ACS Sensors,
Год журнала:
2024,
Номер
9(1), С. 292 - 304
Опубликована: Янв. 12, 2024
As
a
common
environmental
pollutant
and
an
important
breath
biomarker
for
several
diseases,
it
is
essential
to
develop
hydrogen
sulfide
gas
sensor
with
low-ppb
level
detection
limit
prevent
harmful
exposure
allow
early
diagnoses
of
diseases
in
low-resource
settings.
Gold
doped/decorated
tungsten
trioxide
(Au-WO3)
nanofibers
various
compositions
crystallinities
were
synthesized
optimize
H2S-sensing
performance.
Systematically
experimental
results
demonstrated
the
ability
detect
1
ppb
H2S
response
value
(Rair/Rgas)
2.01
using
5
at
%
Au-WO3
average
grain
sizes
around
15
nm.
Additionally,
energy
barrier
difference
sensing
materials
air
nitrogen
(ΔEb)
power
law
exponent
(n)
determined
be
0.36
eV
0.7,
respectively,
450
°C
indicating
that
O–
predominately
ionic
oxygen
species
adsorption
significantly
altered
Schottky
between
grain.
Such
quantitative
analysis
provides
comprehensive
understanding
mechanism.
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Июнь 13, 2023
Highly
efficient
gas
sensors
able
to
detect
and
identify
hazardous
gases
are
crucial
for
numerous
applications.
Array
of
conventional
single-output
is
currently
limited
by
problems
including
drift,
large
size,
high
cost.
Here,
we
report
a
sensor
with
multiple
chemiresistive
potentiometric
outputs
discriminative
detection.
Such
applicable
wide
range
semiconducting
electrodes
solid
electrolytes,
which
allows
tailor
optimize
the
sensing
pattern
tuning
material
combination
conditions.
The
performance
boosted
equipping
mixed-conducting
perovskite
electrode
reverse
polarity.
A
conceptual
dual
sensitive
achieves
superior
three-dimensional
(sub)ppm
discrimination
humidity
seven
(2-Ethylhexanol,
ethanol,
acetone,
toluene,
ammonia,
carbon
monoxide,
nitrogen
dioxide),
enables
accurate
early
warning
fire
hazards.
Our
findings
offer
possibilities
design
simple,
compact,
inexpensive,
highly
multivariate
sensors.
Journal of Materials Chemistry C,
Год журнала:
2023,
Номер
11(12), С. 3906 - 3925
Опубликована: Янв. 1, 2023
The
most
extensively
explored
gas
sensors
are
metal
oxide
semiconductor
(MOS)
materials
owing
to
their
high
selectivity,
stability,
cost-effectiveness,
and
simple
synthesis
techniques.
The Chemical Record,
Год журнала:
2023,
Номер
24(1)
Опубликована: Май 30, 2023
In
this
approach,
zinc
oxide
(ZnO)
is
a
multipurpose
substance
with
remarkable
characteristics
such
as
high
sensitivity,
large
specific
area,
non-toxicity,
excellent
compatibility,
and
isoelectric
point,
which
make
it
attractive
for
discussion
some
limitations.
It
the
most
favorable
possible
option
collection
of
nanostructures
in
terms
structure
their
characteristics.
The
development
numerous
ZnO
nanostructure-based
electrochemical
sensors
biosensors
used
health
diagnosis,
pharmaceutical
evaluation,
food
hygiene,
contamination
environment
monitoring
described,
well
production
nanostructures.
Nanostructured
has
good
chemical
temperature
durability
an
n-type
semiconducting
material,
making
useful
wide
range
uses,
from
luminous
materials
to
supercapacitors,
batteries,
solar
cells,
photocatalysis,
biosensors,
medicinal
devices,
more.
When
compared
bulk
materials,
nanosized
have
both
higher
rate
disintegration
solubility.
Furthermore,
nanoparticles
are
regarded
top
contenders
due
strong
behaviors
electron
transmission
impact
many
factors,
including
selectivity,
detection
limit,
strength,
structures,
arrangements,
respective
functioning
processes,
been
investigated.
This
study
concentrated
substantial
amount
its
attention
on
recent
advancements
that
made
ZnO-based
nanoparticles,
composites,
modified
use
application
areas
energy
storage
conversion
devices
biological
applications.
Supercapacitors,
Li-ion
dye-sensitized
medicinal,
systems
studied.
constantly
analyzed
advantages
life
science
