Chemistry - An Asian Journal,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 10, 2024
Abstract
Nanoscale
framework
materials
have
attracted
extensive
attention
due
to
their
diverse
morphology
and
good
properties,
synthesis
methods
of
different
size
structures
been
reported.
Therefore,
the
relationship
between
sizes
performance
has
become
a
research
hotspot.
This
paper
reviews
controllable
strategies
nano‐metal‐organic
frameworks
(nano‐MOFs)
nano‐covalent‐organic
(nano‐COFs).
Firstly,
synthetic
evolution
nano‐frame
is
summarized.
Due
special
surface
area,
regular
pores
adjustable
structural
functions,
much
attention.
Then
preparation
nanostructures
with
dimensions
are
introduced.
These
provide
basis
for
design
novel
energy
storage
catalytic
materials.
In
addition,
latest
advances
in
field
catalysis
reviewed,
emphasis
on
application
nano‐MOFs/COFs
zinc‐,
lithium‐,
sodium‐based
batteries,
as
well
supercapacitors.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 9, 2024
One
of
the
biggest
challenges
in
biotechnology
and
medical
diagnostics
is
finding
extremely
sensitive
adaptable
biosensors.
Since
metal-based
enzyme-mimetic
biocatalysts
may
lead
to
biosafety
concerns
on
accumulative
toxicity,
it
essential
synthesize
metal-free
enzyme-mimics
with
optimal
biocatalytic
activity
superior
selectivity.
Here,
pyridine-bridged
covalent
organic
frameworks
(COFs)
specific
oxidase-like
(OXD-like)
activities
as
intelligent
artificial
enzymes
for
light-augmented
sensing
biomarkers
are
disclosed.
Because
adjustable
bandgaps
pyridine
structures
photocatalytic
properties
pristine
COF
structures,
exhibit
efficient,
selective,
light-responsive
OXD-like
activity.
Moreover,
show
tunable
detection
capabilities,
which
outperform
recently
reported
state-of-the-art
OXD-mimics
regarding
biosensing
efficiency.
Notably,
exhibits
efficient
multifaceted
diagnostic
activity,
including
low
limit
(LOD),
enables
visual
assays
abundant
reducibility
biomarkers.
It
believed
that
this
design
will
offer
unique
high-sensitive
low-cost
colorimetric
also
provide
new
insights
create
highly
enzyme-like
materials
via
linkage-modulation
strategies
future
applications.
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.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 27, 2025
Abstract
Developing
catalysts
for
electrocatalytic
CO
2
to
CH
3
OH
still
faces
great
challenge
due
the
involvement
of
multiple
proton‐coupled
electron
transfer
(PCET)
processes.
Molecular
phthalocyanine
electrocatalysts
on
carbon
nanotubes
have
achieved
production
methanol
as
sole
liquid‐phase
product
but
with
activity
and
stability
far
from
meeting
industrial
demands.
Herein,
phthalocyaninato
cobalt
is
fabricated
into
covalent
organic
frameworks
PE‐COF
via
polymerization
ellagic
acid.
Subsequent
hydrolyzation
ester
groups
in
this
framework
affords
COOH/OH‐containing
PEH‐COF,
resulting
successful
modulation
over
local
microenvironment
Co
electrochemical
active
center
turn
rendering
high
yield
durability.
Experimental
theoretical
investigations
reveal
that
construction
COOH
group
H
O
participated
catalytic
cages
PEH‐COF
can
effectively
fix
hydrated
potassium
ions,
which
efficiently
enhances
PCET
kinetics
lowers
energy
barriers
conversion
OH.
The
partial
current
density
(
j
)
Faraday
efficiency
could
reach
100.9
mA
cm
−2
38.5%,
respectively.
Moreover,
be
maintained
at
100.4
after
9
h
electrocatalysis,
superior
thus
reported
catalysts.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 16, 2024
Polycyclic
aromatic
hydrocarbons
(PAHs)
hold
the
predominant
role
either
as
individual
molecules
or
building
blocks
in
field
of
organic
semiconductors
nanocarbons.
Connecting
PAHs
via
sp
Small,
Journal Year:
2024,
Volume and Issue:
20(44)
Published: July 14, 2024
Abstract
The
tunable
pore
walls
and
skeletons
render
covalent
organic
frameworks
(COFs)
as
promising
absorbents
for
gold
(Au)
ion.
However,
most
of
these
COFs
suffered
from
low
surface
areas
hindering
binding
sites
exposed
weak
interaction
resulting
in
sluggish
kinetic
performance.
In
this
study,
have
been
constructed
with
synergistic
linker
linkage
high‐efficiency
Au
capture.
designed
(PYTA‐PZDH‐COF
PYTA‐BPDH‐COF)
pyrazine
or
bipyridine
linkers
showed
high
1692
2076
m
2
g
‒1
,
providing
addition,
the
Lewis
basic
nitrogen
atoms
linkages
are
easily
hydronium,
which
enabled
to
fast
trap
via
coulomb
force.
PYTA‐PZDH‐COF
PYTA‐BPDH‐COF
maximum
capture
capacities
2314
1810
mg
−1
higher
than
other
reported
COFs.
More
importantly,
capable
rapid
adsorption
kinetics
achieving
95%
capacity
10
min.
theoretical
calculation
revealed
that
both
simultaneously
then
protonated
more
AuCl
4
‒
further
accelerating
process.
This
study
gives
a
new
insight
design
ion
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 16, 2024
Abstract
Polycyclic
aromatic
hydrocarbons
(PAHs)
hold
the
predominant
role
either
as
individual
molecules
or
building
blocks
in
field
of
organic
semiconductors
nanocarbons.
Connecting
PAHs
via
sp
2
‐carbon
bridges
to
form
high‐crystalline
π‐extended
structures
is
highly
desired
not
only
for
enlarging
regimes
two‐dimensional
materials
but
also
achieving
exceptional
properties/functions.
In
this
work,
we
developed
5,10‐dimethyl‐4,9‐diazapyrene
a
key
monomer,
whose
two
methyl
groups
at
positions
adjacent
nitrogen
atoms,
can
helpfully
increase
solubility,
and
serve
active
connection
sites.
presence
acids,
monomer
enables
smoothly
conducting
Knoevenagel
condensation
vinylene‐linked
PAH‐cored
COFs,
which
show
honeycomb
with
large
surface
areas
up
1238
m
g
−1
.
Owing
direct
mode
PAH
vinylene,
as‐prepared
COFs
possess
spatially
extended
π‐conjugation
substantial
semiconducting
properties.
Consequently,
their
visible‐light
photocatalysis
activity
durability
was
manifested
generate
H
O
3820
μmol
h
pure
water,
even
17080
using
benzyl
alcohol
hole
sacrificial
agent.
