Applied investigation of novel dual-anionic imidazolium-based organic polymers for CO2 conversion and iodine vapor adsorption
Shuangshuo Li,
No information about this author
Xionglei Wang,
No information about this author
Xuanbo Liu
No information about this author
et al.
Chemical Engineering Journal,
Journal Year:
2025,
Volume and Issue:
unknown, P. 160676 - 160676
Published: Feb. 1, 2025
Language: Английский
Synthesis of Three-Dimensional Porous Porphyrin Poly(ionic liquid)s via the Menshutkin Reaction: Designing Metal-Free and Metal-Based Catalysts for Efficient Conversion of CO2 into Cyclic Carbonates
Kechi Chen,
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Jianxin Huang,
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Zhiyuan Chen
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et al.
Industrial & Engineering Chemistry Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 3, 2025
Poly(ionic
liquid)s
(PILs)
are
considered
efficient
and
attractive
heterogeneous
catalysts
for
CO2
cycloaddition
with
epoxides
because
of
the
reactions
that
proceed
without
cocatalysts
solvents.
Nowadays,
it
is
widely
believed
preparation
PILs
can
be
simply
realized
via
common
monomers
by
Menshutkin
reaction,
but
most
exhibit
low
surface
areas
due
to
intermolecular
packing.
It
a
challenge
obtain
porous
diverse
functional
groups
activate
substrates.
In
this
contribution,
we
utilized
Menshutkin-type
reaction
three-dimensional
contorted
manufacture
new
kind
porphyrin-functionalized
microporous
PIL
first
time.
worth
noting
metal-free
containing
porphyrin,
imidazole,
imidazolium
active
promote
activation
achieve
cycloadditions
under
relatively
mild
conditions.
After
metalation,
their
catalytic
activities
have
been
enhanced
significantly
more
moderate
Moreover,
both
metal-based
recycled
at
least
six
times
any
obvious
decrease
in
activity.
Finally,
apparent
activated
energies
calculated
from
kinetic
study
demonstrate
possible
mechanism.
This
work
not
only
provides
an
strategy
constructing
designing
also
highlights
promising
method
activating
converting
into
fine
chemicals
Language: Английский
Pyridine-based ionic liquid with Sn site as an efficient catalyst for CO2 cycloaddition
Weiyu Ge,
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Shuai Zheng,
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Dongyu Jin
No information about this author
et al.
Chemical Engineering Journal,
Journal Year:
2025,
Volume and Issue:
unknown, P. 163303 - 163303
Published: May 1, 2025
Language: Английский
Linker-induced morphology of urea-functionalized ionic polymers for carbon dioxide immobilization and iodine separation
Separation and Purification Technology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 133643 - 133643
Published: May 1, 2025
Language: Английский
Lewis Acid‐Base Bifunctional Ionic Covalent Organic Frameworks for CO2 Chemical Fixation
Ping Liu,
No information about this author
Tiantong Zhao,
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Zhao Fang-fang
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et al.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 23, 2025
Abstract
Ionic
covalent
organic
frameworks
(iCOFs)
exhibit
unique
advantages
as
heterogeneous
catalysts
due
to
their
permanent
porosity,
programmable
charge
transport,
and
tunable
host‐guest
interactions.
Here,
the
fabrication
of
cationic
iCOFs
via
direct
solvothermal
assembly
integrate
zinc
ions
(Zn(II))‐imine
centers
are
reported
construct
bifunctional
catalysts.
The
resultant
catalyst,
Zn@PD‐iCOF,
achieves
remarkable
yields
(up
99%)
cyclic
carbonates
in
carbon
dioxide
(CO
2
)‐epoxides
cycloaddition
reactions
under
mild
conditions
(at
80
°C,
0.1
MPa
CO
)
without
need
for
co‐catalysts
solvents,
superior
most
previously
ionic
This
exceptional
performance
stems
from
hierarchically
ordered
pores
structure,
fully
exposed
dual
active
sites
(ion
pair
Lewis
acid
site),
synergistic
electronic
coupling.
Moreover,
catalyst
retains
>90%
activity
over
twelve
consecutive
cycles,
demonstrating
stability.
study
establishes
a
blueprint
designing
task‐specific
COFs
efficient
chemical
fixation.
Language: Английский
Custom-built charged covalent-organic polymer for elevated-temperature boosted separation cum selective and benign fixation of CO2 with bi-phasic iodine scavenging
Chemical Engineering Journal,
Journal Year:
2024,
Volume and Issue:
unknown, P. 158981 - 158981
Published: Dec. 1, 2024
Language: Английский
The efficient metal- and halogen-free polymer catalyst for the intensification on CO2 cycloaddition
Yuanye Zhuang,
No information about this author
Shiyang Bai,
No information about this author
Ge Meng
No information about this author
et al.
Applied Catalysis A General,
Journal Year:
2024,
Volume and Issue:
unknown, P. 119996 - 119996
Published: Oct. 1, 2024
Language: Английский
Continuous CO2 cycloaddition to cyclic carbonate in a membrane dispersion enhanced fixed-bed reactor
Zhengyan Qu,
No information about this author
Yingfan Wang,
No information about this author
Jiuxuan Zhang
No information about this author
et al.
Chemical Engineering Science,
Journal Year:
2024,
Volume and Issue:
302, P. 120927 - 120927
Published: Nov. 12, 2024
Language: Английский
Conversion of CO2 to cyclic carbonates using metal- and halogen-free Lewis pairs
Jialong Ou,
No information about this author
Ziyang Xu,
No information about this author
Quanlan Liao
No information about this author
et al.
Fuel,
Journal Year:
2024,
Volume and Issue:
382, P. 133651 - 133651
Published: Nov. 16, 2024
Language: Английский
A New Aluminum Porphyrin-Based Porous Hyper-Cross-Linked Polymer Modified by Imidazolium Salts for Cooperative Conversion of CO2 into Cyclic Carbonates under Mild Conditions
Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 22, 2024
Metalloporphyrin-based
porous
organic
polymers
that
behave
as
advanced
biomimetic
nanoreactors
have
drawn
continuous
attention
for
heterogeneous
CO2
cycloaddition
conversion
in
the
past
decades.
However,
use
of
homogeneous
onium
salts,
usually
acting
nucleophilic
cocatalysts,
may
increase
cost
product
purification
and
cause
additional
environmental
problems.
In
this
contribution,
a
new
aluminum
porphyrin-based
hyper-cross-linked
polymer
modified
by
imidazolium
salts
(denoted
Im@Al-HCP)
has
been
successfully
constructed
first
time.
The
two-step
process
hyper-cross-linking
reaction
combined
with
postsynthetic
modification
endows
catalyst
large
surface
area
(about
213
m2·g–1),
good
adsorption
capacity
(up
to
1.45
mmol·g–1),
highly
dispersed
cooperative
active
sites.
Accordingly,
bifunctional
Im@Al-HCP
exhibits
an
outstanding
catalytic
activity,
recyclability,
broad
substrate
generality
without
cocatalysts
solvents
under
mild
conditions.
particular,
high
turnover
frequency
(TOF)
value
up
5000
h–1
can
be
acquired,
which
far
exceeds
most
reported
catalysts
identical
addition,
as-made
recycled
at
least
six
times
obvious
loss
activity.
This
work
not
only
bring
some
inspirations
construction
multifunctional
but
also
provides
great
potential
industrial
applications
cycloadditions.
Language: Английский