Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: March 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
Chemistry of Materials,
Journal Year:
2023,
Volume and Issue:
35(7), P. 2661 - 2682
Published: March 24, 2023
The
insolubility
in
solvents
and
poor
processability
of
powder
covalent
organic
frameworks
(COFs)
considerably
impede
their
practical
application.
To
address
these
issues
bridge
the
gap
between
COFs
application,
construction
monolithic
has
emerged
as
a
feasible
effective
solution.
Monolithic
(i.e.,
macroscopic
three-dimensional
architectures)
with
hierarchical
structures
have
attracted
tremendous
interest
for
environmental
remediation
exhibited
good
contaminant
removal
performances
owing
to
wide
distribution
pore
sizes
ranging
from
micropores
macropores,
large
specific
surface
area,
tailored
chemical
components,
excellent
stability.
can
be
either
pure
self-supporting
or
composites
other
materials.
resulting
COF-based
monoliths
inherit
merits
parent
(such
tunable
size,
structure,
super
chemical/thermal
stability)
intriguing
features
materials,
such
high
porosity,
easy
handling,
endowing
them
fast
mass
transfer
adsorption
capacity.
This
review
provides
comprehensive
summary
recent
advances
synthesis
COF
Additionally,
progress
application
is
summarized,
including
metal-ion
removal,
organic-pollutant
capture,
oil–water
separation.
Furthermore,
this
discusses
current
challenges
future
perspectives.
We
sincerely
hope
that
it
will
contribute
further
development
materials
fields,
especially
remediation.
Journal of the American Chemical Society,
Journal Year:
2022,
Volume and Issue:
144(51), P. 23534 - 23542
Published: Dec. 13, 2022
Polyimide
covalent
organic
framework
(PI-COF)
materials
that
can
realize
intrinsic
redox
reactions
by
changing
the
charge
state
of
their
electroactive
sites
are
considered
as
emerging
electrode
for
rechargeable
devices.
However,
highly
crystalline
PI-COFs
with
hierarchical
porosity
less
reported
due
to
rapid
reaction
between
monomers
and
poor
reversibility
polyimidization
reaction.
Here,
we
developed
a
water-assistant
synthetic
strategy
adjust
rate
polyimidization,
PI-COF
(COFTPDA-PMDA)
kgm
topology
consisting
dual
active
centers
N,N,N′,N′-tetrakis(4-aminophenyl)-1,4-benzenediamine
(TPDA)
pyromellitic
dianhydride
(PMDA)
ligands
was
successfully
synthesized
high
crystallinity
porosity.
The
COFTPDA-PMDA
possesses
micro-/mesoporous
channels
largest
surface
area
(2669
m2/g)
in
PI-COFs,
which
promote
Li+
ions
bulky
bis(trifluoromethanesulfonyl)imide
(TFSI–)
electrolyte
sufficiently
interact
on
COF
skeleton
increase
specific
capacity
cathode
materials.
As
material
lithium-ion
batteries,
COFTPDA-PMDA@50%CNT
integrated
center
carbon
nanotubes
via
π–π
interactions
gave
initial
233
mAh/g
(0.5
A/g)
maintains
at
80
even
current
density
5.0
A/g
after
1800
cycles.
Science,
Journal Year:
2024,
Volume and Issue:
383(6686), P. 1014 - 1019
Published: Feb. 29, 2024
The
imine-exchange
strategy
makes
single-crystal
growth
of
covalent
organic
frameworks
(COFs)
with
large
size
(>15
microns)
possible
but
is
a
time-consuming
process
(15
to
80
days)
that
has
had
limited
success
(six
examples)
and
restricts
structural
characterization
synchrotron-radiation
sources
for
x-ray
diffraction
studies.
We
developed
CF
Green Energy & Environment,
Journal Year:
2023,
Volume and Issue:
9(2), P. 217 - 310
Published: Jan. 3, 2023
Carbon
peaking
and
carbon
neutralization
trigger
a
technical
revolution
in
energy
&
environment
related
fields.
Development
of
new
technologies
for
green
production
storage,
industrial
saving
efficiency
reinforcement,
capture,
pollutant
gas
treatment
is
highly
imperious
demand.
The
emerging
porous
framework
materials
such
as
metal–organic
frameworks
(MOFs),
covalent
organic
(COFs)
hydrogen-bonded
(HOFs),
owing
to
the
permanent
porosity,
tremendous
specific
surface
area,
designable
structure
customizable
functionality,
have
shown
great
potential
major
energy-consuming
processes,
including
sustainable
catalytic
conversion,
energy-efficient
separation
storage.
Herein,
this
manuscript
presents
systematic
review
global
comprehensive
applications,
from
macroscopic
application
perspective.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
62(1)
Published: Nov. 8, 2022
Synthesizing
large-area
free-standing
covalent
organic
framework
(COF)
films
is
of
vital
importance
for
their
applications
but
still
a
big
challenge.
Herein,
we
reported
the
synthesis
large
metalloporphyrin-based
COF
and
oxygen
electrocatalysis.
The
reaction
meso-benzohydrazide-substituted
metal
porphyrins
with
tris-aldehyde
linkers
afforded
at
liquid-air
interface.
These
can
be
scaled
up
to
3000
cm2
area
display
great
mechanical
stability
structural
integrity.
Importantly,
Co-porphyrin-based
are
efficient
electrocatalytic
O2
reduction
evolution
reactions.
A
flexible,
all-solid-state
Zn-air
battery
was
assembled
using
showed
high
performance
charge-discharge
voltage
gap
0.88
V
1
mA
cm-2
under
bent
conditions
(0°
180°).
This
work
thus
presents
strategy
synthesize
functionalized
quality
uses
in
flexible
electronics.
Green Energy & Environment,
Journal Year:
2022,
Volume and Issue:
8(6), P. 1596 - 1618
Published: May 14, 2022
Covalent
organic
frameworks
(COFs),
as
an
emerging
class
of
porous
crystalline
materials
constructed
by
covalent
links
between
the
building
monomers,
have
gained
tremendous
attention.
Over
past
15
years,
COFs
made
rapid
progress
and
substantial
development
in
chemistry
fields.
However,
synthesis
has
been
dominated
solvothermal
methods
for
a
long
time
it
usually
involves
high
temperature,
pressure
toxic
solvents,
which
created
many
challenges
environmental
considerations.
Recently,
exploration
new
approaches
facile
fabrication
aroused
extensive
interest.
Hence,
this
review,
we
comprehensively
describe
synthetic
strategies
from
aspects
nonconventional
heating
reaction
media.
In
addition,
advantages,
limitations
properties
preparation
are
compared.
Finally,
outline
main
prospects
future
propose
some
possible
solutions.
