Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 22, 2025
Abstract
Fluorine‐free
organic
framework
polyelectrolyte
membranes
showing
near
frictionless
ionic
conductivities
are
gaining
cognitive
insights.
However,
the
co‐precipitation
of
COFs
in
often
brings
trade‐offs
to
commission
long‐life
electrochemical
energy
storage
solutions.
Herein,
a
durable
and
ionically
miscible
dual‐ion
exchange
membrane
based
on
triazine
(TOF)
is
designed
for
alkaline
redox
flow
batteries
(RFB).
Bearing
dual
ion‐exchange
architectures,
all‐hydrocarbon
TOF‐based
PEMs
(
s
TOF's)
surpass
fluorinated
Nafion
terms
efficiency
(>80%),
density,
peak
power
densities.
The
fabricated
TOF's
evidenced
highest
net
>2.1
meq
g
−1
which
encourages
electrolyte
utilization
with
≈100%
offers
excellent
capacities.
Moreover,
>97%
efficiencies
preserved,
rate
capability
studies
illustrate
that,
TOF‐5,
RFB
can
operate
at
reduced
overpotentials
(η
≤200
mV)
uplift
life.
supports
successful
demonstrations
higher
redoxolyte
concentrations
thereby
multiplying
afterlife
performance
TOF‐5
revealed
equivalent
fresh
Nafion‐117
surpassed
bearing
>50%
capacity
after
≈3000
continuous
cycles.
With
cell
delivered
(P
max
)
2.3
W
≈60%
than
that
=
1.45
W).
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(19), P. 11392 - 11487
Published: Sept. 20, 2023
From
scientific
and
technological
points
of
view,
poly(vinylidene
fluoride),
PVDF,
is
one
the
most
exciting
polymers
due
to
its
overall
physicochemical
characteristics.
This
polymer
can
crystalize
into
five
crystalline
phases
be
processed
in
form
films,
fibers,
membranes,
specific
microstructures,
being
physical
properties
controllable
over
a
wide
range
through
appropriate
chemical
modifications.
Moreover,
PVDF-based
materials
are
characterized
by
excellent
chemical,
mechanical,
thermal,
radiation
resistance,
for
their
outstanding
electroactive
properties,
including
high
dielectric,
piezoelectric,
pyroelectric,
ferroelectric
response,
best
among
systems
thus
noteworthy
an
increasing
number
technologies.
review
summarizes
critically
discusses
latest
advances
PVDF
copolymers,
composites,
blends,
main
characteristics
processability,
together
with
tailorability
implementation
areas
sensors,
actuators,
energy
harvesting
storage
devices,
environmental
microfluidic,
tissue
engineering,
antimicrobial
applications.
The
conclusions,
challenges
future
trends
concerning
application
also
presented.
Molecules,
Journal Year:
2023,
Volume and Issue:
28(22), P. 7564 - 7564
Published: Nov. 13, 2023
In
contrast
to
some
low-molar-mass
per-
and
polyfluoroalkyl
substances
(PFASs),
which
are
well
established
be
toxic,
persistent,
bioaccumulative,
mobile,
fluoropolymers
(FPs)
water-insoluble,
safe,
bioinert,
durable.
These
niche
high-performance
polymers
fulfil
the
13
polymer-of-low-concern
(PLC)
criteria
in
their
recommended
conditions
of
use.
addition,
more
recent
innovations
(e.g.,
use
non-fluorinated
surfactants
aqueous
radical
(co)polymerization
fluoroalkenes)
from
industrial
manufacturers
FPs
highlighted.
This
review
also
aims
show
how
these
specialty
endowed
with
outstanding
properties
essential
(even
irreplaceable,
since
hydrocarbon
polymer
alternatives
used
similar
fail)
for
our
daily
life
(electronics,
energy,
optics,
internet
things,
transportation,
etc.)
constitute
a
special
family
separate
other
“conventional”
C1–C10
PFASs
found
everywhere
on
Earth
its
oceans.
Furthermore,
information
reports
recycling
unzipping
depolymerization
polytetrafluoroethylene,
PTFE,
into
TFE),
end-of-life
FPs,
risk
assessment,
circular
economy,
regulations.
Various
studies
devoted
environments
involving
though
they
present
volume
(with
yearly
production
330,300
t)
compared
all
plastics
460
million
t).
Complementary
reviews
PFASs,
lack
such
above
data,
this
presents
both
fundamental
applied
strategies
as
evidenced
by
major
FP
producers.
Lubricants,
Journal Year:
2024,
Volume and Issue:
12(4), P. 114 - 114
Published: March 29, 2024
Per-
and
polyfluoroalkyl
substances
(PFAS),
also
known
as
forever
chemicals,
exhibit
exceptional
chemical
stability
resistance
to
environmental
degradation
thanks
their
strong
C-F
bonds
nonpolar
nature.
However,
widespread
use
persistence
have
a
devastating
impact
on
the
environment.
This
review
examines
roles
of
PFAS
in
tribological
applications,
specifically
lubricants
lubricating
systems.
article
focuses
conventional
advanced
lubricants,
including
ionic
liquids
(ILs)
modern
automotive
vehicles.
The
objective
this
paper
is
provide
comprehensive
overview
adverse
impacts
whilst
acknowledging
outstanding
performance
surface
coatings,
composite
materials,
additives
oils
greases.
pathways
through
which
are
introduced
into
environment
via
systems
such
seals
O-rings
identified,
alongside
subsequent
dispersion
routes
interfaces
across
they
interact.
Furthermore,
we
examine
toxicological
implications
exposure
terrestrial
aquatic
life
forms,
plants,
animals,
humans,
along
with
ecological
consequences
bioaccumulation
biomagnification
trophic
levels
ecosystems.
ends
potential
remediation
strategies
for
use,
treatment
technologies,
biodegradation,
recovery
recycling
methods,
search
more
environmentally
benign
alternatives.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
review
covers
the
recent
advances
in
flexible
piezoelectric
materials,
which
show
great
potential
for
strain
sensors
wearable
electronics
and
artificial
intelligence,
focusing
on
microstructure
engineering
fabrication
techniques.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
15(23), P. 8606 - 8624
Published: Jan. 1, 2024
Electrochemistry
shows
promising
new
avenues
in
the
recycling
of
polymeric
materials.
This
work
reviews
electrochemical
depolymerization,
post-polymerization
functionalization,
and
paired
catalysis,
highlighting
future
challenges
opportunities.
