Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 6, 2025
Lithium-ion
batteries
(LIBs)
provide
many
benefits,
but
trace
electrolyte
leakage
can
cause
serious
safety
risks
such
as
thermal
runaway.
Although
gas
sensors
offer
a
potential
solution,
the
complexity
of
solvents
in
LIBs
makes
it
challenging
to
develop
sensing
materials
capable
universally
detecting
multiple
solvent
molecules.
Here,
Ag@Ag2O-functionalized
SnO2
nanoflowers
were
synthesized
using
self-template
pyrolysis
strategy
for
sensitive
detection
both
common
molecules
and
widely
used
electrolytes.
These
sensors,
enhanced
by
abundant
oxygen
vacancies
introduced
Ag@Ag2O
functionalization,
exhibit
excellent
sensitivity,
particularly
dimethyl
carbonate,
with
response
106-100
ppm,
low
limit
11.76
ppb,
rapid
response/recovery
times
(28/55
s)
at
an
operating
temperature
200
°C.
The
sensor
performance
was
validated
density
functional
theory
calculations,
which
corroborated
effectiveness
material.
In
simulated
LIB
scenarios,
puncture
injection,
demonstrated
quick
responses
various
compositions,
indicating
their
practical
applications.
This
study
highlights
effective
method
fabricating
composite
emphasizes
significance
our
universal
approach
monitoring
energy
storage
devices.
ACS Sensors,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
Timely
and
accurate
detection
of
H2S
is
crucial
for
preventing
serious
health
issues
in
both
humans
livestock
upon
exposure.
However,
metal-oxide-based
sensors
often
suffer
from
mediocre
sensitivity,
poor
selectivity,
or
long
response/recovery
time.
Here,
an
atomic
Ru
species-driven
SnO2-based
sensor
fabricated
to
realize
highly
sensitive
selective
at
the
parts
per
billion
level
as
low
100
ppb.
The
shows
a
high
sensing
response
(Rair/Rgas
=
310.1)
ultrafast
time
(less
than
1
s)
20
ppm
operating
temperature
160
°C.
Operando
SR-FTIR
spectroscopic
characterizations
DFT
calculations
prove
that
superior
properties
can
be
mainly
attributed
driven
effect
species
on
formation
surface-adsorbed
oxygen
surface
SnO2,
which
provides
more
active
sites
enhances
performance
SnO2
H2S.
Furthermore,
lab-made
wireless
portable
monitoring
system
developed
rapidly
detect
early
warning,
suggesting
potential
application
system.
This
work
novel
approach
fabricating
gas
by
metal
loaded
metal-oxide
semiconductors.
