Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 5, 2025
Abstract
The
widespread
deployment
of
Internet
Things
(IoT)
networks
has
actualized
omnipresent
device
interconnectivity.
Despite
technological
advancements,
IoT
edge
devices
suffer
persistent
energy
bottlenecks
from
suboptimal
coordination
power
acquisition
and
adaptive
management.
Self‐charging
sources
(SCPS)
aim
to
achieve
autonomous
operation
through
monolithic
integration
three
core
components:
harvesters,
management
circuits,
supercapacitors/batteries.
These
enable
continuous
ambient
harvesting,
providing
uninterrupted
supply
for
wearable
electronics
applications.
Nevertheless,
material
selection
component
design
remain
key
challenges
in
SCPS
development.
As
an
essential
artificial
intelligence
paradigm,
machine
learning
(ML)
enables
data‐driven
structural
based
on
historical
experimental
datasets,
thereby
elevating
performance
superior
level.
This
paper
reviews
the
development
SCPSs
application
ML
SCPSs,
with
a
particular
focus
triboelectric
nanogenerators
(TENGs)
supercapacitors
(SCs).
A
generalized
workflow
suggested
parameters
is
proposed
guide
prediction
TENG
by
incorporating
previous
theoretical
research.
Additionally,
ML‐guided
carbon‐based
SC
materials
computer‐aided
suppression
self‐discharge
are
selected
as
typical
examples
discuss.
combination
expected
push
forward
more
efficient
self‐sufficient
Nano Letters,
Год журнала:
2024,
Номер
24(12), С. 3826 - 3834
Опубликована: Март 18, 2024
Lightweight,
easily
processed,
and
durable
polymeric
materials
play
a
crucial
role
in
wearable
sensor
devices.
However,
achieving
simultaneously
high
strength
toughness
remains
challenge.
This
study
addresses
this
by
utilizing
an
ion-specific
effect
to
control
crystalline
domains,
enabling
the
fabrication
of
triboelectric
material
with
tunable
mechanical
properties.
The
dense
crystal-domain
cross-linking
enhances
energy
dissipation,
resulting
boasting
both
tensile
(58.0
MPa)
(198.8
MJ
m–3),
alongside
remarkable
416.7%
fracture
elongation
545.0
MPa
modulus.
Leveraging
these
properties,
is
successfully
integrated
into
self-powered
devices,
real-time
feedback
on
human
joint
movement.
work
presents
valuable
strategy
for
overcoming
strength-toughness
trade-off
materials,
paving
way
their
enhanced
applicability
broader
use
diverse
sensing
applications.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(33)
Опубликована: Март 22, 2024
Abstract
Nerve
injury
can
lead
to
defects
in
related
motor
functions.
It
is
critical
achieve
long‐term
and
convenient
real‐time
evaluation
of
function
recovery
status
during
nerve
repair.
In
this
study,
an
implantable
PLLA/BTO
piezoelectric
sensor
(PBPS)
with
good
biodegradability
biocompatibility
for
real
time
the
after
developed.
PLLA
fibers
doped
BTO
are
employed
as
material
PBPS,
which
convert
biomechanical
signals
generated
by
motion
into
electrical
signals.
PBPS
be
implant
simultaneously
commonly
used
tissue
scaffolds
treatment
rats
sciatic
injury.
The
linearity
pressure
output
voltage
≈0.9445.
For
effectiveness,
process
progresses,
exhibited
consistency
EMG
signals,
indicating
effectively
function.
Moreover,
integration
wireless
module
break
limitations
space
sensing
realize
rat.
based
on
may
bring
new
ideas
development
bioelectronics.
Underwater
ultrasonic
detection
is
critical
for
marine
security,
playing
a
vital
role
in
resource
development,
environmental
protection,
and
national
defense.
However,
existing
systems,
which
primarily
rely
on
active
scanning
technologies,
are
hindered
by
high
costs,
significant
energy
demands,
challenges
achieving
large-scale
deployment.
Here,
we
introduce
microfiber-based
triboelectric
acoustic
sensor
(MTAS)
featuring
core-shell
hierarchical
structure,
offering
self-powered
solution
precise
measurement
of
underwater
ultrasound
source
distance.
By
leveraging
the
principles
contact
electrification/triboelectrification
electrostatic
induction,
MTAS
efficiently
converts
complex
vibrations
into
real-time
electrical
signals.
The
demonstrates
rapid
response
times
as
low
8.6
μs,
signal-to-noise
ratio
29.8
dB,
capability
to
detect
sources
with
power
levels
above
1.6
W
via
time-difference-of-arrival
analysis.
To
address
sea
applications,
further
propose
distributed
network
that
integrates
multiple
units
capable
localization
motion
trajectory
visualization.
This
innovation
represents
transformative
approach,
combining
operation,
ease
deployment,
imperceptibility,
paving
way
large-area,
energy-efficient
submarine
security
systems.
Such
advancements
redefine
paradigm
target
detection,
aligning
technological
pressing
demands
safety
sustainability.
Abstract
Benefiting
from
the
high
sensitivity
and
electromechanical
conversion
efficiency,
triboelectric
nanogenerators
(TENGs)
are
widely
used
in
various
fields
of
self‐powered
sensing
mechanical
energy
harvesting,
which
have
great
potential
for
application
future
smart
Internet
Things.
The
development
sustainable
materials
with
high‐performance
has
a
vital
impact
on
construction
TENG
devices
that
combine
high‐output
performance
environmental
friendliness,
positive
humanity.
This
review
systematically
comprehensively
summarizes
latest
research
work
TENG's
materials.
First,
an
overall
overview
is
provided
based
composition
materials,
including
amino
acids,
polysaccharides,
synthetic
polymer,
representative
works
further
classified
summarized
detail.
In
addition,
progress
harvesting
applications
also
summarized.
Finally,
overviews
challenges
current
material,
related
outlooks
offered
corresponding
strategies
directions
this
field
future.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(36)
Опубликована: Июнь 5, 2024
Abstract
Balancing
electrochemical
activity
and
structural
reversibility
of
fibrous
electrodes
with
accelerated
Faradaic
charge
transfer
kinetics
pseudocapacitive
storage
are
highly
crucial
for
fiber‐shaped
supercapacitors
(FSCs).
Herein,
we
report
novel
core–shell
hierarchical
fibers
high‐performance
FSCs,
in
which
the
ordered
NiCoMoS
nanosheets
arrays
chemically
anchored
on
Ti
3
C
2
T
x
fibers.
Beneficial
from
architecting
stable
polymetallic
sulfide
conductive
networks,
NiCoMoS−Ti
fiber
maintains
fast
transfer,
low
diffusion
OH
−
adsorption
barrier,
stabilized
multi‐electronic
reaction
sulfide.
Consequently,
exhibits
a
large
volumetric
capacitance
(2472.3
F
cm
−3
)
reversible
cycling
performance
(20,000
cycles).
In
addition,
solid‐state
symmetric
FSCs
deliver
high
energy
density
50.6
mWh
bending
stability,
can
significantly
power
electronic
devices
offer
sensitive
detection
dopamine.
