Smart Materials and Structures,
Год журнала:
2024,
Номер
33(3), С. 035003 - 035003
Опубликована: Янв. 23, 2024
Abstract
Polyvinyl
alcohol
(PVA)
has
good
biocompatibility,
a
simple
fabrication
process,
and
environmental
protection,
which
is
very
suitable
for
the
production
of
triboelectric
nanogenerator
(TENG)
applied
to
smart
home
control.
However,
output
performance
TENG
composed
PVA
PDMS
films
not
high.
Previous
research
explored
enhancement
PVA-based
by
doping
with
conductive
materials
modify
dielectric
properties
composite
films.
Nevertheless,
this
approach
associated
issues
high
costs
energy
consumption.
This
work
prepared
mullite/PVA
material
(MP-TENG),
introduction
mullite
induced
interfacial
polarization
in
film.
effect
resulted
appearance
centers,
thereby
enhancing
charge-sensing
capability
Consequently,
MP-TENG
was
improved.
MP-TENGs
different
amounts
fiber
were
prepared,
maximum
obtained
when
level
reached
3
wt%.
At
concentration,
film
exhibited
an
open-circuit
voltage
70.89
V
short-circuit
current
2.45
μ
A.
An
1.78
1.71
times
achieved
respect
pure
PVA-TENG,
respectively.
In
addition,
excellent
sensing
characteristics,
control
system
designed
conjunction
hardware
circuit,
captured
hand
motions
encoded
them
generate
binary
codes
on/off
state
indoor
home.
Sensors,
Год журнала:
2025,
Номер
25(9), С. 2753 - 2753
Опубликована: Апрель 26, 2025
Ammonia
(NH3)
is
a
common
agricultural
gas,
and
its
accurate
detection
critical
to
production.
In
this
study,
nano-CuO/CeO2
composites
were
prepared
achieve
wide
range
of
ammonia
at
room
temperature.
Characterization
data
verified
the
composite
heterojunction
structure
CuO/CeO2,
which
demonstrates
an
outstanding
large
specific
surface
area
for
detection.
It
provides
more
active
sites
NH3
molecules,
brings
very
high
response
(70.3%
@100
ppm
NH3),
(0.5-200
fast
response/recovery
time
(13
s/17
s
@20
NH3).
Systematic
testing
showed
that
also
exhibit
excellent
extended-term
stability
selectivity.
Further
studies
p-n
CuO/CeO2
allowed
retain
gas-sensitive
properties
ammonia,
in
addition
improved
ammonia-detection
based
on
synergistic
effect
these
two
materials.
The
mechanism
nanocomposites
towards
was
elucidated
from
microscopic
perspective
molecular
level.
Finally,
triboelectric
nanogenerator
(TENG)
can
be
driven
by
wind
power
has
been
prepared,
upon
feasibility
combination
TENG
sensor
realize
environmental
monitoring
investigated.
Smart Materials and Structures,
Год журнала:
2024,
Номер
33(3), С. 035003 - 035003
Опубликована: Янв. 23, 2024
Abstract
Polyvinyl
alcohol
(PVA)
has
good
biocompatibility,
a
simple
fabrication
process,
and
environmental
protection,
which
is
very
suitable
for
the
production
of
triboelectric
nanogenerator
(TENG)
applied
to
smart
home
control.
However,
output
performance
TENG
composed
PVA
PDMS
films
not
high.
Previous
research
explored
enhancement
PVA-based
by
doping
with
conductive
materials
modify
dielectric
properties
composite
films.
Nevertheless,
this
approach
associated
issues
high
costs
energy
consumption.
This
work
prepared
mullite/PVA
material
(MP-TENG),
introduction
mullite
induced
interfacial
polarization
in
film.
effect
resulted
appearance
centers,
thereby
enhancing
charge-sensing
capability
Consequently,
MP-TENG
was
improved.
MP-TENGs
different
amounts
fiber
were
prepared,
maximum
obtained
when
level
reached
3
wt%.
At
concentration,
film
exhibited
an
open-circuit
voltage
70.89
V
short-circuit
current
2.45
μ
A.
An
1.78
1.71
times
achieved
respect
pure
PVA-TENG,
respectively.
In
addition,
excellent
sensing
characteristics,
control
system
designed
conjunction
hardware
circuit,
captured
hand
motions
encoded
them
generate
binary
codes
on/off
state
indoor
home.
