Nanomaterials,
Год журнала:
2024,
Номер
14(21), С. 1725 - 1725
Опубликована: Окт. 29, 2024
Hydrogen
sulfide
(H2S)
is
a
highly
toxic
and
corrosive
gas
commonly
found
in
industrial
emissions
natural
processing,
posing
serious
risks
to
human
health
environmental
safety
even
at
low
concentrations.
The
early
detection
of
H2S
therefore
critical
for
preventing
accidents
ensuring
compliance
with
regulations.
This
study
presents
the
development
porous
ZnO/SnO2-nanocomposite
sensors
tailored
ultrasensitive
sub-ppb
levels.
Utilizing
screen-printing
method,
we
fabricated
five
different
sensor
compositions—ranging
from
pure
SnO2
ZnO—and
characterized
their
structural
morphological
properties
through
X-ray
diffraction
(XRD)
scanning
electron
microscopy
(SEM).
Among
these,
SnO2/ZnO
composition-weight
ratio
3:4
demonstrated
highest
response
325
°C,
achieving
limit
0.14
ppb.
was
evaluated
detecting
concentrations
ranging
5
ppb
500
under
dry,
humid
air
N2
conditions.
relative
concentration
error
carefully
calculated
based
on
analytical
sensitivity,
confirming
sensor’s
precision
measuring
Our
findings
underscore
significant
advantages
mixture
nanocomposites
enhancing
offering
promising
applications
monitoring
safety.
research
paves
way
advancement
effective
capable
operating
diverse
conditions
high
accuracy.
Nanomaterials,
Год журнала:
2024,
Номер
14(10), С. 841 - 841
Опубликована: Май 10, 2024
A
rapid
and
accurate
monitoring
of
hazardous
formaldehyde
(HCHO)
gas
is
extremely
essential
for
health
protection.
However,
the
high-power
consumption
humidity
interference
still
hinder
application
HCHO
sensors.
Hence,
zeolitic
imidazolate
framework-8
(ZIF-8)-loaded
Pt-NiO/In
ECS Journal of Solid State Science and Technology,
Год журнала:
2023,
Номер
12(10), С. 101004 - 101004
Опубликована: Окт. 1, 2023
Novel
Co
3
O
4
/MXene
nanocomposite
electrode
has
been
synthesized
through
an
innovative
co-precipitation
method.
Nanocomposite
a
structure
similar
to
layered
framework,
with
the
cobalt-cobalt
(Co
)
nanosheets
exhibiting
dangling
lattice
fringe-spacing.
From
XRD,
average
crystallite
size
of
about
4.64
nm
obtained.
SEM
reveals
grain
1.98
whereas
EDS
confirms
presence
all
constituent
elements
within
nanocomposite.
Reduced
bandgap
comparable
MXene
evident
semiconducting
nature
electrostatics
nanosheet
onto
surfaces
demonstrated
by
EIS
resulting
electron
transfer
rate
constant
value
7.098
×
10
−10
cms
−1
in
0.1
M
H
2
SO
acidic
electrolyte
supporting
maximum
capacitance
948.9
F
g
at
mV
s
scan
rate.
These
findings
suggested
that
this
research
not
only
advances
engineering
but
also
empowers
various
energy
storage
applications
from
portable
electronics
renewable
systems.
