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.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 10, 2025
Abstract
Defect‐engineering‐involved
metal‐organic
frameworks
(MOFs)
have
been
highly
valued
in
many
fields
due
to
the
enhanced
porosity
and
abundant
active
sites,
but
how
systematic
modulation
on
deficiency
influencing
fluorescent
sensing
performance
is
still
its
infancy.
Here,
defect‐engineering
of
MOF‐525
used
modulate
exposure
zirconium
(Zr)
clusters
sieving
capability
inner
channels,
enabling
precise
phosphoryl
fluoride
nerve
agents
with
specific
chemical
activity
molecular
dimensions.
Controllable
defects
transformed
localized
emission
porphyrin
into
ligand‐metal
charge
transferring
(LMCT)
gradual
loss
ligand
molecules,
which
interrupted
upon
coordination
agents,
triggering
a
red
turn‐on
fluorescence.
Thus,
defective
60%
effectively
discriminates
(e.g.,
sarin,
soman)
from
similar
substances
tabun,
venomous
agent
X)
synergistic
effect
dimension.
It
exhibits
sensitive
(0.96
n
m
/3.8
ppb),
rapid
(<1
s)
response
toward
target
robust
environmental
interference
acidic,
humid
common
substances.
This
work
enhances
understanding
MOFs
correpsonding
luminescent
behavior,
paving
new
avenue
for
strategy
trace
real
vapor.
Deleted Journal,
Год журнала:
2024,
Номер
1(2), С. 181 - 206
Опубликована: Авг. 4, 2024
Abstract
Metal–organic
frameworks
(MOFs)
have
emerged
as
promising
materials
in
the
realm
of
electrocatalysis
due
to
their
high
surface
area,
tunable
porosity,
and
versatile
chemical
functionality.
However,
practical
application
has
been
hampered
by
inherent
limitations
such
low
electrical
conductivity
a
limited
number
active
metal
sites.
Researchers
addressed
these
challenges
through
various
strategies,
including
enhancing
incorporating
conductive
nanoparticles,
modifying
structure
composition
MOFs
replacing
nodes
functionalizing
linkers,
preparing
catalysts
thermal
processes
decarburization
conversion
into
oxides,
phosphides
(MPs),
sulfides
(MSs).
This
review
provided
comprehensive
summary
strategies
that
were
employed
enhance
electroactivity
for
improved
electrocatalytic
performance
recent
years.
It
also
explored
future
directions
potential
innovations
design
synthesis
MOF‐based
electrocatalysts,
offering
valuable
insights
advancing
sustainable
energy
technologies.
Analytical Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 23, 2025
Nanozymes
are
attracting
widespread
attention
as
effective
alternatives
to
overcome
the
limitations
of
natural
enzymes.
However,
their
catalytic
performance
is
unsatisfactory
due
low
activity
and
specificity.
In
this
work,
an
efficient
metal-organic
framework
(MOF)
nanozyme
mimicking
active
centers
enzymes
has
been
developed
its
catalysis
mechanism
thoroughly
investigated.
The
partial
histidine-
arginine-doped
Fe-MOF
(HA
Fe-MOF)
demonstrated
activate
structure
reconstruction
with
abundant
oxygen
vacancy
generation,
which
promotes
binding
capacity
HA
Fe-MOF.
Fe
sites
in
act
for
decomposition
H2O2.
Intriguingly,
histidine
arginine
can
form
hydrogen
bonds
H2O2
observed
enzymes,
constituting
a
unique
microenvironment
that
increases
local
concentration
Benefiting
from
establishment
such
enzyme-mimicking
centers,
exhibits
high
peroxidase-like
specificity
activity.
addition,
holds
great
potential
detecting
uranyl
ions
limit
detection
0.012
μM,
surpassing
most
reported
nanozymes.
This
work
achieves
rational
design
highly
specific
nanozymes
by
structure-selectivity
relationship
peroxidases,
provides
new
insights
into
advanced
configurations.
