Abstract
The
heightening
concerns
over
an
outbreak
of
hazardous
radioiodine
from
nuclear
waste
and
carbon
dioxide
emissions
fossil
fuels
have
restricted
access
to
clean
water
air.
In
this
work,
three
Cd‐MOFs
(
1
‐
3
)
are
self‐assembled
under
environment‐friendly
conditions
using
i)
a
polypyridyl
linker
spanned
by
flexible
poly(methylene)
spacer,
ii)
bent
dicarboxylate
linker.
With
change
in
the
length
methylene
dimensionality
MOFs
is
tuned
between
3D
2D
2
).
microscopic
images
reveal
that
displays
larger
particle
sizes
more
pronounced
morphology
compared
.
These
show
high
thermal
stability
(up
300
°C)
wettability.
A
controlled
polar
feature
utilized
achieve
uptake
capacity
iodine
(I
or
I
−
bodies
(2.46–2.37
g
−1
vapor
(3.31–2.65
remarkable
CO
,
sorbate
further
fixated
into
market‐value
products
quantitative
conversions
atom
economy
room
temperature
solvent‐free
conditions.
comprehensive
theoretical
support
provided
configurational
biased
Monte
Carlo
(CBMC)
simulations
exact
locale
binding
energies
sorbates
epoxide)
toward
these
MOFs.
ACS Catalysis,
Год журнала:
2025,
Номер
unknown, С. 1305 - 1340
Опубликована: Янв. 7, 2025
Converting
CO2
into
valuable
chemicals
is
an
effective
way
to
alleviate
the
high
level
of
global
CO2.
The
cycloaddition
reaction
and
propylene
oxide
(PO)
has
atomic
economy
advantage
environmental
friendliness
compared
with
traditional
phosgene
method
carbonate
(PC).
Due
chemical
inertness
CO2,
catalysts
are
needed
make
proceed
smoothly.
Through
rational
design,
a
multifunctional
catalyst
that
combines
activation
sites
attack
PO
adsorption
can
be
formed.
At
same
time,
use
harmful
substances
reduced
by
making
catalytic
process
more
environmentally
friendly.
In
this
work,
we
discuss
research
progress
synthesis
PC
from
PO.
Starting
mechanism,
system
summarized
perspective
design.
homogeneous
catalysts,
focus
on
effect
composition
performance.
heterogeneous
heterogenization
(preparation
methods),
including
supported,
confined,
polymerized
catalysts.
addition,
promising
photocatalysis
biomass
catalysis
especially
introduced.
Finally,
in
order
experimental
results
move
toward
industrial
production,
several
problems
existing
industrialization
discussed,
production
equipment,
influence
source,
product/catalyst
separation.
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 21, 2025
Utilization
of
carbon
dioxide
(CO2)
as
a
C1
feedstock
to
synthesize
value-added
chemicals
using
catalyst
made
from
earth-abundant
elements
and
under
mild
conditions
is
sustainable
approach
toward
neutrality
but
difficult
achieve.
Herein,
the
CoAl2O4/Al2O3
composite
developed
used
for
light-driven
epoxide
cyclic
carbonate
conversion
CO2.
catalysts
(x%
Co–Al2O3)
are
prepared
by
calcining
cobalt-incorporated
Al-oxy-hydroxide
at
500
°C
an
air
atmosphere.
The
15%
Co–Al2O3
(57%
Al2O3
43%
CoAl2O4)
shows
highest
photothermal
efficiency
(η
=
66%)
well
catalytic
activity
CO2
fixation
into
epoxides
generate
carbonates
1
atm
pressure
solvent-free
(300
W
xenon
lamp).
displays
good
selectivity
synthesis
series
(>95%)
with
yield
in
presence
tetra
butyl
ammonium
iodide
(TBAI)
cocatalyst
(2
mol
%
respect
epoxide).
Under
optimized
reaction
parameters,
retains
its
up
8
cycles
catalysis
without
losing
chemical
integrity.
mechanism
proposed
based
on
structure–photothermal
conversion-catalytic
relationship
study
few
control
experiments.
design
development
photocatalyst
Al
element
user-friendly
make
this
economy.
