Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: Oct. 13, 2023
Firefighting
protective
clothing
is
a
crucial
equipment
for
firefighters
to
minimize
skin
burn
and
ensure
safety
firefighting
operation
rescue
mission.
A
recent
increasing
concern
develop
self-powered
fire
warning
materials
that
can
be
incorporated
into
the
achieve
active
protection
before
catches
on
fireground.
However,
it
still
challenge
facilely
design
manufacture
thermoelectric
(TE)
textile
(TET)-based
electronics
with
dynamic
surface
conformability
breathability.
Here,
we
an
alternate
coaxial
wet-spinning
strategy
continuously
produce
alternating
p/n-type
TE
aerogel
fibers
involving
n-type
Ti3C2Tx
MXene
p-type
MXene/SWCNT-COOH
as
core
materials,
tough
aramid
nanofiber
shell,
which
simultaneously
flexibility
high-efficiency
power
generation.
With
such
fibers,
TET-based
sensors
high
mechanical
stability
wearability
are
successfully
fabricated
through
stitching
p-n
segment
fabric.
The
results
indicate
containing
50
pairs
open-circuit
voltage
of
7.5
mV
density
119.79
nW
cm-2
at
temperature
difference
300
°C.
output
signal
then
calculated
corresponding
based
linear
relationship
between
temperature.
alarm
response
time
flame-retardant
properties
further
displayed.
Such
true
textiles
offer
breathability
compatibility
body
movement,
demonstrating
their
potential
application
in
clothing.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: May 31, 2024
Abstract
The
rapid
development
of
the
Internet
Things
and
artificial
intelligence
technologies
has
increased
need
for
wearable,
portable,
self-powered
flexible
sensing
devices.
Triboelectric
nanogenerators
(TENGs)
based
on
gel
materials
(with
excellent
conductivity,
mechanical
tunability,
environmental
adaptability,
biocompatibility)
are
considered
an
advanced
approach
developing
a
new
generation
sensors.
This
review
comprehensively
summarizes
recent
advances
in
gel-based
TENGs
sensors,
covering
their
principles,
properties,
applications.
Based
requirements
working
mechanism
characteristic
advantages
gels
introduced.
Design
strategies
performance
optimization
hydrogel-,
organogel-,
aerogel-based
systematically
summarized.
In
addition,
applications
human
motion
sensing,
tactile
health
monitoring,
human–machine
interaction,
other
related
fields
Finally,
challenges
discussed,
feasible
proposed
to
guide
future
research.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: July 10, 2024
Abstract
Fire
warning
is
vital
to
human
life,
economy
and
ecology.
However,
the
development
of
effective
systems
faces
great
challenges
fast
response,
adjustable
threshold
remote
detecting.
Here,
we
propose
an
intelligent
self-powered
IoT
fire
system,
by
employing
single-walled
carbon
nanotube/titanium
carbide
thermoelectric
composite
films.
The
flexible
films,
prepared
a
convenient
solution
mixing,
display
p-type
characteristic
with
excellent
high-temperature
stability,
flame
retardancy
TE
(power
factor
239.7
±
15.8
μW
m
−1
K
−2
)
performances.
comprehensive
morphology
structural
analyses
shed
light
on
underlying
mechanisms.
And
assembled
devices
(TEDs)
exhibit
voltages
(1–10
mV).
Excitingly,
ultrafast
response
time
~
0.1
s
at
1
mV
voltage
achieved,
rivaling
many
state-of-the-art
systems.
Furthermore,
reveal
outstanding
stability
after
50
repeated
cycles
desired
durability
even
undergoing
180
days
air
exposure.
Finally,
TED-based
wireless
system
has
been
developed
coupling
amplifier,
analog-to-digital
converter
Bluetooth
module.
By
combining
characteristics,
signal
transmission,
TE-based
hybrid
here
promising
for
next-generation
applications.
