Langmuir,
Год журнала:
2024,
Номер
40(31), С. 16419 - 16429
Опубликована: Июль 23, 2024
Postsynthetic
linker
exchange
(PLE)
has
emerged
as
an
emerging
synthetic
strategy
for
constructing
high-quality
covalent
organic
frameworks
(COFs)
from
preassembled
entities
such
linear
polymers,
amorphous
networks,
COFs,
and
porous
cages
by
using
the
principles
of
dynamic
chemistry.
The
PLE
recently
been
extended
at
liquid-liquid
interface
to
fabricate
highly
crystalline
two-dimensional
(2D)-COF
membranes
a
faster
time
scale
(24
h).
Examining
early
stages
interfacial
dynamics
becomes
essential
understanding
expedited
COF
growth
process.
In
this
regard,
pendant
drop
tensiometry
employed
probe
initial
reaction
imine
cage-to-COF
transformation
through
tension
(IFT)
measurements.
contrasting
trends
in
IFT
profiles
between
PLE-mediated
(from
cage)
direct
synthesis
parent
monomers)
are
qualitative
agreement
with
kinetics
bulk-scale
polymerizations.
Further,
distinct
early-stage
behaviors
diverse
routes
have
experimentally
demonstrated
tensiometry,
optical
microscopy,
electron
powder
X-ray
diffraction
(PXRD)
analysis.
pivotal
role
situ
generated
intermediates
(ImIs)
phenomenon
spontaneous
emulsification
toward
accelerated
process
was
delineated.
current
study
on
deploying
tensiometric
technique
examine
polymerization
opens
up
gripping
avenue
mechanistic
exploration
PLE-based
synthesis.
generality
developed
methodology
new
transformation.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Март 10, 2024
Abstract
Covalent
organic
frameworks
(COFs)
attract
significant
attention
due
to
their
ordered,
crystalline,
porous,
metal‐free,
and
predictable
structures.
These
unique
characteristics
offer
great
opportunities
for
the
diffusion
transmission
of
photogenerated
charges
during
photocatalysis.
Currently,
a
considerable
number
COFs
are
used
as
metal‐free
semiconductor
photocatalysts.
This
review
aims
understand
relationships
between
structure
photocatalysis
performance
provides
in‐depth
insight
into
synthetic
strategy
improve
performance.
Subsequently,
focuses
on
structural
motif
in
sustainable
photocatalytic
hydrogen
evolution,
carbon
dioxide
reduction,
peroxide
generation,
compound
transformations.
Last,
conjunction
with
progress
achieved
challenges
yet
be
overcome,
candid
discussion
is
undertaken
regarding
field
COF
photocatalysis,
accompanied
by
presentation
potential
research
avenues
future
directions.
seeks
provide
readers
comprehensive
understanding
pivotal
role
robust
guidance
innovative
utilization
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(11)
Опубликована: Ноя. 27, 2023
Abstract
Covalent
organic
frameworks
(COFs)
are
crystalline
porous
polymers
that
can
be
precisely
integrated
by
building
blocks
to
achieve
pre‐designed
composition,
components,
and
functions,
making
them
a
powerful
platform
for
the
development
of
molecular
devices
in
field
electrocatalysis.
The
precise
control
channel/dopant
positions
highly
ordered
network
structures
COFs
provide
an
ideal
material
system
applications
advanced
In
this
paper,
topological
structure
design
synthesis
methods
reviewed
detail,
their
principles
deeply
analyzed.
addition,
derivatives
electrocatalysis
systematically
summarized
optimization
strategies
proposed.
Finally,
application
prospects
challenges
may
encountered
future
prospected,
providing
helpful
guidance
research.
Chemical Society Reviews,
Год журнала:
2024,
Номер
53(4), С. 2056 - 2098
Опубликована: Янв. 1, 2024
Non-CO
2
greenhouse
gas
mitigation
and
recovery
with
advanced
porous
materials
(MOFs,
COFs,
HOFs,
POPs,
etc.
)
would
significantly
contribute
to
achieving
carbon
neutrality
gain
economic
benefits
concurrently.
Science,
Год журнала:
2024,
Номер
386(6722), С. 693 - 696
Опубликована: Ноя. 7, 2024
Developing
porous
materials
with
ultrahigh
surface
areas
for
gas
storage
(for
example,
methane)
is
attractive
but
challenging.
Here,
we
report
two
isostructural
three-dimensional
covalent
organic
frameworks
(COFs)
a
rare
self-catenated
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(5), С. 3449 - 3457
Опубликована: Янв. 25, 2024
The
core
features
of
covalent
organic
frameworks
(COFs)
are
crystallinity
and
porosity.
However,
the
synthesis
single-crystal
COFs
with
monomers
diverse
reactivity
adjustment
their
pore
structures
remain
challenging.
Here,
we
show
that
linkers
can
react
a
node
to
form
guide
other
either
or
amorphous
polymers
gain
mixed
components,
which
homogeneous
on
unit
cell
scale
controlled
ratios.
With
linker-guided
crystal
growth
method,
created
nine
types
up
different
more
complex
than
any
known
crystal.
structure
adapted
approximately
main
component,
its
volume
could
be
expanded
8.8%.
Different
components
lead
offer
possibilities
positive
synergies,
as
exemplified
by
bicomponent
COF
2200
733%
SO2
uptake
capacity
two
pure-component
counterparts
at
298
K
0.002
bar.
selectivity
for
separation
SO2/CO2
ranges
from
1230
4247
flue
gas
based
ideal
adsorbed
solution
theory,
recording
porous
crystals.
also
exhibits
1300%
retention
time
in
dynamic
column
breakthrough
experiment
deep
desulfurization.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 2, 2025
Furthering
the
field
of
synthetic
organic
chemistry
from
discrete
molecules
regime
to
extended
structure
regime,
covalent
frameworks
(COFs)
represent
a
new
genre
crystalline
porous
materials
featuring
designability
with
molecular-level
precision,
well-defined
porosity,
and
exceptional
stability
imparted
by
robust
linkages
reticulating
molecules.
The
topology
COFs
is
principal
feature
that
regulates
their
functionality
usability
for
emerging
technologies.
Profound
comprehension
network
topologies
maneuvering
them
toward
targeted
applications
are
crucial
advancing
realm
COF
research
developing
novel
functional
exciting
breakthroughs.
In
this
Perspective,
we
discuss
recent
pursuits
contributing
discovery
highly
connected
nets
having
topologies,
assess
key
challenges
achieving
such
offer
insights
into
current
scenario
future
directions.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Март 10, 2024
Abstract
Growing
single
crystals
of
covalent
organic
polymers
(COPs)
for
single‐crystal
X‐ray
diffraction
analysis
is
very
important
and
highly
desirable
because
such
strategy
provides
a
deep
understanding
crystallization
kinetics
the
structure‐property
relationship
COPs.
Based
on
that
dynamic
bonds
can
allow
self‐correction
structures
during
crystal
growth,
two
COPs
(
CityU‐15
CityU‐16
)
based
dative
boron‐nitrogen
(B─N)
have
been
successfully
obtained.
Detailly,
tetra(4‐pyridyl)tetrathiafulvalene
(TTF(py)
4
tetra(4‐pyridyl)porphine
(TPYP)
are
employed
as
N‐donor
ligands
to
react
with
1,4‐bis(benzodioxaborole)
benzene
prepare
COPs,
named
,
respectively.
exhibits
enhanced
stability
compared
size
reach
up
0.7
cm.
shows
good
recyclability
reveals
noticeable
photosensitivity
upon
iodine
doping.
After
treatment
iodine,
both
display
obvious
color
changes.
Specially,
device
I
2
‐treated
excellent
low‐voltage
operation
low
energy
consumption
3.3
fJ,
facilitating
development
artificial
vision.
This
work
highlights
successful
introduction
functional
groups
into
B‐N‐containing
opening
new
avenues
expanding
their
applications.
