International Journal of Extreme Manufacturing,
Journal Year:
2024,
Volume and Issue:
7(1), P. 015505 - 015505
Published: Oct. 18, 2024
Abstract
The
use
of
water
resources
for
energy
generation
has
become
increasingly
prevalent,
encompassing
the
conversion
kinetic
from
streams,
tides,
and
waves
into
renewable
electrical
power.
Water
sources
offer
numerous
benefits,
including
widespread
availability,
stability,
absence
carbon
dioxide
other
greenhouse
gas
emissions,
making
them
a
clean
environmentally
friendly
form
energy.
In
this
work,
we
develop
droplet-based
liquid–solid
triboelectric
nanogenerator
(LS-TENG)
using
sophisticatedly
designed
inflatable
columnar
structures
with
inner
outer
dual-electrodes.
This
device
can
be
utilized
to
harvest
both
internal
droplet-rolling
mechanical
external
droplet-falling
energy,
capable
being
assembled
various
versatile
applications.
design
incorporates
combined
structure
TENG
optimize
output
performance
via
multiple
harvesting
strategies.
features
dual-electrode
columnar-shaped
LS-TENG,
fluid
droplets.
By
leveraging
back-and-forth
motion
small
amount
within
air
column,
readily
collected,
achieving
maximum
mass
power
density
9.02
W·Kg
−1
an
efficiency
10.358%.
component
is
which
utilizes
double-layer
capacitor
switch
effect
elucidated
equivalent
circuit
model.
Remarkably,
without
need
pre-charging,
single
droplet
generate
over
140
V
high
voltage,
7.35
W·m
−2
22.058%.
LS-TENG
sophisticated
simultaneously
collect
types
efficacy,
exhibiting
great
significance
in
potential
applications
such
as
aeration
rollers,
lifejacket,
wind
harvesting,
tents,
green
houses.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 8, 2024
Abstract
Diverging
from
air
breakdown‐based
triboelectric
nanogenerators
(TENGs),
recent
TENG
designs
present
high
output
power
density
without
requiring
precise
control
over
discharge
channels.
However,
existing
researches
predominantly
ascribe
its
direct
current
to
electrostatic
induction,
disregarding
the
critical
factor
of
charge
leakage.
This
oversight
hampers
efforts
improve
device
performance,
especially
in
material
selection
and
optimization.
Here,
generation
signals
ultimately
stems
leakage
spatial
induction
is
illustrated.
Through
theoretical
analysis,
visualization,
experimental
measurement
four
phenomena
device,
a
quadruple‐effect
mechanoelectrical
conversion
mechanism
established
refine
rule.
Under
this
guideline,
increased
by
34.42%
contrast
TENG.
For
practical
applications,
management
circuit
utilized
boost
device's
charging
rate
up
18
times.
Furthermore,
voltage
can
activate
discharge‐type
UV
tubes,
demonstrating
great
potential
developing
self‐powered
wastewater
treatment
systems.
The
multiple
behaviors
proposed
work,
along
with
rule,
lay
solid
foundation
for
achieving
TENGs.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 5, 2025
Harvesting
low-velocity
water
flow
energy
stably
over
the
long
term
is
a
significant
challenge.
Herein,
flexible
rolling
triboelectric
nanogenerator
with
bionic
gill
cover
structure
(GFR-TENG)
to
harvest
steady
proposed.
The
dielectric
material
of
GFR-TENG
eight
hollow
fluorinated
ethylene
propylene
(FEP)
pipes,
which
guarantees
that
friction
formed
between
and
copper
electrode.
This
design
significantly
reduces
wear
electrode
enhances
durability
nanogenerator.
Even
after
1
700
000
cycles,
its
performance
retention
rate
more
than
95%.
using
wheel
whale
shark
exhibits
outstanding
hydrodynamic
performance,
increasing
by
24.54%
comparing
normal
on
rotation
frequency.
In
research
parameters,
can
steadily
at
0.22
m
s
Device,
Journal Year:
2024,
Volume and Issue:
2(10), P. 100465 - 100465
Published: July 25, 2024
Manipulating
objects
using
physical
tweezers
is
crucial
in
physics,
chemistry,
and
biology.
Despite
significant
advancements,
however,
these
are
still
limited
by
the
need
for
complex
electrode
arrays,
external
power
sources,
restricted
charge-generation
capability.
Here,
we
report
an
innovative
self-powered
electrostatic
tweezer
(SET)
that
harnesses
unique
capability
of
accumulation
tunability
triboelectric
charges
poly(vinylidene
fluoride-trifluoroethylene)
(P(VDF-TrFE))-based
during
sliding
triboelectrification,
imparting
unprecedented
flexibility
adaptivity
object
manipulation.
The
SET
enables
precise
manipulation
with
diverse
materials,
including
bubbles,
solid
balls,
liquid
droplets,
a
superior
high
velocity
353
mm
s−1.
Notably,
adaptive
to
open-to-closed
platforms,
single-to-multiple
objects,
two-dimensional
(2D)-to-3D
surfaces,
thereby
extending
various
applications
droplet
robots,
cell
assembly,
pump-free
microfluidics.
By
eliminating
heat
generation,
holds
great
potential
next-generation
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 11, 2024
Abstract
In
the
swiftly
progressing
landscape
of
wearable
electronics
and
Internet
Things
(IoTs),
there
is
a
burgeoning
demand
for
devices
that
are
lightweight,
cost‐effective,
self‐powered.
this
study,
self‐powered
bidirectional
knee
joint
motion
monitoring
system
introduced,
leveraging
dual
ratchet
sensing
(DRS)
fabricated
using
3D
printing
technology.
This
approach
offers
substantial
economic
portability
benefits.
The
DRS
engineered
to
harness
negative
work
generated
from
movements
power
commercial
electronic
devices,
obviating
need
additional
metabolic
energy
human
body.
By
synergizing
with
virtual
reality
technology,
it
becomes
feasible
monitor
in
real‐time
remarkable
accuracy,
presenting
novel
avenue
integration
digital
twin
Through
amalgamation
convolutional
neural
network
machine
learning
algorithms
Bayesian
optimization
techniques,
can
discern
up
97%
movements,
paving
way
innovative
applications
smart
rehabilitation
healthcare.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 12, 2024
Abstract
Programmed
droplet
transport
which
is
typically
directed
by
surface
energy
gradients
or
external
fields,
crucial
in
domains
ranging
from
chemical
reaction
modulation
to
self‐powered
intelligent
sensing.
However,
motion
control
remains
constrained
path
reconfiguration,
requirements
on
modification,
and
platform
complexity.
Here,
a
more
universal
plug‐and‐play
manipulation
paradigm
based
liquid‐solid
contact
electrification
triboelectricwetting
common
dielectric
surfaces
reported.
By
regulating
the
electrical
double
layer
via
asymmetric
ion
dynamics,
triboelectric
charge
polarity
of
droplets
can
be
adjusted,
enabling
situ
without
reconfiguration
dictated
conventional
output.
Droplets
achieved
an
ultrahigh
velocity
450
mm
s
−1
general
surfaces,
significantly
exceeding
speeds
observed
subjected
constant
electrostatic
fields
with
modifications.
This
flexible
modular
functionally
decoupled
strategy
offers
environmentally
friendly,
cost‐effective,
versatile
paradigm,
facilitating
applications
analysis
smart
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 6, 2025
Droplets
manipulation
has
attracted
increasing
attention
for
its
increasingly
widespread
applications.
However,
current
droplet
usually
needs
complex
preparation
methods.
Here,
inspired
by
lotus
leaves,
rive
and
desert
beetles,
triple
biomimetic
surfaces
are
prepared
through
laser
heating.
The
mastoid
structures
contribute
to
the
construction
of
superwettability.
Within
effective
cycles,
patterned
scanning
processing
helps
achieve
various
interlaced
wettability.
groove
structure
compensates
decrease
in
ability
caused
attenuation
Meanwhile,
endows
regions
with
good
durability.
wettability
together
constitute
anisotropic
suface
patterns.
Macroscopic
microscopic
been
successfully
achieved,
demonstrating
This
work
not
only
provides
a
titanium
surface
properties
but
also
new
insights
manipulations
on
metal
surfaces.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: March 8, 2025
Droplet
manipulation
holds
significant
promise
across
the
energy,
environmental,
and
medical
fields.
However,
current
methods
still
lack
a
solution
that
simultaneously
satisfies
requirements
for
self-powered
energy
supply,
high
efficiency,
human-droplet
interaction,
flexibility,
universality.
Herein,
we
develop
interaction
platform
based
on
an
omni-directional
triboelectric
tweezer,
which
directly
utilizes
charges
induced
by
human
motion
to
manipulate
droplets.
The
tweezer
produces
electric
field
necessary
droplet
control
through
simple
sliding
motions,
thereby
eliminating
conventional
dependencies
power
source
complex
electrode
arrays.
Moreover,
its
operation
capability
further
enhances
flexibility
precision
of
manipulation.
Our
approach
demonstrates
effective
in
both
gas
liquid
phases
hand
movements,
enabling
range
operations
such
as
efficient
transportation,
precise
anchoring,
flexible
steering,
merging
chemical
reactions,
drug
extraction,
showcasing
comprehensive
application
capabilities.
Here,
authors
It
generates
voltage
air
oil.
Applications
may
include
high-speed
transport,
positioning,
non-invasive
sample
extraction.