ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(22), С. 28928 - 28937
Опубликована: Май 25, 2024
Two-dimensional
(2D)
mesoporous
transition
metal
oxides
are
highly
desired
in
various
applications,
but
their
fast
and
low-cost
synthesis
remains
a
great
challenge.
Herein,
Maillard
reaction
inspired
microexplosion
approach
is
applied
to
rapidly
synthesize
ultrathin
2D
tin
oxide
(mSnO2).
During
the
between
granular
ammonia
nitrate
with
melanoidin
at
high
temperature,
organic
species
can
be
carbonized
expanded
due
instantaneous
release
of
gases,
thus
producing
carbonaceous
templates
rich
functional
groups
effectively
anchor
SnO2
nanoparticles
on
surface.
The
subsequent
removal
via
calcination
air
results
formation
mSnO2
confinement
effect
templates.
Pd
controllably
deposited
surface
situ
reduction,
forming
Pd/mSnO2
nanocomposites
thicknesses
6–8
nm.
Owing
unique
structure
oxygen
defects
exposed
metal–metal
interfaces,
exhibits
excellent
sensing
performance
toward
acetone
sensitivity,
short
response
time,
good
selectivity
under
low
working
temperature
(100
°C).
This
convenient
strategy
opens
up
possibility
constructing
porous
materials
for
applications
including
high-performance
gas
sensors.
Sensors,
Год журнала:
2025,
Номер
25(3), С. 655 - 655
Опубликована: Янв. 23, 2025
The
development
of
reliable,
highly
sensitive
hydrogen
sensors
is
crucial
for
the
safe
implementation
hydrogen-based
energy
systems.
This
paper
proposes
a
novel
way
to
enhance
performance
through
integrating
Pd-SnO2
nanofilms
on
substrate
with
silicon
nanowires
(SiNWs).
samples
were
fabricated
via
simple
and
cost-effective
process,
mainly
consisting
metal-assisted
chemical
etching
(MaCE)
electron
beam
evaporation.
Structural
morphological
characterizations
conducted
using
scanning
microscopy
(SEM)
X-ray
photoelectron
spectroscopy
(XPS).
experimental
results
showed
that,
compared
those
without
SiNW
structure
or
decorative
Pd
nanoparticles,
Pd-decorated
SnO2
nanofilm
integrated
substrates
exhibited
significantly
improved
sensing
performance,
achieving
response
time
9
s
at
300
°C
1.5%
H2
detection
limit
1
ppm.
enhanced
can
be
primarily
attributed
large
surface
area
provided
by
SiNWs,
efficient
spillover
effect
facilitated
abundant
oxygen
vacancies
present
nanofilm,
as
well
Schottky
barrier
formed
heterojunction
interface
between
SnO2.
study
demonstrates
promising
approach
developing
high-performance
characterized
ultrafast
times
ultralow
limits.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(5), С. 2703 - 2703
Опубликована: Фев. 26, 2024
Within
the
framework
of
plant
biostimulation,
a
pivotal
role
is
played
by
achievement
low-cost,
easily
prepared
nanoparticles
for
priming
purposes.
Therefore,
in
this
report,
two
different
synthetic
strategies
are
described
to
engineer
zinc
oxide
with
an
inulin
coating.
In
both
protocols,
i.e.,
two-step
and
gel-like
one-pot
highly
pure
ZnO
kernel
obtained
when
reaction
carried
out
at
T
≥
40
°C,
as
ascertained
XRD
ATR/FTIR
studies.
However,
uniformly
dispersed,
homogeneous
coating
achieved
primarily
temperatures,
60
°C
employed
phases
step-wise
synthesis.
addition,
binding
mechanism,
complexation,
occurs
case.
When
process
employed,
high
degree
coverage
fructan
attained,
leading
micrometric
coated
aggregates
nanometric
particles,
revealed
SEM
investigations.
All
NPs
from
synthesis
feature
electronic
bandgaps
3.25-3.30
eV
range
line
previous
studies,
whereas
extensive
causes
remarkable
0.4
decrease
bandgap.
Overall,
global
analysis
investigations
indicates
that
samples
synthesized
best
suited
biostimulation.
Proof-of-principle
assays
upon
