Super Tough Anti‐freezing and Antibacterial Hydrogel With Multi‐crosslinked Network for Flexible Strain Sensor
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 5, 2025
Abstract
Addressing
the
diverse
environmental
demands
for
electronic
material
performance,
design
of
a
multifunctional
ionic
conductive
hydrogel
with
mechanical
flexibility,
anti‐freezing
capability,
and
antibacterial
characteristics
represents
an
optimal
solution.
Leveraging
Dead
Sea
effect
strong
hydrogen
bonding,
this
study
exploits
CaCl
2
abundant
hydroxyl
groups
in
phytic
acid
(PA)
to
induce
chain
entanglements,
thereby
constructing
complex,
multi‐crosslinked
network.
Furthermore,
PA
ternary
solvent
systems
(CaCl
/Glycerol/H
O)
synergistically
impart
excellent
strength,
toughness
(with
tensile
strength
8.93
MPa,
elongation
at
break
859.93%,
39.92
MJ
m
−3
),
high
electrical
conductivity,
antifreeze
properties,
strain
sensitivity
(gauge
factor
up
2.10)
hydrogels.
Remarkably,
structure
maintains
stability
even
after
undergoing
6000
loading‐unloading
cycles,
demonstrating
its
outstanding
fatigue
resistance.
Upon
receiving
external
stimuli,
exhibits
response
time
126
ms,
making
it
ideal
dynamic
monitoring
human
motion
signals.
This
offers
novel
insight
into
potential
application
hydrogels
as
flexible
sensors
challenging
environments.
Язык: Английский
Efficient Photoelectrocatalysis of Glycerol to Dihydroxyacetone and Synergistic Hydrogen Generation via Dual Oxidation Pathways Using Co-LDH/Bi2O3/TiO2 Ternary Array
ACS Catalysis,
Год журнала:
2025,
Номер
15(3), С. 2124 - 2138
Опубликована: Янв. 22, 2025
Replacing
the
oxygen
evolution
reaction
(OER)
in
photoelectrocatalytic
(PEC)
water
splitting
with
glycerol
oxidation
(GOR)
not
only
enhances
hydrogen
production
but
also
generates
high-value
byproducts.
In
this
study,
we
developed
a
ternary
photoanode,
Co-LDH/Bi2O3/TiO2,
by
loading
particulate
Bi2O3
and
linear
Co-LDH
onto
TiO2
nanorod
for
conversion
production.
The
characterization
results
confirm
formation
of
coupled
interfaces
between
TiO2,
which
improves
visible
light
utilization
promotes
type
II
heterojunctions,
resulting
significant
suppression
electron–hole
recombination
an
improvement
PEC
performance.
Fourier
transform
infrared
(FT-IR)
spectroscopy
revealed
that
Co-LDH/Bi2O3/TiO2
photoanode
exhibited
stronger
adsorption
intermediate
hydroxyl
group
more
effective
desorption
DHA
compared
to
binary
photoanodes
(Co-LDH/TiO2
Bi2O3/TiO2),
high-selectivity
DHA.
Mechanistic
studies
density
function
theory
calculations
have
shown
Co-LDH/TiO2
oxidizes
mainly
through
hole
oxidation,
Bi2O3/TiO2
radical
(•OH)
oxidation.
Therefore,
constructed
(Co-LDH/Bi2O3/TiO2)
dual
heterojunction
converts
pathways
•OH
This
work
demonstrates
promising
strategy
developing
high-performance
systems
production,
leveraging
synergistic
effects
multisemiconductor
heterojunctions
multiple
pathways,
offering
potential
practical
applications.
Язык: Английский
Simple construction of bio-based 3D core-shell flame retardants by self-sacrificing template method: For the preparation of polyurea composites with flame retardancy, smoke suppression and preferable mechanical properties
Construction and Building Materials,
Год журнала:
2024,
Номер
458, С. 139690 - 139690
Опубликована: Дек. 24, 2024
Язык: Английский