Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
Abstract
Zinc‐ion
capacitors
(ZICs)
are
emerging
as
a
compelling
choice
for
energy
storage
in
future,
promising
high
power
and
densities
coupled
with
eco‐friendly
characteristics.
This
work
presents
novel
approach
to
enhance
the
performance
of
ZICs
by
employing
one‐step
solvothermal
synthesis
growth
V‐MOF
on
surface
V
2
CT
X
‐MXene,
followed
annealing
fabricate
3D
cross‐linked
VO
/V
‐MXene‐x(VO
/MXene‐x)
composite.
The
unique
structure
demonstrates
excellent
conductivity
redox
reaction
activity,
which
significantly
shortens
Zn
2+
diffusion
path.
Moreover,
intertwined
crystalline‐amorphous
efficiently
suppresses
lattice
volume
expansion
during
(de)intercalation.
Density
functional
theory
(DFT)
reveals
that
amorphous
O
5
enhances
conductivity,
lowers
capture
barrier,
improves
charge
transfer
efficiency.
introduction
oxygen
vacancies
further
electronic
transport.
/MXene‐4
composite
exhibits
specific
capacity
336.39
mAh
g
−1
at
1
A
,
maintaining
213.06
10
indicating
outstanding
rate
performance,
along
an
density
356.27
Wh
kg
1280
W
.
offers
insights
design
electrode
materials
feature
phases,
providing
valuable
into
ion
transport
mechanisms
strategies
kinetics.
Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 26, 2025
L-Tryptophan
(l-Trp)
is
an
essential
amino
acid
that
critical
to
human
health
and
biosynthetic
processes.
Hence,
developing
a
simple
sensitive
l-Trp
sensor
of
great
importance.
In
this
study,
Ce-doped
MOF-199/Ti3C2TX
MXene
nanocomposite
was
developed
detect
l-Trp.
Density
functional
theory
(DFT)
calculation
suggested
the
doping
Ce
can
effectively
enhance
electronic
structure
MOF-199
improve
its
adsorption
capacity
for
Additionally,
integration
with
Ti3C2TX
substantially
improves
conductivity
MOFs,
resulting
in
enhanced
electrocatalytic
activity
material.
The
exhibits
wide
linear
range
(0.5-156.5
μM),
low
limit
detection
(0.18
excellent
selectivity.
Further,
possesses
reproducibility,
repeatability,
long-term
stability.
It
has
been
successfully
used
milk
recoveries
(99.66-104.40%).
