Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 28, 2025
Abstract
The
degradation
of
fluorinated
refrigerants,
known
for
their
highly
stable
carbon‐fluorine
(C─F)
bonds,
poses
significant
environmental
and
technical
challenges.
This
review
addresses
these
challenges
by
analyzing
two
core
mechanisms:
molecular
polarization
(MP)
free
radical
attack
(FRA),
exploring
applications
in
thermal
catalytic
photocatalytic
processes.
MP
redistributes
electron
density
to
weaken
C─F
facilitating
adsorption
bond
cleavage,
while
involves
reactive
species
that
directly
break
chemical
bonds.
However,
both
mechanisms
have
limitations:
alone
may
lack
the
kinetic
drive
dissociation,
radical‐based
methods
often
suffer
from
low
selectivity,
short
lifetimes,
formation
toxic
intermediates.
section
on
discusses
how
elevated
temperatures
enhance
cleavage
through
MP,
addressing
accelerating
dissociation.
part
focuses
role
light‐activated
processes
generating
radicals
breaking,
with
an
emphasis
visible
ultraviolet
light‐driven
reactions.
concludes
potential
hybrid
systems
combine
processes,
providing
insights
into
complementary
use
persistent
compounds.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 28, 2025
Abstract
The
degradation
of
fluorinated
refrigerants,
known
for
their
highly
stable
carbon‐fluorine
(C─F)
bonds,
poses
significant
environmental
and
technical
challenges.
This
review
addresses
these
challenges
by
analyzing
two
core
mechanisms:
molecular
polarization
(MP)
free
radical
attack
(FRA),
exploring
applications
in
thermal
catalytic
photocatalytic
processes.
MP
redistributes
electron
density
to
weaken
C─F
facilitating
adsorption
bond
cleavage,
while
involves
reactive
species
that
directly
break
chemical
bonds.
However,
both
mechanisms
have
limitations:
alone
may
lack
the
kinetic
drive
dissociation,
radical‐based
methods
often
suffer
from
low
selectivity,
short
lifetimes,
formation
toxic
intermediates.
section
on
discusses
how
elevated
temperatures
enhance
cleavage
through
MP,
addressing
accelerating
dissociation.
part
focuses
role
light‐activated
processes
generating
radicals
breaking,
with
an
emphasis
visible
ultraviolet
light‐driven
reactions.
concludes
potential
hybrid
systems
combine
processes,
providing
insights
into
complementary
use
persistent
compounds.
