Journal of Nanoelectronics and Optoelectronics,
Год журнала:
2024,
Номер
19(11), С. 1156 - 1164
Опубликована: Ноя. 1, 2024
As
the
demand
for
selective
and
sensitive
gas
sensors
continues
to
escalate,
development
of
novel
materials
with
enhanced
performance
becomes
increasingly
imperative.
The
present
investigation
delves
into
fabrication
implementation
two-dimensional
cobalt
oxide
(Co
3
O
4
)
nanostructures
as
highly
proficient
discerning
identification
hydrogen
sulfide
(H
2
S)
within
intricate
environmental
circumstances.
distinct
configuration
Co
,
characterized
by
its
substantial
surface-to-volume
ratio
abundant
accessible
active
sites,
markedly
augments
adsorption
reaction
dynamics,
resulting
in
exceptional
sensitivity
selectivity
toward
H
S
over
other
potentially
confounding
gases.
Extensive
characterization
methodologies,
encompassing
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
transmission
(TEM),
corroborate
successful
synthesis
well-defined
nanosheets.
exhibited
optimal
detection
at
250
°C,
demonstrating
significant
(Response
=
214.45)
fast
response
recovery
times
(16.85
s
46.93
s,
respectively).
Its
was
further
validated
through
concentration-dependent
studies,
which
showed
high
accuracy
even
low
concentrations
(0.3–50
ppm).
sensor
also
displayed
excellent
gases,
minimal
interference
from
humidity,
maintained
stability
during
cyclic
exposure
long-term
operation
30
days.
These
findings
highlight
this
material
a
promising
due
superior
metrics.
incorporation
these
nanosheets
apparatus
offers
propitious
strategy
real-world
applications,
such
surveillance
industrial
safety
systems.
Nanomaterials,
Год журнала:
2025,
Номер
15(4), С. 303 - 303
Опубликована: Фев. 16, 2025
The
development
of
high-performance
carbon
monoxide
(CO)
sensors
is
essential
for
protecting
human
health,
ensuring
industrial
safety,
and
maintaining
environmental
well-being.
Among
various
types
sensors,
chemiresistive
exhibit
considerable
promise
real-time
applications
due
to
their
operational
capabilities.
To
achieve
high
performances
this
review
emphasizes
enhancement
strategies,
encompassing
the
refinement
sensing
materials,
augmentation
sensor
structures,
optimization
gas
recognition
algorithms.
Specifically,
modification
techniques
which
include
construction
heterostructures,
decoration
with
noble
metals,
surface
functionalization,
hetero-element-doping,
morphology
engineering,
are
delved
into
comprehensively.
This
provides
insights
rational
design
cost-effective
CO
sensors.
Chemosensors,
Год журнала:
2025,
Номер
13(3), С. 100 - 100
Опубликована: Март 9, 2025
In
the
past
few
decades,
metal–organic
frameworks
(MOFs)
have
been
widely
employed
for
a
variety
of
applications
such
as
sensors,
adsorption,
and
catalysis.
MOFs
excellent
gas
sensing
properties
large
specific
surface
area
which
makes
them
suitable
candidate
determination
toxic
hazardous
gases.
Some
reports
also
shown
that
integration
with
other
materials
graphene,
metal
oxides,
or
conducting
polymers
may
further
improve
their
performance.
MOF-derived
demonstrated
properties.
this
review
article,
we
compiled
recent
progress
in
MOFs,
MOF-based
composites,
applications.
We
believe
present
article
benefit
readers
who
are
planning
working
on
development
sensors.
