Aerogel
fibers
are
an
emerging
class
of
ultralightweight
materials,
which,
compared
to
conventional
bulk
monolithic
and
aerogel
films,
provide
better
flexibility
extensibility.
Despite
the
recent
advancements
in
this
field,
due
their
highly
porous
structure,
mechanical
properties
can
be
deteriorated.
Inspired
by
textile
industry,
we
report
development
fiber
bundles
with
twisted
structures
as
a
promising
strategy
enhance
performance
practicality
fibers.
Polyimide
(PI)
were
prepared
via
sol-gel
confined
transition
method.
The
showed
unique
nanostructured
assembly
high
specific
surface
area,
excellent
optical
transparency,
outstanding
at
diverse
extreme
conditions,
self-extinguishing
behavior,
superior
thermal
insulation
performance.
Using
PI
backbone,
various
configurations
designed
fabricated.
A
systematic
study
was
performed
analyze
effect
design
parameters
on
bundles.
Results
revealed
optimal
twist
level
for
bundles,
leading
peak
across
bundle
configurations.
observed
improvement
attributed
increased
fiber-to-fiber
binding
strength,
enhanced
friction,
interlocking
mechanism
fibers,
underscoring
potential
optimized
enhancing
Overall,
holds
great
promise
revolutionizing
production
high-performance
materials
management
applications.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(52)
Published: March 22, 2024
Abstract
Triboelectric
nanogenerator
(TENG)
manifests
distinct
advantages
such
as
multiple
structural
selectivity,
diverse
selection
of
materials,
environmental
adaptability,
low
cost,
and
remarkable
conversion
efficiency,
which
becomes
a
promising
technology
for
micro‐nano
energy
harvesting
self‐powered
sensing.
Tribo‐dielectric
materials
are
the
fundamental
core
components
high‐performance
TENGs.
In
particular,
charge
generation,
dissipation,
storage,
migration
dielectrics,
dynamic
equilibrium
behaviors
determine
overall
performance.
Herein,
comprehensive
summary
is
presented
to
elucidate
dielectric
transport
mechanism
tribo‐dielectric
material
modification
principle
toward
The
contact
electrification
started
first,
followed
by
introducing
basic
Subsequently,
mechanisms
strategies
highlighted
regarding
physical/chemical,
surface/bulk,
coupling,
structure
optimization.
Furthermore,
representative
applications
based
TENGs
power
sources,
sensors
demonstrated.
existing
challenges
potential
opportunities
advanced
outlined,
guiding
design,
fabrication,
materials.
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.
Small,
Journal Year:
2023,
Volume and Issue:
19(52)
Published: Aug. 30, 2023
Due
to
the
simple
installation
and
convenient
maintenance,
floating
water
wave
energy
harvesting
devices
have
significant
economic
advantages.
Mass
power
density
is
most
important
index
evaluate
advancement
of
devices.
Herein,
a
self-adaptive
rotating
triboelectric
nanogenerator
(SR-TENG)
with
compound
pendulum
functional
gear-set
provided
for
harvesting.
First,
structure
low
center
gravity
high
moment
inertia
obtained
by
geometric
design
mechanical
study.
Besides,
compared
previous
one-way
clutch,
SR-TENG
can
harvest
twice
kinetic
utilization
through
gear-set.
Importantly,
depending
on
design,
obtains
average
mass
45.18
mW
kg-1
under
frequency
driving
conditions,
which
about
10
times
reference
electromagnetic
generator
similar
size.
This
result
shows
that
has
advantage
in
small
These
findings
provide
an
example
ACS Sustainable Chemistry & Engineering,
Journal Year:
2023,
Volume and Issue:
11(25), P. 9424 - 9432
Published: June 12, 2023
A
biocompatible
and
porous
triboelectric
nanogenerator
(TENG)
based
on
bacterial
cellulose
(BC)
hydroxyethyl
(HEC)
aerogel
was
presented
in
this
paper.
Due
to
the
higher
surface
roughness,
lower
potential,
highly
structure,
output
performance
of
BC-TENG
significantly
boosted.
The
performances
were
more
than
30
times
greater
that
pure
BC
4
nonporous
sample
with
same
HEC
content
(80
wt
%).
When
BC/HEC
is
combined
wood
panels,
a
self-powered
smart
door
panel
can
be
obtained,
which
convert
mechanical
energy
from
knocking
tapping
into
electrical
light
up
commercial
light-emitting
diode
(LED)
lights
or
generate
wireless
signals
mobile
phone
screen
help
hearing-impaired
people
know
at
time.
Moreover,
water
used
as
sole
dispersant
dissolution.
advantages
retained
great
extent,
so
it
provide
new
modification
idea
for
biobased
TENG
future.
This
work
proposed
facial
environmentally
friendly
method
achieve
cellulose-based
biocompatibility,
low
cost,
enhanced
performance.
Polymers,
Journal Year:
2023,
Volume and Issue:
15(22), P. 4383 - 4383
Published: Nov. 11, 2023
Since
the
invention
of
triboelectric
nanogenerator
(TENG),
porous
polymer
materials
(PPMs),
with
different
geometries
and
topologies,
have
been
utilized
to
enhance
output
performance
expand
functionality
TENGs.
In
this
review,
basic
characteristics
preparation
methods
various
PPMs
are
introduced,
along
their
applications
in
TENGs
on
basis
roles
as
electrodes,
surfaces,
structural
materials.
According
pore
size
dimensionality,
types
that
built
hydrogels,
aerogels,
foams,
fibrous
media
classified
advantages
disadvantages
analyzed.
To
deepen
understanding
future
development
trend,
intelligent
multifunctional
human–machine
interfaces,
smart
wearable
devices,
self-powering
sensors
introduced.
Finally,
directions
challenges
explored
provide
possible
guidance
TENG-based
devices
systems.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(49)
Published: Aug. 8, 2024
Abstract
Recent
developments
in
robotics
increasingly
highlight
the
importance
of
sensing
technology,
especially
tactile
perception,
enabling
robots
to
effectively
engage
with
their
environment
and
interpret
physical
interactions.
Due
power
efficiency
low
cost,
triboelectric
mechanism
has
been
frequently
studied
for
measuring
pressure
identifying
materials
enhance
robot
perception.
Nevertheless,
there
limited
exploration
using
effect
detect
curved
surfaces,
despite
prevalence
daily
lives.
Here,
a
multimodal
sensor
(TMTS)
multilayered
structural
design
is
proposed
recognize
distinct
materials,
curvatures,
simultaneously,
thus
decoupling
different
modalities
enable
more
accurate
detection.
By
attaching
sensors
robotic
fingertips
leveraging
deep
learning
analytics,
quantitative
curvature
measurement
provides
precise
insights
into
an
object's
detailed
geometric
characteristics
rather
than
merely
assessing
its
overall
shape,
hence
achieving
automatic
recognition
12
grasped
objects
99.2%
accuracy.
The
can
be
further
used
accurately
softness
under
touch
gestures
hand,
94.1%
accuracy,
demonstrating
significant
potential
wide‐ranging
applications
future
robotic‐enabled
intelligent
society.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 2, 2024
Abstract
Herein,
we
present
a
novel
method
for
fabricating
triboelectric
nanogenerator
using
Polyacrylonitrile
(PAN)
on
both
sides
as
pairs,
incorporating
metal‐organic
frameworks
(MOFs)
such
ZIF‐8,
ZIF‐67,
MIL‐100,
and
HKUST‐1
during
the
electrospinning
process.
The
properties
of
MOF‐incorporated
fibers
are
thus
tailored
positioned
within
series
first
time.
resulting
polarity
composite
fiber
is
linked
to
optical
bandgap
energy
PAN
MOF/PAN
composite,
facilitating
electron
transfer
between
materials
different
work
functions
leading
enhanced
output
in
developed
devices.
Fascinatingly,
appropriate
choice
MOF
filler
also
displayed
potential
reversing
nanofiber.
Consequently,
ZIF‐8
MIL‐100
into
nanofibers
led
notably
contrasting
trends
polarity,
with
pair
generating
an
open‐circuit
voltage
100
V,
short‐circuit
current
1.35
μA,
power
density
18.4
mW/m
2
respectively.
fabricated
device
demonstrated
effectiveness
mechanical
harvesting
applications
self‐powered
humidity
sensor,
displaying
rapid
response
changes
ambient
levels
maximum
sensitivity
2.14
V/%RH,
relative
range
50
90%
humidifying
cycle.
