‐related
2
(Nrf2)
its
downstream
enzymes
molecules.
Concomitantly,
autophagy
process
glutathione
production
are
impaired
cascaded
inhibition
direct
consumption,
inducing
multiple
overcoming
cellular
defense.
Moreover,
sonosensitive
catalytic
oxidation
MOFs
enhanced
generation
metal
defects
on
etching‐expanded
structures
promoting
mass
transfer
substrate.
The
nano‐sonosensitizers
show
higher
1
O
yield
(≈2.2‐fold)
than
effective
reduction
Nrf2
(2.8‐fold).
Thereby,
more
tumor
growth
achieved
compared
to
traditional
(3.45‐fold).
This
system
significantly
advances
for
therapy.
Metal–organic
frameworks
(MOFs)
and
their
derivatives
have
captivated
immense
interest
due
to
tunable
chemical
composition
structures.
Our
research
introduces
an
elegant
strategy
for
advancing
hybrid
MOF-based
electrocatalysts,
employing
scanning
electrochemical
cell
microscopy
(SECCM)
single-entity
electrochemistry
probing
of
individual
particles
with
precisely
engineered
compositions
We
achieved
controlled
phosphidation
Prussian
blue
analogues,
forming
hollow
nanocubes
Fe-doped
CoP/Co2P
heterojunctions,
which
demonstrated
significantly
enhanced
hydrogen
evolution
reaction
(HER)
activity,
emphasizing
the
pivotal
role
structural
compositional
tuning
in
transition
metal
phosphide
catalysts.
Utilizing
SECCM,
we
probed
intrinsic
HER
activity
nanocubes,
correlating
behavior
size
composition.
Computational
insights
revealed
that
heterojunctions
electronic
conductivity
spin
density,
established
internal
electric
fields,
minimized
Gibbs
free
energy
barrier.
This
study
paves
way
toward
advanced
nanostructured
underscoring
crucial
interplay
between
size,
structure,
composition,
catalytic
efficacy.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 15, 2025
Metal-organic
frameworks
(MOFs)
show
revolutionary
potential
in
quasi-solid-state
electrolytes
(QSSEs)
designed
for
high-energy-density
batteries,
owing
to
their
tunable
nanoporous
structures
and
open
metal
sites
(OMSs).
However,
application
is
hindered
by
insufficient
Li+
dissociation
low
ionic
conductivity,
attributed
limited
active
sites.
This
study
employed
defect
engineering
modulate
hafnium-based
MOFs,
increasing
OMS
density
while
optimizing
the
pore
microenvironment.
The
engineered
defects
improve
Lewis
acid
strength
of
OMSs,
driving
lithium
salt
establishing
strong
chemisorption
TFSI-
anions.
By
synergistically
density,
acidity,
structural
stability,
defect-engineered
Hf-MOF-QSSE
achieved
an
conductivity
1.0
mS
cm-1
at
30
°C
delivered
a
critical
current
2
mA
cm-2,
surpassing
previously
reported
MOF-QSSEs,
underscoring
pivotal
role
electrolyte
optimization.
Furthermore,
Li||LiFePO4
cells
exhibited
excellent
cycling
stability
ultrahigh
rate
capability,
retaining
93%
capacity
after
1500
cycles
10C,
Li||NCM811
maintained
specific
85
mAh
g-1
600
5C.
Journal of Materials Chemistry A,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Lanthanum
modification
and
defect
engineering
were
used
to
regulate
the
microenvironment
of
Co
in
MOF-74.
DFT
demonstrated
strong
hybridization
between
unpaired
electrons
O
explained
enhanced
2
activation
for
epoxidation.
