Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 20, 2025
Abstract
Covalent
organic
frameworks
(COFs)
are
an
emerging
class
of
porous
materials
with
diverse
applications
across
multiple
fields.
Most
the
ongoing
research
related
to
COFs
predominantly
focuses
on
developing
new
through
novel
linkers
and
innovative
reactions,
as
well
exploring
their
applications.
A
detailed
molecular-level
understanding
COF
synthesis
is
essential
for
advanced
materials.
The
water
structure
adjacent
can
significantly
influence
design
highly
efficient
heterogeneous
catalysis,
photocatalytic
splitting,
purification,
aid
in
charge
storage
mechanism
COF-based
electrodes
at
electrode/electrolyte
interfaces.
To
address
this
issue,
we
synthesized
a
2D
thin
film
via
photon-assisted
imine
condensation
water-air
interface
investigated
process
using
vibrational
sum
frequency
generation
(VSFG)
spectroscopy.
We
examined
role
catalyst,
light,
interfacial
molecules
COF.
VSFG
spectroscopy
utilized
successfully
distinguish
between
amorphous
crystalline
films
surface.
Moreover,
it
was
found
that
exhibits
increased
ordering
stronger
hydrogen
bonding
proximity
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
Abstract
Imide
covalent
organic
frameworks
(COFs)
are
considered
promising
materials
in
various
fields
due
to
their
exceptional
stability,
large
surface
area,
and
high
porosity.
However,
current
synthesis
methods
of
imide
COFs
typically
involve
complex
vacuum
operations,
amounts
solvents,
long
reaction
times
at
temperatures,
limiting
scalability
for
industrial
production.
Herein,
a
facile
self‐accelerated
strategy
is
developed
rapid,
low‐cost,
large‐scale
eight
(SACOFs)
under
solvent‐free,
vacuum‐free,
low‐temperature
conditions.
Mechanistic
studies
reveal
that
the
driven
by
self‐generated
water
atmospheric
conditions,
which
accelerates
reversible
self‐healing
disordered
polymers,
ultimately
leading
rapid
highly
crystalline
COFs.
Notably,
only
additive
required
besides
COF
monomers
o
‐substituted
benzoic
acid,
small
amount
grafted
onto
COFs,
enabling
straightforward
functionalization.
Thiol‐functionalized
SACOFs
synthesized
as
supports
anchoring
Pd
nanoparticles.
The
as‐prepared
Pd@SACOFs
exhibit
activity
selectivity
hydrogenation
substituted
nitrobenzene
modulation
thiol
groups.
synthetic
enables
production
potentially
paving
way
transition
from
laboratory
research
commercial
applications.
