Critical Reviews in Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 34
Published: March 20, 2024
Optimizing
materials
and
associated
structures
for
detecting
various
environmental
gas
pollutant
concentrations
has
been
a
major
challenge
in
sensing
technology.
Semiconducting
metal
oxides
(SMOs)
fabricated
at
the
nanoscale
are
class
of
sensor
technology
which
metallic
species
functionalized
with
dopants
to
modify
their
chemiresistivity
crystalline
scaffolding
properties.
Studies
focused
on
recent
advances
sensors
utilizing
oxide
nanostructures
special
emphasis
structure-surface
property
relationships
some
typical
n-type
p-type
SMOs
efficient
detection
presented.
Strategies
enhance
performances
also
discussed.
These
material
have
several
advantages
such
as
ease
handling,
portability,
doped-based
SMO
ability
pollutants
low
temperatures.
displayed
excellent
sensitivity,
selectivity,
robustness.
In
addition,
hybrid
showed
exceptional
selectivity
CWAs
when
irradiated
visible
light
while
displaying
high
reversibility
humidity
independence.
Results
that
TiO2
surfaces
can
sense
50
ppm
SO2
presence
UV
under
operating
temperatures
298–473
K.
Hybrid
response.
For
example,
CuO–ZnO
nanoparticle
network
4:1
vol.%
CuO/ZnO
ratio
exhibited
responses
three
times
greater
than
pure
CuO
six
ZnO
toward
H2S.
This
review
provides
critical
discussion
modified
capabilities
nanoparticles
ambient
conditions,
focusing
reported
results
during
past
two
decades
sensing.
International Journal of Extreme Manufacturing,
Journal Year:
2023,
Volume and Issue:
5(2), P. 022008 - 022008
Published: March 24, 2023
Highlights
Atomic
layer
deposition
is
versatile
in
precise
design
of
heterostructure
materials.
Gas
sensing
performances
heterostructures
engineered
by
ALD
are
reviewed.
Future
developments
and
challenges
faced
ALD-designed
materials
discussed.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(44), P. 23742 - 23771
Published: Jan. 1, 2023
Metal
oxides
have
been
extensively
used
in
environmental
monitoring,
breath
analysis,
and
food
quality
assessment.
This
review
summarizes
the
effects
of
nanoscale
heterojunctions
on
enhancing
gas-sensing
performance
metal
oxide
devices.
Critical Reviews in Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 34
Published: March 20, 2024
Optimizing
materials
and
associated
structures
for
detecting
various
environmental
gas
pollutant
concentrations
has
been
a
major
challenge
in
sensing
technology.
Semiconducting
metal
oxides
(SMOs)
fabricated
at
the
nanoscale
are
class
of
sensor
technology
which
metallic
species
functionalized
with
dopants
to
modify
their
chemiresistivity
crystalline
scaffolding
properties.
Studies
focused
on
recent
advances
sensors
utilizing
oxide
nanostructures
special
emphasis
structure-surface
property
relationships
some
typical
n-type
p-type
SMOs
efficient
detection
presented.
Strategies
enhance
performances
also
discussed.
These
material
have
several
advantages
such
as
ease
handling,
portability,
doped-based
SMO
ability
pollutants
low
temperatures.
displayed
excellent
sensitivity,
selectivity,
robustness.
In
addition,
hybrid
showed
exceptional
selectivity
CWAs
when
irradiated
visible
light
while
displaying
high
reversibility
humidity
independence.
Results
that
TiO2
surfaces
can
sense
50
ppm
SO2
presence
UV
under
operating
temperatures
298–473
K.
Hybrid
response.
For
example,
CuO–ZnO
nanoparticle
network
4:1
vol.%
CuO/ZnO
ratio
exhibited
responses
three
times
greater
than
pure
CuO
six
ZnO
toward
H2S.
This
review
provides
critical
discussion
modified
capabilities
nanoparticles
ambient
conditions,
focusing
reported
results
during
past
two
decades
sensing.
