ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(21), С. 27339 - 27351
Опубликована: Май 15, 2024
The
droplet-based
nanogenerator
(DNG)
is
a
highly
promising
technology
for
harvesting
high-entropy
water
energy
in
the
era
of
Internet
Things.
Yet,
despite
exciting
progress
made
recent
years,
challenges
have
emerged
unexpectedly
AC-type
DNG-based
system
as
it
transitions
from
laboratory
demonstrations
to
real-world
applications.
In
this
work,
we
propose
high-performance
DNG
based
on
total-current
concept
address
these
challenges.
This
utilizes
water-charge-shuttle
architecture
easy
scale-up,
employs
field
effect
boost
charge
density
triboelectric
layer,
adopts
an
on-solar-panel
design
improve
compatibility
with
solar
energy,
and
equipped
novel
DC-DC
buck
converter
power
management
circuit.
These
features
allow
proposed
overcome
existing
bottlenecks
empower
superior
performances
compared
previous
ones.
Notably,
core
measuring
only
15
cm
×
12.5
0.3
physical
dimensions,
reaches
record-high
open-circuit
voltage
4200
V,
capable
illuminating
1440
LEDs,
can
4.7
mF
capacitor
4.5
V
less
than
24
min.
addition,
practical
potential
further
demonstrated
through
self-powered,
smart
greenhouse
application
scenario.
include
continuous
operation
thermohygrometer,
Bluetooth
plant
monitor,
all-weather
capability.
work
will
provide
valuable
inspiration
guidance
systematic
next-generation
unlock
sustainable
distributed
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(32)
Опубликована: Апрель 18, 2024
Abstract
Bubble
status
monitoring
is
essential
for
designing
material
nanostructures
and
optimizing
industrial
processes.
However,
tracking
the
fluid
dynamics
of
bubbles
challenging
due
to
their
random
distribution
irregular
dynamic
changes.
In
this
study,
a
tube
liquid–solid
triboelectric
nanogenerator
serves
as
probe
investigate
at
interface.
The
study
explores
impact
bubble
on
contact
electrification,
examining
variables
such
flow
rates,
volumes,
release
intervals
bubbles.
demonstrates
that
can
work
non‐intrusive
self‐powered
sensor
states
in
chemical
control.
exhibits
sensitivity
13.2
V·cm
−3
,
signal‐bubble
volume
correlation
coefficient
0.9964,
rapid
response
time
0.15
s.
sensor,
integrated
with
wireless
module,
enables
continuous
remote
detection.
This
provides
valuable
tool
investigating
tri‐phase
electrification
presents
promising
technology
state
monitoring.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 27, 2024
Abstract
Extracting
water
from
air
offers
a
promising
route
to
address
the
global
challenge
of
scarcity.
However,
bionic
engineering
surfaces
for
harvesting
often
struggle
with
efficiently
coordinating
droplet
nucleation
and
desorption.
The
recently
emerging
triboelectric
effect
at
liquid–solid
interface
novel
approach
developing
fog
surfaces.
In
this
study,
inspired
by
Namib
Desert
beetles
lotus
leaves,
biomimetic
superhydrophobic
surface
nanoscale
hydrophilic
domains
is
prepared
via
interfacial
self‐assembly,
exhibiting
heterogeneous
wettability
effective
harvesting.
essence
self‐assembly
lies
in
synergy
non‐covalent
interaction
forces,
driving
nanoparticles
into
micro‐nano
hierarchical
structures,
thereby
regulating
increasing
potential
sites.
Additionally,
can
directly
utilize
charges
facilitate
migration.
be
generated
flexible
mechanical
input
induced
walking,
which
enhances
mass
transfer,
rapidly
improving
removal
achieving
39.02%
increase
efficiency.
This
study
has
opened
up
new
breakthrough
design
portable
efficient
systems.
Advanced Sustainable Systems,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 25, 2024
Abstract
The
demand
for
sustainable
energy
resources
to
power
sensor
networks
such
as
consumer
electronics,
agricultural
technologies,
digital
forest
management,
and
home
automation
is
rapidly
increasing.
There
are
sustainability
challenges
consider,
where
waste
waterproof
textiles
critical
encourage
the
development
of
a
circular
economy
in
new
technologies.
This
present
work
focuses
on
utilization
direct
design
two
types
triboelectric
nanogenerator
(TENG),
which
include
liquid‐solid
based
TENG
(L‐S
TENG)
flapper‐type
TENG.
bottom
electrode
configuration
L‐S
single
electric
mode
working
mechanism
considered
Waste
can
lead
possible
expansion
material
harvesters.
raincoat
textile‐based
(L‐STENG‐R)
able
generate
0.5
V
at
tilt
angle
50
degrees
0.41
nW.
TENGs
discarded
further
utilized
demonstrate
their
phase
change
sensing,
along
with
wind
water
harvesting.
approach
focus
decreasing
lower
dependency
traditional
support
environmentally
responsible
alternatives.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(31), С. 19783 - 19805
Опубликована: Янв. 1, 2024
The
competition
between
electron
transfer
and
ion
at
the
solid–liquid
interface
is
summarized
performance
improvement
strategies
of
contact-electro-catalysis
under
natural
or
industrial
conditions
are
given.
Against
the
backdrop
of
rapid
advancements
in
5G
and
Internet
Things
(IoT)
technologies,
there
is
an
urgent
need
to
upgrade
food
sensing
systems
achieve
automation,
digitalization,
intelligence.
However,
this
transformation
process
faces
numerous
challenges.
Triboelectric
nanogenerators
(TENGs),
as
emerging
energy
conversion
technology,
play
a
crucial
role
context.
They
not
only
provide
power
functional
devices
but
also
serve
sensors
multifunctional
self-powered
systems,
capable
detecting
various
physical
chemical
information.
This
review
explores
development
TENGs
field
sensing,
focusing
on
working
principles
their
sensing.
The
systematically
organizes
classifies
material
device
designs
used
for
applications.
Based
performance
TENGs,
detailed
introduction
provided
specific
applications
sterilization,
quality
monitoring,
taste
safety.
Finally,
paper
discusses
challenges
corresponding
strategies
field.
aim
further
promote
unmanned
smart
services
management
sector
new
research
perspectives.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 14, 2024
Abstract
Harnessing
energy
from
underwater
bubbles
has
garnered
significant
attention,
particularly
for
powering
off‐grid
circuitry.
However,
the
efficiency
of
bubble‐driven
liquid‐solid
interface
charge
transfer
remains
low.
This
research
unveils
a
phenomenon:
accelerated
bubble
slippage
enhances
interfacial
transfer.
Building
upon
this
discovery,
pulse
bubble‐based
power
generation
technique
is
proposed,
achieving
an
density
24.2
mJ
L
−1
generated
by
pulsed
bubbles.
The
crux
lies
in
precise
control
impact
velocity.
By
meticulously
regulating
kinetic
bubbles,
accumulated
potential
multiple
small
converted
into
instantaneous
energy.
A
typical
controlled
within
72
ms
timeframe,
unleashing
surge
that
can
directly
illuminate
400
light‐emitting
diodes.
approach
represents
groundbreaking
advancement
harvesting
technology,
dramatically
expanding
its
applications.
