Journal of the American Chemical Society,
Год журнала:
2023,
Номер
145(46), С. 25332 - 25340
Опубликована: Ноя. 9, 2023
Rational
control
and
understanding
of
isomerism
are
significance
but
still
remain
a
great
challenge
in
reticular
frameworks,
particular,
for
covalent
organic
frameworks
(COFs)
due
to
the
complicated
synthesis
energy
factors.
Herein,
reaction
3,3′,5,5′-tetra(4-formylphenyl)-2,2′,6,6′-tetramethoxy-1,1′-biphenyl
(TFTB)
with
3,3′,5,5′-tetrakis(4-aminophenyl)bimesityl
(TAPB)
under
different
conditions
affords
single
crystals
two
3D
COF
isomers,
namely,
USTB-20-dia
USTB-20-qtz.
Their
structures
resolutions
up
0.9–1.1
Å
have
been
directly
solved
by
three-dimensional
electron
diffraction
(3D
ED)
synchrotron
crystal
X-ray
diffraction,
respectively.
USTB-20-qtz
show
rare
2
×
2-fold
interpenetrated
dia-b
nets
3-fold
qtz-b
frameworks.
Comparative
studies
these
COFs
theoretical
simulation
results
indicate
crucial
role
flexible
molecular
configurations
building
blocks
present
topology
isomerism.
This
work
not
only
presents
isomers
also
gains
an
formation
framework
from
both
perspectives.
Materials Horizons,
Год журнала:
2023,
Номер
10(10), С. 4083 - 4138
Опубликована: Янв. 1, 2023
Porous
organic
polymers
show
great
potential
for
addressing
environmental
pollution
challenges,
including
chemical
sensing,
wastewater
treatment,
toxic
gas
sorption,
heterogeneous
catalysis,
and
further
promoting
sustainable
remediation
strategies.
Beni-Suef University Journal of Basic and Applied Sciences,
Год журнала:
2023,
Номер
12(1)
Опубликована: Июль 17, 2023
Abstract
Background
In
recent
years,
solar
photovoltaic
technology
has
experienced
significant
advances
in
both
materials
and
systems,
leading
to
improvements
efficiency,
cost,
energy
storage
capacity.
These
have
made
a
more
viable
option
for
renewable
generation
storage.
However,
intermittent
is
major
limitation
of
energy,
systems
are
the
preferred
solution
these
challenges
where
electric
power
applicable.
Hence,
type
system
depends
on
used
electrical
generation.
Furthermore,
growing
need
sources
necessity
long-term
solutions
fueled
research
into
novel
systems.
Researchers
concentrated
increasing
efficiency
cells
by
creating
that
can
collect
convert
sunlight
power.
Main
body
abstract
This
study
provides
an
overview
development
devices.
The
use
sources,
such
as
power,
becoming
increasingly
important
address
demand
mitigate
impact
climate
change.
with
superior
properties,
higher
lower
improved
durability,
significantly
enhance
performance
panels
enable
creation
new,
efficient
review
discusses
progress
field
opportunities
associated
also
explored,
including
scalability,
stability,
economic
feasibility.
Conclusion
devices
holds
great
potential
revolutionize
energy.
With
ongoing
technological
advancements,
scientists
engineers
been
able
design
properties
durability.
be
existing
adoption
could
implications
transition
toward
sustainable
environmentally
friendly
system.
there
still
addressed,
environmental
effects,
feasibility,
before
widely
implemented.
Nonetheless,
this
promising
continued
reports
crucial
achieving
future.
lead
system,
but
further
needed
overcome
current
limitations
large-scale
implementation.
Journal of the American Chemical Society,
Год журнала:
2022,
Номер
144(51), С. 23534 - 23542
Опубликована: Дек. 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.
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
62(11)
Опубликована: Дек. 20, 2022
Abstract
Water
pollution
is
a
growing
threat
to
humanity
due
the
pervasiveness
of
contaminants
in
water
bodies.
Significant
efforts
have
been
made
separate
these
hazardous
components
purify
polluted
through
various
methods.
However,
conventional
remediation
methods
suffer
from
limitations
such
as
low
uptake
capacity
or
selectivity,
and
current
quality
standards
cannot
be
met.
Recently,
advanced
porous
materials
(APMs)
shown
promise
improved
segregation
compared
traditional
selectivity.
These
feature
merits
high
surface
area
versatile
functionality,
rendering
them
ideal
platforms
for
design
novel
adsorbents.
This
Review
summarizes
development
employment
APMs
variety
treatments
accompanied
by
assessments
task‐specific
adsorption
performance.
Finally,
we
discuss
our
perspectives
on
future
opportunities
purification.
Bioactive Materials,
Год журнала:
2022,
Номер
21, С. 358 - 380
Опубликована: Сен. 14, 2022
Nanomedicines
for
drug
delivery
and
imaging-guided
cancer
therapy
is
a
rapidly
growing
research
area.
The
unique
properties
of
nanomedicines
have
massive
potential
in
solving
longstanding
challenges
existing
drugs,
such
as
poor
localization
at
the
tumor
site,
high
doses
toxicity,
recurrence,
immune
response.
However,
inadequate
biocompatibility
restricts
their
clinical
translation.
Therefore,
advanced
nanomaterials
with
enhanced
therapeutic
efficiency
are
highly
desired
to
fast-track
translation
nanomedicines.
Intrinsic
nanoscale
covalent
organic
frameworks
(nCOFs),
suitable
size,
modular
pore
geometry
porosity,
straightforward
post-synthetic
modification
via
simple
transformations,
make
them
incredibly
attractive
future
ability
COFs
disintegrate
slightly
acidic
microenvironment
also
gives
competitive
advantage
targeted
delivery.
This
review
summarizes
recently
published
applications
delivery,
photo-immuno
therapy,
sonodynamic
photothermal
chemotherapy,
pyroptosis,
combination
therapy.
Herein
we
mainly
focused
on
modifications
enhance
biocompatibility,
efficacy
will
provide
fundamental
knowledge
designing
biocompatible
nCOFs-based
help
rapid
development
carriers
theranostics.
Journal of Polymer Science,
Год журнала:
2023,
Номер
62(8), С. 1517 - 1535
Опубликована: Авг. 2, 2023
Abstract
Hyper‐crosslinked
polymers
(HCPs)
are
a
family
of
that
possess
several
desirable
characteristics,
including
high
specific
surface
area,
excellent
stability,
tunable
porous
structures,
and
low‐cost
reagents.
As
result,
HCPs
have
gained
significant
attention
in
the
areas
gas
storage,
adsorption,
catalysis,
separation,
carbon
precursors,
exhibiting
advanced
performances
catalytic
energy‐related
applications.
Recently,
researchers
explored
potential
biomedical
engineering.
In
this
review,
we
discuss
classical
synthesis
strategies
morphological
assembly
methods
used
to
create
with
unique
biological
properties.
We
also
highlight
latest
advances
emerging
HCPs,
such
as
drug
delivery,
antimicrobial,
bioimaging,
biosensing.
By
providing
various
examples,
further
correlations
between
morphologies,
enhanced
properties
HCPs.
Finally,
summarize
key
applications
provide
an
outlook
on
research
direction
encourage
development
biomedically
available
Overall,
offer
promising
new
class
materials
for
use
applications,
continued
field
will
lead
exciting
discoveries
breakthroughs.
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(11)
Опубликована: Ноя. 27, 2023
Abstract
Covalent
organic
frameworks
(COFs)
are
crystalline
porous
polymers
that
can
be
precisely
integrated
by
building
blocks
to
achieve
pre‐designed
composition,
components,
and
functions,
making
them
a
powerful
platform
for
the
development
of
molecular
devices
in
field
electrocatalysis.
The
precise
control
channel/dopant
positions
highly
ordered
network
structures
COFs
provide
an
ideal
material
system
applications
advanced
In
this
paper,
topological
structure
design
synthesis
methods
reviewed
detail,
their
principles
deeply
analyzed.
addition,
derivatives
electrocatalysis
systematically
summarized
optimization
strategies
proposed.
Finally,
application
prospects
challenges
may
encountered
future
prospected,
providing
helpful
guidance
research.
