Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 23, 2025
Abstract
Integration
of
triboelectric
nanogenerators
(TENGs)
with
water
splitting
offers
a
promising
approach
for
generating
green
hydrogen
from
mechanical
energy.
However,
the
development
efficient
TENGs
is
challenged
by
significant
losses.
To
enhance
sustainable
energy
harvesting,
it
crucial
to
minimize
these
losses
and
improve
tribo‐polarities.
Recent
advancements
in
incorporating
conductive
fillers
have
proven
effective
improving
performance.
In
this
study,
new
class
bifunctional
amino
surface‐modified
graphene
oxide
(MGO)
synthesized
graphite
powder
introduced.
The
MGO
filler
enhances
positive
polarity
polymer
through
groups
while
reducing
loss
due
inherent
conductivity
graphene.
Incorporating
1.5
wt.%
into
silk
electrospun
membranes
(1.5SMGO)
boosted
surface
positivity
+695
+1905
V,
surpassing
unmodified
(GO)
(+1220
V),
highlighting
impact
modification.
resulting
TENG
1.5SMGO
exhibits
an
open
circuit
voltage
1135
V
current
density
11.76
mA
m
−
2
,
demonstrating
its
effectiveness
as
harvester
low‐power
electronics.
Additionally,
proposed
can
serve
source
water‐splitting,
enabling
production.
Thus,
MGO‐based
holds
potential
self‐powered
wearable
electronics
water‐splitting
applications.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 16, 2025
Abstract
Smart
flooring
embedded
with
TENG
technology
enhances
safety
and
security
in
dream
homes
by
generating
energy
through
movement,
providing
real‐time
alerts
monitoring
capabilities.
Research
on
smart
is
limited,
particularly
concerning
its
washability,
which
remains
a
significant
drawback.
To
tackle
this
challenge,
an
innovative
solution
developed
that
not
only
washable
but
also
flexible
durable,
combining
barium
titanate
(BT)
graphite
fluorinated
polymer
(FG)
within
Ecoflex
(EC)
matrix,
utilizing
sandwich‐style
single‐electrode
(SWSE‐TENG)
configuration.
This
design
exhibits
remarkable
triboelectric
performance,
achieving
open‐circuit
potential
of
1000
V
short‐circuit
current
25
µA
when
tapped
nitrile‐glove‐clad
hand.
Extensive
testing
under
various
conditions
such
as
humidity,
water
immersion,
frequent
washing
demonstrates
outstanding
stability
resilience.
The
SWSE‐TENG
shows
promising
applications
safety,
security,
athletic
environments.
Prior
to
this,
EC‐BT‐FG
composites
varying
BT
FG
concentrations
using
facile
casting
technique
are
fabricated,
systematically
analyzing
their
structural,
crystalline,
electrical
properties.
Notably,
the
5
wt%
EC
composite
(EC‐5‐5)
superior
making
it
optimal
choice
for
solution.
ACS Applied Electronic Materials,
Journal Year:
2024,
Volume and Issue:
6(2), P. 1161 - 1173
Published: Jan. 25, 2024
Triboelectric
nanogenerators
(TENGs)
are
renowned
for
capturing
large-scale
unused
energy
from
ambient
surroundings.
A
sustainable
TENG
can
meet
future
demands
without
contaminating
our
environment.
In
the
present
study,
we
have
synthesized
nickel
oxide
nanoparticles
(NiO
NPs)
via
coprecipitation
method.
Further,
NiO
NPs
were
doped
with
poly(vinylidene
fluoride)
(PVDF)
(0
to
9
wt
%
w.r.t.
PVDF
concentration)
prepare
PVDF-NiO
electrospun
nanofibrous
mat.
The
output
efficiency
was
calculated
in
terms
of
open-circuit
voltage
(Voc)
and
short-circuit
current
(Isc).
NiO-doped
thermoplastic
polyurethane
(TPU)-based
generated
enhanced
performance
compared
pristine
(P-Ni-0)/TPU-based
TENG.
Among
six
combinations
samples
fabricated,
7
(P-Ni-7)/TPU-based
utmost
252
V,
which
is
almost
22-fold
higher
than
P-Ni-0/TPU
triboelectric
pair
(11.5
V).
Similarly,
maximum
achieved
7.3
μA,
a
9-fold
enhancement
over
(0.8
μA).
power
density
optimized
((P-Ni-7)/TPU)
0.86
mW/m2,
it
directly
used
light
up
15
LEDs.
Furthermore,
flexible
self-powered
P-Ni-7/TPU-based
device
demonstrated
real-time
biomechanical
motion
measurements.
Overall,
this
work
disclosed
facile
technique
doping
into
matrix,
fabricated
when
mechanical
harvesting
power-supplying
systems
miniaturized
wearable
electronic
devices.
ACS Applied Electronic Materials,
Journal Year:
2024,
Volume and Issue:
6(2), P. 887 - 900
Published: Jan. 25, 2024
Triboelectric
nanogenerators
(TENG)
based
on
natural
biomaterials
are
essential
for
energy-harvesting
applications.
In
this
work,
an
efficient
approach
was
proposed
to
enhance
the
electrical
performance
of
chitosan
(CS),
which
is
a
naturally
occurring
biopolymer
with
incorporation
polyethylenimine-grafted
graphene
oxide
(PEI-GO)
nanoparticles.
properties
different
weight
combinations
PEI-GO
in
CS
were
tested
against
polytetrafluoroethylene
(PTFE).
An
improvement
mechanical
and
nanocomposites
observed
comparison
pure
chitosan.
Thus,
composite
10
wt
%
used
as
positive
layer
TENG
device,
open-circuit
voltage
(Voc)
∼222
V,
short
circuit
current
(Isc)
∼6.6
μA,
transfer
charge
(Qsc)
∼149.6
nC
observed.
Almost
5.5
fold
increase
output
power
(∼1465.2
μW)
its
density
(∼407
mW/m2)
seen
nanocomposite
that
CS.
The
able
calculators
wristwatches
light
up
126
blue
light-emitting
diodes
(LEDs).
Further,
fabricated
same
polymer
(CS
nanocomposite)
tribo-layers,
where
acts
tribo-negative
PEI-GO-incorporated
tribo-positive
polymer-based
TENG.
device
found
14
white
LEDs
human
hand
tapping.
This
study
thus
presents
opportunities
utilizing
biomechanical
energy
everyday
life
bioelectronics
bioderived
materials.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(7), P. e29192 - e29192
Published: April 1, 2024
Flexible
electrospun
fiber-based
piezoelectric
nanogenerator
(PENG)
has
attracted
a
lot
of
interest
due
to
its
ability
generating
electrical
energy
from
mechanical
sources.
The
present
work
aims
improve
the
output
PENG
devices
based
on
polyvinylidene
fluoride
(PVDF)
doped
with
nickel
oxide
nanoparticles
(NiO
NPs)
in
different
concentrations
(2,
4,
6,
8
and
10
wt.-%).
Crystalline
phase
changes
β-crystalline
content
fibers
were
evaluated
using
XRD
FTIR-ATR,
respectively.
Surface
morphology
surface
roughness
observed
FE-SEM
AFM,
hydrophobic
nature
was
analyzed
wettability
test.
voltage
short-circuit
current
performance
neat
PVDF
NiO
(PN)
composite
calculated
customized
variable-pressure
setup
an
optimized
force
1.0
kgf
Hz
frequency.
Neat
PVDF-based
exhibited
only
1.7
V
0.7
μA,
whereas,
6
wt.-%
NP
(PN-6)
generated
high
5.5
1.83
μA
current.
PN-6
device
is
demonstrated
for
use
wearable
towards
identifying
certain
body
movements
like
tapping,
wrist
movement,
walking
running.
Journal of Metals Materials and Minerals,
Journal Year:
2025,
Volume and Issue:
35(1), P. e2226 - e2226
Published: Feb. 21, 2025
The
production
of
waste
materials
in
laboratories
is
an
unavoidable
consequence
diverse
experiments
and
activities.
These
can
range
from
chemicals,
solvents,
biological
samples
to
electronic
components,
glassware,
plastics.
Typically,
this
classified
into
hazardous
non-hazardous
categories,
requiring
careful
disposal
avoid
environmental
health
risks.
be
repurposed
for
energy
harvesting
methods,
such
as
using
polymers
triboelectric
nanogenerators
(TENGs)
or
recycling
metallic
electrodes.
This
approach
reduces
while
advancing
sustainable
solutions.
technique
demonstrates
remarkable
efficiency
utilizing
transform
various
forms
mechanical
electricity
multiple
smart
applications.
Herein,
we
have
collected
several
laboratory
wastes
including
used
latex
gloves,
aluminium
tape,
glass
slides,
fabricated
a
single-electrode
TENG
which
produced
electrical
outputs
220
V
voltage,
25
µA
current,
power
72
μW
at
500
MΩ
resistance.
device
was
also
charge
capacitors
LED
light.
Finally,
the
harvest
energies
natural
source
like
wind
energy,
droplet
exercise
activities,
body
movement
speaking
drinking
water.
kind
sustainable,
low-cost,
easy
fabricate
very
useful
applications
sensing,
biomedical
sectors.
