Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(14), P. 1188 - 1188
Published: July 12, 2024
The
efficient
detection
of
n-butanol,
which
is
in
demand
for
highly
sensitive
materials,
essential
multiple
applications.
A
nonaqueous
method
was
applied
to
prepare
NiFe2O4
nanoparticles
(NPs)
using
benzyl
alcohol
as
a
solvent,
shows
size
7.9
±
1.6
nm
and
large
surface
area
82.23
m2/g.
To
further
improve
the
sensing
performance
Pd/PdO
functionalization
sensitized
with
NPs.
Gas
results
demonstrate
that
Pd/PdO-NiFe2O4
exhibits
an
enhanced
response
36.9
300
ppm
n-butanol
fast
recovery
time
(18.2/17.6
s)
at
260
°C.
Furthermore,
Pd/PdO-NiFe2O4-based
sensor
possesses
good
linear
relationship
between
responses
concentration
from
1
1000
ppm,
great
selectivity
against
other
volatile
organic
compounds
(VOCs).
excellent
enhancement
attributed
catalytic
effects
Pd/PdO,
increase
oxygen
vacancies,
formation
heterojunction
PdO
NiFe2O4.
Thus,
this
study
offers
effective
route
synthesis
Pd/PdO-functionalized
NPs
achieve
performance.
Small,
Journal Year:
2025,
Volume and Issue:
21(11)
Published: Feb. 16, 2025
Abstract
2D
metal
carbides/nitrides
(MXenes)
have
attracted
considerable
interest
in
NH
3
sensing
due
to
their
high
electrical
conductivity
and
abundant
terminal
groups.
However,
the
strong
interlayer
interactions
between
MXene
nanosheets
result
challenges
related
recovery
rapid
response
decay
MXene‐based
sensors.
Here,
a
one‐step
hydrothermal
strategy
is
developed
that
anchors
Zn
atoms
grows
ZnO
polycrystals
on
Ti
vacancies
of
C
2
T
x
layers,
forming
sandwich‐structured
ZnO/Ti
heterojunction.
At
room
temperature,
sensitivity
remarkable
45‐fold
higher
than
,
with
low
detection
limit
138
ppb
time
39
s.
Furthermore,
heterojunction
exhibits
exceptional
long‐term
stability,
maintaining
consistent
over
21
days.
The
results
confirm
situ
intercalation
effectively
solves
problem
substrates
by
completely
exfoliating
nanosheets.
Meanwhile,
room‐temperature
performance
speed
enhanced
electron
conduction.
This
straightforward
effective
route
for
exfoliation
layers
promises
expanded
use
material
heterojunctions
applications.
