Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 28, 2024
Abstract
This
study
presents
an
acetylene
gas
sensor
capable
of
in
situ
monitoring
transformer
oils.
utilizes
carbon
nanotubes
(CNTs)
embedded
polyimide
(PI)
synthesized
by
floating
catalyst
chemical
vapor
deposition.
Unlike
conventional
sensors
that
target
hydrocarbon
gases
dissolved
oil
and
measure
the
extracted
from
oil,
proposed
CNT‐PI
detects
within
real
time.
The
PI
embedding
technique
effectively
anchors
shields
CNT
network
against
fluidic
damage,
ensuring
stable
sensing
performance
over
6
months,
even
under
friction
stress
caused
convection.
Decorating
CNTs
with
gold
nanoparticles
further
enhances
sensitivity
response
sensor.
achieves
a
high
(10.5%
at
30
ppm)
fast
response/recovery
times
(28
s/77
s),
Furthermore,
demonstrates
good
(10.4%
moderate
(444
s/670
s)
medium,
which
qualifies
for
industrial
applications.
Additionally,
CNT‐PI‐based
heater
is
integrated
into
as
multilayer
component,
maintaining
optimal
operating
temperature
90
°C.
consistent
gas‐sensing
after
10,000
bending
cycles
exhibits
superior
characteristics,
indicating
its
compatibility
various
forms
transformers.
Materials,
Год журнала:
2025,
Номер
18(2), С. 451 - 451
Опубликована: Янв. 19, 2025
Hydrogen
has
emerged
as
a
prominent
candidate
for
future
energy
sources,
garnering
considerable
attention.
Given
its
explosive
nature,
the
efficient
detection
of
hydrogen
(H2)
in
environment
using
H2
sensors
is
paramount.
Chemoresistive
sensors,
particularly
those
based
on
noble-metal-decorated
metal
oxide
semiconductors
(MOSs),
have
been
extensively
researched
owing
to
their
high
responsiveness,
low
limits,
and
other
favorable
characteristics.
Despite
numerous
recent
studies
reviews
reporting
advancements
this
field,
comprehensive
review
focusing
rational
design
sensing
materials
enhance
overall
performance
chemoresistive
MOFs
lacking.
This
aims
address
gap
by
examining
principles,
applications,
challenges
with
specific
focus
Pd-decorated
Pt-decorated
MOSs-based
materials.
The
observations
explanations
strategies
employed
literature,
within
last
three
years,
analyzed
provide
insights
into
latest
research
directions
developments
domain.
understanding
essential
designing
fabricating
highly
sensors.
Langmuir,
Год журнала:
2024,
Номер
40(19), С. 10334 - 10345
Опубликована: Май 1, 2024
The
utilization
and
selectivity
of
single
atoms
have
garnered
significant
attention
among
researchers.
However,
they
are
easy
to
agglomerate
because
their
high
surface
energy.
To
overcome
this
challenge,
it
is
crucial
seek
suitable
carriers
anchor
metal
achieve
optimal
performance.
In
work,
the
structures
transition
embedded
in
hexagonal
boron
nitride
(MB2N2,
M
=
Fe,
Co,
Ni,
Cu,
Zn)
constructed
used
for
adsorption
sensing
lithium
battery
thermal
runaway
gases
(H2,
CO,
CO2,
CH4)
through
DFT
method.
behavior
MB2N2
was
evaluated
energy,
sensitivity,
recovery
time.
calculation
results
indicate
that
CoB2N2
exhibits
strong
capacity
both
H2
CO.
sensitivity
FeB2N2
toward
CO
as
3.232
×
1016.
Subsequently,
mechanism
studied
TDOS
PDOS,
showed
hybridization
between
orbitals
enhanced
gas
This
study
presents
novel
approaches
designing
single-atom
developing
sensors
detecting
gases.
