ACS Applied Electronic Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 12, 2024
In
this
paper,
mace-like
In2O3@ZnO
microtubes
were
obtained
from
MIL-68/ZIF-8
as
a
precursor
via
simple
hydrothermal
and
template
method.
The
resulting
microtubules
characterized
analyzed
by
series
of
methods
(XPS,
SEM,
TEM,
XRD).
Compared
to
pure
In2O3
microtubes,
the
In-2Zn
(In2O3:ZnO
2:1)
sensor
was
found
have
higher
response
(6.67)
10,000
ppm
H2
at
room
temperature
(25
°C)
faster
response/recovery
time
(178/338
s).
improvement
hydrogen
sensing
performance
mainly
attributed
porous
structure
composite
large
specific
surface
area
due
abundant
nanowires
grown
on
microbars.
Besides,
formation
an
n-n
heterojunction
interface
ZnO
also
important
factor
for
improvement.
property
indicated
that
nanocomposite
promising
detection
temperature.
Journal of environmental chemical engineering,
Год журнала:
2024,
Номер
12(2), С. 112144 - 112144
Опубликована: Фев. 9, 2024
The
advancement
of
industry
and
the
hastening
urbanization
have
led
to
serious
problems
associated
with
emanation
various
harmful
lethal
gases,
which
are
a
threat
humankind.
Therefore,
fabrication
highly
sensitive
selective
sensors
for
monitoring
these
gases
is
desirable.
Due
its
stability,
sensitivity,
selectivity
in
general
environment,
indium
oxide
(In2O3)
has
attracted
considerable
attention
gas
sensing.
Thus,
current
review
discusses
latest
research
made
over
last
five
years
on
In2O3-based
sensors.
influence
environmental
pollutants,
such
as
VOCs,
NOX,
CO,
O3,
NH3,
SO2
environment
human
life
were
discussed.
Among
synthesis
methods,
hydrothermal
approach
been
most
used
preparation
based
In2O3.
drawbacks
challenges
linked
In2O3
(5)
years,
showed
that
functioning
at
higher
temperatures.
This
lack
commercialization
because
reliability
issues
long-term
stability
drift.
So
far,
noble
metals
doped-In2O3
shown
promising
advantages
room
temperature
operation,
could
be
useful
reaching
next
generation
intelligent
from
micro/nanomaterials
era
self-powered,
artificially
system
their
integration
smartphones.
Bluetooth
modules
can
make
it
feasible
wirelessly
monitor
concentration
different
without
need
an
external
power
source
transmit
information
via
smartphone.
would
further
suitable
wireless
signal
detection,
Internet
Things,
data
processing,
particularly
machine
learning,
aid
