Chemical Physics Reviews,
Journal Year:
2023,
Volume and Issue:
4(2)
Published: May 22, 2023
Gas
sensors
based
on
chemiresistive
technology
are
attractive
for
their
small
size,
low-cost
fabrication,
predictable
electrical
properties,
and
compatibility
with
electronic
circuits.
They
have
various
applications
from
health
safety
to
energy
efficiency
emissions
monitoring.
Despite
exploring
many
gas-sensing
materials
detect
different
gases
the
above-mentioned
applications,
these
limitations
such
as
poor
selectivity,
high
limit
of
detection,
reversibility,
operating
temperature,
stability
that
restrict
implementation
in
real-time
applications.
To
address
improve
sensing
performance
toward
target
gases,
approaches
been
developed.
In
this
regard,
an
important
aspect
is
optimize
device
architecture
by
selecting
appropriate
material,
electrode
structure
design.
This
review
discusses
advancements
novel
materials,
metal-organic
frameworks
(MOFs),
MXenes,
graphitic
carbon
nitride
(g-C3N4),
hexagonal
boron
(h-BN),
group
III–VI
semiconductors,
phosphorene,
black
phosphorus,
metal
ferrites,
entropy
oxides.
addition,
impact
including
platinum
(Pt),
gold
(Au),
silver
(Ag),
chromium
(Cr),
indium
tin
oxide
(ITO),
aluminum
(Al),
its
structures
design
parameters
performance.
The
covered
head-to-head,
interdigitated,
fractal,
laser-induced
graphene.
Finally,
highlights
summary,
challenges,
future
perspectives
sensors.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(29)
Published: May 1, 2024
Neuromorphic
olfactory
systems
have
been
actively
studied
in
recent
years
owing
to
their
considerable
potential
electronic
noses,
robotics,
and
neuromorphic
data
processing
systems.
However,
conventional
gas
sensors
typically
the
ability
detect
hazardous
levels
but
lack
synaptic
functions
such
as
memory
recognition
of
accumulation,
which
are
essential
for
realizing
human-like
sensory
system.
In
this
study,
a
seamless
architecture
system
capable
detecting
memorizing
present
level
accumulation
status
nitrogen
dioxide
(NO
Nanomaterials,
Journal Year:
2023,
Volume and Issue:
13(15), P. 2188 - 2188
Published: July 27, 2023
Gas-sensing
technology
has
gained
significant
attention
in
recent
years
due
to
the
increasing
concern
for
environmental
safety
and
human
health
caused
by
reactive
gases.
In
particular,
spinel
ferrite
(MFe2O4),
a
metal
oxide
semiconductor
with
structure,
emerged
as
promising
material
gas-sensing
applications.
This
review
article
aims
provide
an
overview
of
latest
developments
spinel-ferrite-based
gas
sensors.
It
begins
discussing
mechanism
sensors,
which
involves
interaction
between
target
molecules
surface
sensor
material.
The
unique
properties
ferrite,
such
its
high
area,
tunable
bandgap,
excellent
stability,
contribute
capabilities.
then
delves
into
advancements
sensors
based
on
focusing
various
aspects
microstructures,
element
doping,
heterostructure
materials.
microstructure
can
be
tailored
enhance
performance
controlling
factors
grain
size,
porosity,
area.
Element
incorporating
transition
ions,
further
modifying
electronic
structure
chemistry
Additionally,
integration
other
semiconductors
configurations
shown
potential
improving
selectivity
overall
sensing
performance.
Furthermore,
suggests
that
combination
selectivity,
at
room
or
low
temperatures.
is
particularly
important
practical
applications
where
real-time
accurate
detection
crucial.
conclusion,
this
highlights
provides
insights
field.
materials
optimization
parameters
offer
opportunities
development
highly
efficient
reliable
devices
early
warning
systems.
