Nano-Micro Letters,
Journal Year:
2025,
Volume and Issue:
17(1)
Published: April 24, 2025
Abstract
Photothermoelectric
(PTE)
photodetectors
with
self-powered
and
uncooled
advantages
have
attracted
much
interest
due
to
the
wide
application
prospects
in
military
civilian
fields.
However,
traditional
PTE
lack
of
mechanical
flexibility
cannot
operate
independently
without
test
instrument.
Herein,
we
present
a
flexible
photodetector
capable
dual-mode
output,
combining
electrical
optical
signal
generation
for
enhanced
functionality.
Using
solution
processing,
high-quality
MXene
thin
films
are
assembled
on
asymmetric
electrodes
as
photosensitive
layer.
The
geometrically
electrode
design
significantly
enhances
responsivity,
achieving
0.33
mA
W
−1
under
infrared
illumination,
twice
that
symmetrical
configuration.
This
improvement
stems
from
optimized
photothermal
conversion
an
expanded
temperature
gradient.
device
maintains
stable
performance
after
300
bending
cycles,
demonstrating
excellent
flexibility.
A
new
energy
pathway
has
been
established
by
coupling
thermochromic
composite
materials,
leading
real-time
visualization
invisible
radiation.
Leveraging
this
functionality,
demonstrate
first
human–machine
collaborative
imaging
system,
wherein
arrays
synchronously
generate
human-readable
pattern
machine-readable
pattern.
Our
study
not
only
provides
functional
integration
photodetectors,
but
also
sets
benchmark
optoelectronics.
Biosensors,
Journal Year:
2025,
Volume and Issue:
15(2), P. 107 - 107
Published: Feb. 13, 2025
MXene
is
a
new
family
of
two-dimensional
nanomaterials
with
outstanding
electrical
conductivity,
tunable
structure,
biocompatibility,
and
large
surface
area.
Thanks
to
these
unique
physicochemical
properties,
has
been
used
for
constructing
electrochemical
sensors
(MECSens)
excellent
performance.
In
particular,
the
abundant
termination
can
contribute
greatly
enhancing
analytical
sensitivity
selectivity
MECSens.
Recently,
MECSens
have
widely
applied
in
many
fields
including
clinical
diagnosis,
infectious
disease
surveillance,
food
security.
However,
not
all
materials
are
suitable
building
sensors.
this
article,
we
present
an
overview
different
that
developed
so
far.
We
begin
short
summary
preparation
characterization
Subsequently,
performance,
detection
strategies,
application
scenarios
classified
briefly
discussed.
The
article
ends
conclusion
future
perspectives.
hope
will
be
helpful
designing
activity
analysis.
Chemistry of Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 4, 2024
The
interface
electronic
structure
of
heterogeneous
catalysts
can
be
modulated
by
changing
the
surface
coordination
configuration,
which
is
crucial
to
their
catalytic
activity.
Herein,
a
phosphorus-grafted
Ti3C2Tx
MXene
platform
anchored
with
an
MoS2
nanoflake
heterojunction
electrocatalyst
was
assembled
through
simple
phosphorus-hydrothermal
method.
An
charge
"bridge"
has
been
created
grafting
uniform
P
atoms
coordinated
O
(P-Ti3C2Tx),
resulting
in
charge-transfer
channel
between
P-Ti3C2Tx
and
MoS2.
Based
on
ultrafast
transient
absorption
spectroscopy,
fastest
electron-transfer
kinetics
from
(1.7
ps)
slowest
electron–hole
recombination
speed
(28
were
obtained
over
MoS2@P-Ti3C2Tx
than
those
MoS2@O-Ti3C2Tx
MoS2@OP-Ti3C2Tx.
Benefiting
lower
carrier
transport
activation
energy,
exhibited
stirring
electrocatalytic
activity
toward
hydrogen
evolution
all-pH
media,
delivered
three
low
overpotentials
48.6,
63.2,
70.5
mV
at
10
mA
cm–2
alkaline,
acid,
neutral
respectively.
Grafting
atomic
scale
create
proposes
new
strategy
design
efficient
pH-universal
electrocatalyst.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 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.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 19, 2025
Abstract
Applying
electrochemical
nitrate
reduction
reaction
(NO
3
RR)
to
produce
ammonia
offers
a
sustainable
alternative
the
energy‐intensive
Haber‐Bosch
process,
which
is
crucial
for
clean
energy
and
agricultural
applications.
While
2D
MXenes
hold
great
promise
as
electrocatalysts
NO
RR,
their
application
production
remains
underexplored.
This
study
combines
experimental
theoretical
approaches
evaluate
catalytic
performance
of
series
with
different
central
metal
atoms
RR.
Among
materials
studied
(Ti
C
2
T
x
,
Ti
CNT
CT
V
Cr
Nb
Ta
),
‐based
exhibit
superior
faradaic
efficiency,
yield
rate,
stability.
Density
functional
theory
calculations
offer
further
insights
explaining
structure‐activity‐based
observations.
research
establishes
foundation
future
studies
aimed
at
leveraging
green
synthesis
ammonia.
