Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
Abstract
Lithium
(Li)
metal
batteries
with
remarkable
energy
densities
are
restrained
by
short
lifetime
and
low
Coulombic
efficiency
(CE),
resulting
from
the
accumulative
Li
dendrites
dead
during
cycling.
Here,
we
prepared
a
new
three‐dimensional
(3D)
covalent
organic
framework
(COF)
dense
lithiophilic
sites
(heteoatom
weight
contents
of
32.32
wt
%)
as
an
anodic
protective
layer
batteries.
The
3D
COF
was
synthesized
using
[6+4]
synthesis
strategy
inducing
flexible
6‐connected
cyclotriphosphazene
derivative
aldehyde
4‐connected
porphyrin‐based
tetraphenylamines.
Both
phosphazene
porphyrin
rings
in
served
electron‐rich
sites,
enhancing
homogeneous
+
flux
via
direction
towards
highly
smooth
compact
deposition.
Li/Por‐PN‐COF‐Cu
cells
achieved
record
average
CE
99.1
%
for
320
cycles
Meanwhile,
abundant
can
promote
fast
transport
transference
number
0.87,
enabling
LiFePO
4
full
cell
stable
stripping/plating
processes
even
at
harsh
rate
5
C.
Theoretical
calculations
revealed
that
strong
interaction
force
between
facilitated
dissolution
electrolyte,
migration
barrier
1.08
eV
indicated
favorable
ions
π‐electron
system.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
Lithium
(Li)
metal
batteries
with
remarkable
energy
densities
are
restrained
by
short
lifetime
and
low
Coulombic
efficiency
(CE),
resulting
from
the
accumulative
Li
dendrites
dead
during
cycling.
Here,
we
prepared
a
new
three-dimensional
(3D)
covalent
organic
framework
(COF)
dense
lithiophilic
sites
(heteoatom
weight
contents
of
32.32
wt
%)
as
an
anodic
protective
layer
batteries.
The
3D
COF
was
synthesized
using
[6+4]
synthesis
strategy
inducing
flexible
6-connected
cyclotriphosphazene
derivative
aldehyde
4-connected
porphyrin-based
tetraphenylamines.
Both
phosphazene
porphyrin
rings
in
served
electron-rich
sites,
enhancing
homogeneous
Angewandte Chemie International Edition,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 9, 2025
Photo/electro-catalytic
CO2
reduction
into
high-value
products
are
promising
strategies
for
addressing
both
environmental
problems
and
energy
crisis.
Duo
to
their
advantageous
visible
light
absorption
ability,
adjustable
optic/electronic
properties,
definite
active
center,
post-modification
capability,
excellent
stability,
porphyrin-based
covalent
organic
frameworks
(COFs)
have
emerged
as
attractive
photo/electro-catalysts
towards
reduction.
In
this
review,
the
research
progress
of
COFs
photo/electro-catalytic
is
summarized
including
design
principles,
catalytic
performance,
reaction
mechanism.
addition,
review
also
presents
some
challenges
prospects
application
in
reduction,
laying
base
fundamental
efforts.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
64(1)
Published: Aug. 16, 2024
The
design
of
three-dimensional
covalent
organic
frameworks
(3D
COFs)
using
linear
and
trigonal
linkers
remains
challenging
due
to
the
difficulty
in
achieving
a
specific
non-planar
spatial
arrangement
with
low-connectivity
building
units.
Here,
we
report
novel
3D
COFs
linkers,
termed
TMB-COFs,
exhibiting
srs
topology.
steric
hindrance
provides
an
additional
force
alter
torsion
angles
peripheral
triangular
units,
guiding
unit
connect
into
frameworks,
rather
than
more
commonly
observed
two-dimensional
(2D)
hcb
structures.
Furthermore,
comprehensively
examined
hydrogen
peroxide
photocatalytic
production
capacity
TMB-COFs
comparison
analogous
2D
COFs.
experimental
results
DFT
calculations
demonstrate
significant
enhancement
efficacy
through
framework
regulation.
This
work
emphasizes
configuration
low
connectivity
offering
fresh
perspective
on
application
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(47), P. 32161 - 32205
Published: Nov. 18, 2024
Covalent
organic
frameworks
(COFs)
are
created
by
the
condensation
of
molecular
building
blocks
and
nodes
to
form
two-dimensional
(2D)
or
three-dimensional
(3D)
crystalline
frameworks.
The
diversity
with
different
properties
functionalities
large
number
possible
framework
topologies
open
a
vast
space
well-defined
porous
architectures.
Besides
more
classical
applications
materials
such
as
absorption,
separation,
catalytic
conversions,
interest
in
optoelectronic
COFs
has
recently
increased
considerably.
electronic
both
their
linkage
chemistry
can
be
controlled
tune
photon
absorption
emission,
create
excitons
charge
carriers,
use
these
carriers
photocatalysis,
luminescence,
chemical
sensing,
photovoltaics.
In
this
Perspective,
we
will
discuss
relationship
between
structural
features
properties,
starting
connectivity,
layer
stacking
2D
COFs,
control
over
defects
morphology
including
thin
film
synthesis,
exploring
theoretical
modeling
structural,
electronic,
dynamic
discussing
recent
intriguing
focus
on
photocatalysis
photoelectrochemistry.
We
conclude
some
remarks
about
present
challenges
future
prospects
powerful
architectural
paradigm.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 12, 2024
Unraveling
the
mechanism
of
chirality
transfer
across
length
scales
is
crucial
to
rational
development
functional
materials
with
hierarchical
chirality.
The
key
obstacle
lack
structural
information,
especially
at
mesoscopic
level.
We
report
herein
identification
helical
covalent
organic
frameworks
(heliCOFs)
chirality,
which
integrate
molecular
channel
and
morphology
into
one
crystalline
entity.
Specifically,
benefiting
from
highly
ordered
structure
heliCOFs,
existence
chiral
channels
level
has
been
confirmed
by
electron
crystallography,
handedness
these
directly
determined
through
stereopair
imaging
technique.
Accordingly,
in
heliCOFs
microscopic
macroscopic
levels
could
be
rationalized
a
layer-rotating
model
that
supported
both
crystal
analysis
theoretical
calculations.
Observation
not
only
provides
unprecedented
data
for
understanding
process
but
also
sheds
new
light
on
construction
polymeric
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 8, 2025
The
diversity
of
covalent
organic
frameworks
(COFs)
is
continuously
expanding,
providing
various
materials
with
tailor-made
structures
and
properties.
However,
the
development
crystalline
three-dimensional
(3D)
COFs
new
topologies
an
essential
but
arduous
challenge.
In
this
study,
we
first
developed
one
kind
3D
lil
topological
structure,
which
were
assembled
by
D4h-
C2h-symmetric
building
blocks.
determined
in
a
space
group
Imma,
each
D4h-symmetric
unit
connected
four
units,
forming
noninterpenetrated
network.
densely
packed
copper
phthalocyanine
stable
polyimide
linkage
render
these
as
polymeric
material
high
dielectric
constant
low
loss
at
frequencies
(>1
kHz).
Significantly,
was
63,
constitutes
record
value
among
phthalocyanine-based
polymers.
Therefore,
study
not
only
provides
important
guidance
for
design
lil-net
also
supplies
promising
application
high-energy-density
pulsed
capacitors.
Angewandte Chemie,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 9, 2025
Abstract
Photo/electro‐catalytic
CO
2
reduction
into
high‐value
products
are
promising
strategies
for
addressing
both
environmental
problems
and
energy
crisis.
Duo
to
their
advantageous
visible
light
absorption
ability,
adjustable
optic/electronic
properties,
definite
active
center,
post‐modification
capability,
excellent
stability,
porphyrin‐based
covalent
organic
frameworks
(COFs)
have
emerged
as
attractive
photo/electro‐catalysts
towards
reduction.
In
this
review,
the
research
progress
of
COFs
photo/electro‐catalytic
is
summarized
including
design
principles,
catalytic
performance,
reaction
mechanism.
addition,
review
also
presents
some
challenges
prospects
application
in
reduction,
laying
base
fundamental
efforts.
Chinese Journal of Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 19, 2025
Comprehensive
Summary
The
preparation
and
resolution
of
chiral
molecules
hold
significant
importance
in
scientific
industrial
domains,
such
as
drug
development
manufacturing.
In
recent
years,
porous
frameworks
have
attracted
increasing
attention
asymmetric
catalysis
enantiomer
due
to
their
excellent
performance.
metal‐organic
(MOFs),
covalent
organic
(COFs),
cages
(POCs),
coordination
(PCCs)
are
important
representative
the
framework
family.
Significantly,
chirality
can
be
easily
introduced
into
these
materials
through
simple
bottom‐up
or
post‐modification
methods,
thereby
promoting
applications
related
chirality.
this
review,
we
systematically
summarize
synthesis
strategies
four
classes
enantiomeric
resolution.
Finally,
present
some
perspectives
on
future
frameworks.
Key
Scientists
Significant
progress
has
been
made
frameworks,
primarily
driven
by
application
molecules.
This
area
research
seen
contributions
from
many
distinguished
scientists.
A
particularly
milestone
was
reached
2000,
when
Kimoon
Kim
reported
first
catalytic
Chiral
Metal‐Organic
Framework
(CMOF).
2001,
Lin
et
al
.
a
new
generation
recyclable
CMOF
capable
separation
heterogeneous
catalysis.
Simultaneously,
researchers
Cui
Duan
substantial
contributions,
advancing
field
considerably.
Furthermore,
notable
developments
Covalent
Organic
Frameworks
(CCOFs),
with
pioneering
work
like
Jiang,
Wang,
Cui.
Meanwhile,
groups
Su
Li
strides
cages.
These
remarkable
accomplishments
drawn
considerable
interest.
