Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(14)
Published: Dec. 25, 2023
The
inability
to
process
many
covalent
organic
frameworks
(COFs)
as
thin
films
plagues
their
widespread
utilization.
Herein,
a
vapor-phase
pathway
for
the
bottom-up
synthesis
of
class
porphyrin-based
COFs
is
presented.
This
approach
allows
integrating
electrocatalysts
made
metal-ion-containing
into
electrodes'
architectures
in
single-step
and
deposition.
By
precisely
controlling
metal
sites
at
atomic
level,
remarkable
electrocatalytic
performance
achieved,
resulting
unprecedentedly
high
mass
activity
values.
How
choice
atoms,
i.e.,
cobalt
copper,
can
determine
catalytic
activities
POR-COFs
demonstrated.
theoretical
data
proves
that
Cu
site
highly
active
nitrate
conversion
ammonia
on
synthesized
COFs.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(46), P. 53924 - 53934
Published: Nov. 8, 2023
Covalent
organic
frameworks
(COFs)
with
tunable
pore
sizes
and
ordered
structures
are
ideal
materials
for
engineering
nanofiltration
(NF)
membranes.
However,
most
of
the
COFs
prepared
by
solvothermal
synthesis
unprocessable
powders
fail
to
form
well-structured
membranes,
which
seriously
hinders
development
COF
NF
Herein,
colloidal
2D-COFs
processable
membrane
formation
ability
were
synthesized
oil-in-water
emulsion
interfacial
polymerization
technology.
membranes
tailored
thickness
surface
charge
fabricated
via
a
layer-by-layer
(LBL)
assembly
strategy.
The
achieved
precise
sieving
dye
molecules
high
permeance
(85
L·m-2·h-1·bar-1).
In
this
work,
strategy
based
on
colloid
2D-COF
LBL
is
proposed
first
time,
provides
new
idea
on-demand
design
preparation
molecular
sieving.
Science Advances,
Journal Year:
2024,
Volume and Issue:
10(39)
Published: Sept. 25, 2024
Advancing
membranes
with
enhanced
solute-solute
selectivity
is
essential
for
expanding
membrane
technology
applications,
yet
it
presents
a
notable
challenge.
Drawing
inspiration
from
the
unparalleled
of
biological
systems,
which
benefit
sophisticated
spatial
organization
functionalities,
we
posit
that
manipulating
arrangement
membrane’s
building
blocks,
an
aspect
previously
given
limited
attention,
can
address
this
We
demonstrate
optimizing
face-to-face
orientation
blocks
during
assembly
covalent-organic-framework
(COF)
improves
ion-π
interactions
multivalent
ions.
This
optimization
leads
to
extraordinary
in
differentiating
between
monovalent
cations
and
anions
their
counterparts,
achieving
factors
214
K
+
/Al
3+
451
NO
3
−
/PO
4
3−
.
Leveraging
attribute,
COF
facilitates
direct
extraction
NaCl
seawater
purity
99.57%.
These
findings
offer
alternative
approach
designing
highly
selective
materials,
offering
promising
prospects
advancing
membrane-based
technologies.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(14)
Published: Dec. 25, 2023
The
inability
to
process
many
covalent
organic
frameworks
(COFs)
as
thin
films
plagues
their
widespread
utilization.
Herein,
a
vapor-phase
pathway
for
the
bottom-up
synthesis
of
class
porphyrin-based
COFs
is
presented.
This
approach
allows
integrating
electrocatalysts
made
metal-ion-containing
into
electrodes'
architectures
in
single-step
and
deposition.
By
precisely
controlling
metal
sites
at
atomic
level,
remarkable
electrocatalytic
performance
achieved,
resulting
unprecedentedly
high
mass
activity
values.
How
choice
atoms,
i.e.,
cobalt
copper,
can
determine
catalytic
activities
POR-COFs
demonstrated.
theoretical
data
proves
that
Cu
site
highly
active
nitrate
conversion
ammonia
on
synthesized
COFs.
