ACS Applied Electronic Materials,
Год журнала:
2023,
Номер
5(9), С. 5061 - 5073
Опубликована: Сен. 7, 2023
Mo2C/MoO3@rGO
ternary
nanocomposites
were
synthesized
by
a
hydrothermal
method,
which
can
be
applied
to
the
high-sensitivity
detection
of
low
concentration
NH3
at
room
temperature.
Compared
with
pure
MoO3
and
MoO3@rGO
sensors,
sensors
showed
significantly
improved
response
Among
them,
6%
sensor
up
0.82
for
5
ppm
time
87
s,
was
27.33
times
higher
than
that
(0.03
in
154
s)
5.86
(0.14
139
s).
It
also
has
high
repeatability,
selectivity,
good
long-term
stability,
immunity
humidity.
These
optimizations
gas-sensing
properties
material
may
attributed
ability
heterojunction
modulate
surface
carriers,
chemical
sensitization
electrocatalytic
Mo2C,
large
specific
area
carrier
mobility
rGO.
The
synergistic
effect
between
these
three
materials
allows
designed
composite
detect
trace
amounts
temperature,
making
it
possible
develop
high-performance
gas
sensors.
ACS Sensors,
Год журнала:
2022,
Номер
7(12), С. 3634 - 3643
Опубликована: Дек. 12, 2022
Polyoxometalates
(POMs)
are
a
series
of
molecular
metal
compounds
based
on
W
and
Mo
elements,
exhibiting
excellent
physical
chemical
properties.
POMs
have
been
widely
used
in
the
fields
photoelectric
materials,
catalytic
coordination
chemistry.
In
recent
years,
emerged
field
chemiresistive
gas
sensors.
They
can
work
as
electron
acceptors
improve
gas-sensing
performance
traditional
sensing
materials
by
means
capturing
electrons
from
semiconductors,
separating
produced
light
excitation
or
thermal
delaying
recombination
holes.
So
far,
highest
sensitivity
response
POMs-based
sensor
is
231
to
1
ppm
NO2
gas.
this
review,
an
overview
investigated
about
how
evolved
First,
some
years
introduced
classified.
After
that,
brief
analyses
for
each
kind
provided.
Then
we
compare
reported
sensors
different
parameters.
Finally,
future
outlooks
discussed
basis
current
developments.
This
first
comprehensive
provide
valuable
information
developing
high-performance
ACS Applied Nano Materials,
Год журнала:
2023,
Номер
6(2), С. 1027 - 1049
Опубликована: Янв. 9, 2023
Nanostructured
semiconducting
metal
oxides
(SMOs)
hold
the
potential
for
playing
a
critical
role
in
gas-sensing
applications
due
to
their
interconnected
nanograins,
large
surface
area,
and
shorter
diffusion
length.
The
rational
introduction
of
ubiquitous
porosity
SMOs
can
enhance
gas/air
as
well
accessibility
nanograins
reactive
sites.
Although
much
work
has
been
researched
adopting
highly
porous
nanostructured
gas
sensing,
no
comprehensive
review
on
control
yet
presented.
In
this
review,
latest
methods
SMOs,
structural
properties,
results
are
reported.
Finally,
perspective
future
directions
provided
further
development
research
SMO-based
nanomaterials.
ACS Sensors,
Год журнала:
2024,
Номер
9(6), С. 2728 - 2776
Опубликована: Июнь 3, 2024
The
escalating
development
and
improvement
of
gas
sensing
ability
in
industrial
equipment,
or
"machine
olfactory",
propels
the
evolution
sensors
toward
enhanced
sensitivity,
selectivity,
stability,
power
efficiency,
cost-effectiveness,
longevity.
Two-dimensional
(2D)
materials,
distinguished
by
their
atomic-thin
profile,
expansive
specific
surface
area,
remarkable
mechanical
strength,
tunability,
hold
significant
potential
for
addressing
intricate
challenges
sensing.
However,
a
comprehensive
review
2D
materials-based
applications
is
absent.
This
delves
into
recent
advances
this
field
highlights
machine
olfaction.
main
content
encompasses
scenario
characteristics,
fundamental
classification,
enhancement
methods,
underlying
mechanisms,
diverse
applications.
Additionally,
associated
with
transitioning
material
from
laboratory
to
industrialization
commercialization
are
addressed,
future-looking
viewpoints
on
next-generation
intelligent
sensory
systems
sector
prospected.
