Revue Roumaine de Chimie,
Год журнала:
2024,
Номер
69(10-12), С. 621 - 627
Опубликована: Окт. 10, 2024
In
the
present
study,
Polypyrrole
(PPySO4)
thin
films
are
obtained
through
electropolymerization
of
pyrrole
on
Ti6Al4V
(TA6V)
alloy
substrate
(PPySO4/
TA6V)
by
using
cyclic
voltammetry
(CV).
Structure,
surface
morphology
and
electrochemical
properties
PPySO4/
TA6V
were
studied
Scanning
Electron
Microscope
(SEM)
coupled
with
energy
dispersive
X-ray
spectrometry
(EDX),
diffraction
spectroscopy
(DRX),
Raman
(RAMAN),
photoelectron
(XPS)
impedance
(SIE)
Membranes,
Год журнала:
2024,
Номер
14(6), С. 121 - 121
Опубликована: Май 23, 2024
As
a
central
component
for
anion
exchange
membrane
fuel
cells
(AEMFCs),
the
is
now
facing
challenge
of
further
improving
its
conductivity
and
alkali
stability.
Herein,
twisted
all-carbon
backbone
designed
by
introducing
stereo-contorted
units
with
piperidinium
groups
dangled
at
sites.
The
rigid
improves
conduction
hydroxide
brings
down
squeezing
effect
on
piperidine
rings.
Accordingly,
an
prepared
through
this
method
exhibits
adapted
OH−
conductivity,
low
swelling
ratio
excellent
stability,
even
in
high
concentrations.
Further,
cell
assembled
such-prepared
can
reach
power
density
904.2
mW/cm2
be
capable
continuous
operation
over
50
h.
These
results
demonstrate
that
has
good
potential
applications
AEMFCs.
Advanced Nanocomposites,
Год журнала:
2024,
Номер
1(1), С. 275 - 289
Опубликована: Янв. 1, 2024
Recent
advancements
in
flexible
and
stretchable
electronics
have
underscored
the
critical
importance
of
maintaining
essential
electrical
properties
under
stretching
conditions,
especially
wearable
technology.
The
integration
conductors
into
devices,
such
as
soft
sensors
batteries,
highlights
efforts
to
enhance
durability
performance.
Despite
extensive
studies
development
conductors,
impedance
characteristics
electrodes
largely
evaded
in-depth
examination
within
existing
literature.
This
review
paper
aims
bridge
this
gap
by
offering
a
comprehensive
overview
recent
both
material
structural
designs
tailored
for
property
electrodes.
It
delves
exploration
various
conductive
materials,
including
metals,
liquid
conducting
polymers,
hydrogels,
textiles,
each
unique
suited
specific
applications.
Moreover,
it
discusses
diverse
fabrication
methods
employed,
direct
mixing,
surface
coating/deposition,
printing,
specialized
techniques
creating
electrically
networks.
Beyond
strategies,
also
explores
innovative
concepts
capable
accommodating
large
deformations,
serpentine,
coiled,
Kirigami,
open-mesh
structures.
These
not
only
mechanical
resilience
but
contribute
their
performance,
particularly
low
electronic
Finally,
provides
insights
emerging
applications
nanocomposites
with
electronics,
addressing
key
challenges
discussing
future
research
directions.
Journal of Applied Polymer Science,
Год журнала:
2024,
Номер
142(13)
Опубликована: Дек. 30, 2024
ABSTRACT
Anion
exchange
membranes
(AEMs)
are
extensively
utilized
across
various
domains
due
to
their
remarkable
performance.
Nonetheless,
AEMs
continue
encounter
significant
challenges
related
thermal
stability,
alkaline
and
ion
conductivity.
Advanced
molecular
design
the
precise
incorporation
of
functional
groups
pivotal
for
enhancing
properties.
In
this
work,
norbornene
monomer
was
produced
from
5‐norbornene‐2‐methanol.
One
featured
an
extensive
alkyl
side
chain,
while
other
included
a
long
bromine
chain.
These
monomers
were
subsequently
used
synthesize
diblock
polynorbornene
copolymer.
Finally,
cyclotriphosphazene
based
hexa‐imidazole
compounds
designed
using
crosslinked
with
long,
flexible
chains
by
Menschutkin
reaction.
The
chain
structure
block
effectively
promoted
phase
separation,
high
concentration
imidazole
facilitated
aggregation
into
distinct
domains.
As
result,
series
anion
(aPNB‐CTPP‐2MI‐x)
fabricated
approach
demonstrated
excellent
ionic
conductivity,
alkaline,
heat
resistance.
Notably,
aPNB‐CTPP‐2MI‐1.75
membrane
achieved
conductivity
exceeding
100
mS
cm
−1
at
80°C,
swelling
degree
only
11.96%.
Even
after
576
h
immersion
in
1
M
NaOH
solution
(80°C),
remained
above
86.83%.
