Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 7, 2024
Due
to
the
severe
recombination
of
charge
carriers,
photocatalytic
activity
covalent
organic
frameworks
(COFs)
materials
is
limited.
Herein,
through
simple
ultrasound
and
stirring
processes,
Pd
metallene
(Pde)
successfully
combined
with
2D
COFs
form
Pde/TpPa-1-COF
(Pde/TPC)
composites.
Obviously,
a
strong
internal
electric
field
(IEF)
formed
in
Pde/TPC
hybrid
materials,
which
significantly
boosts
separation
photogenerated
charges.
In
addition,
matched
structure
two
can
also
lead
electronic
coupling
effects,
plentiful
active
sites,
shortened
carrier
migration
paths.
Thus,
own
extraordinary
ability
longer
carriers
lifetime
(3.3
ns
for
2.7
TPC),
be
proved
series
photoelectrochemical
spectroscopic
tests.
Benefiting
from
formation
IEF
structure,
8%
demonstrates
highest
H
Catalysts,
Journal Year:
2023,
Volume and Issue:
13(5), P. 850 - 850
Published: May 8, 2023
Exploration
of
high-efficiency
stabilization
and
abundant
source-conjugated
polymers
semiconductor
materials
with
suitable
molecular
orbital
energy
levels
has
always
been
a
hot
topic
in
the
field
photocatalytic
hydrogen
evolution
(PHE)
from
water
splitting.
In
recent
years,
constructing
intramolecular
donor–acceptor
(D–A)-conjugated
architecture
copolymers
proved
as
one
most
excellent
photocatalyst
modification
tactics
for
optimizing
PHE
properties
because
unique
advantages,
including
easy
regulate
band-gap
position,
fast
transfer
charge
carrier
architecture,
superior
sunlight
absorption
capacity
range,
large
interfacial
areas,
so
forth.
Therefore,
this
minireview,
we
summarize
latest
research
progress
D–A
First,
briefly
overview
fundamental
description
principles
construction
heterostructures
system.
After
that,
application
reaction
over
different
classes
organic
semiconductors
have
discussed
detail.
At
last,
present
development
prospects
future
potential
challenges
are
proposed.
We
hope
minireview
some
parameter
values
further
developments
intermolecular
special
structured
material
research.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: Sept. 26, 2024
Abstract
Regulation
the
electronic
density
of
solid-state
electrolyte
by
donor–acceptor
(D–A)
system
can
achieve
highly-selective
Li
+
transportation
and
conduction
in
metal
batteries.
This
study
reports
a
high-performance
thorough
D–A-linked
covalent
organic
frameworks
(COFs)
based
on
intramolecular
charge
transfer
interactions.
Unlike
other
reported
COF-based
electrolyte,
developed
concept
with
COFs
not
only
achieves
modulation
to
promote
migration
inhibit
dendrite,
but
also
offers
crucial
opportunity
understand
role
The
introduced
strong
electronegativity
F-based
ligand
COF
results
(transference
number
0.83),
high
ionic
conductivity
(6.7
×
10
–4
S
cm
−1
),
excellent
cyclic
ability
(1000
h)
symmetric
cell
high-capacity
retention
Li/LiFePO
4
(90.8%
for
300
cycles
at
5C)
than
substituted
C-
N-based
ligands.
is
ascribed
outstanding
D–A
interaction
between
donor
porphyrin
acceptor
F
atoms,
which
effectively
expedites
electron
transferring
from
enhances
kinetics.
Consequently,
we
anticipate
that
this
work
creates
insight
into
strategy
accelerating
batteries
through
system.
ACS Applied Nano Materials,
Journal Year:
2025,
Volume and Issue:
8(4), P. 2022 - 2032
Published: Jan. 22, 2025
The
photocatalytic
reduction
of
CO2
into
methane
has
garnered
significant
attention;
however,
the
multiple
electron
and
proton
processes
involved
in
often
result
low
products
selectivity.
Herein,
we
present
a
conjugated
polymer
photocatalyst
(ZnTP-PDA),
composed
Zn-porphyrin
pyrazine
units,
which
effectively
drives
photoconversion
to
CH4.
nanosheet
structure
ZnTP-PDA
offers
numerous
absorption
sites
exposes
catalytic
active
centers,
thereby
enhancing
reaction
kinetics.
Experimental
analyses
theoretical
calculations
demonstrate
that
incorporated
Zn
improve
adsorption
capability
charge
separation
efficiency,
optimizing
both
kinetics
thermodynamics,
facilitating
hydrogenation
key
intermediate
*CO
generate
Consequently,
exhibits
an
impressive
CH4
generation
rate
49.2
μmol
h–1
selectivity
90.3%
without
use
any
photosensitizers,
is
approximately
17.6
times
higher
than
pristine
TP-PDA
under
visible
light
irradiation.
This
study
underscores
beneficial
effects
site
engineering
on
photocatalysts
tailoring
product
during
reduction.
Nanoscale Horizons,
Journal Year:
2024,
Volume and Issue:
9(12), P. 2198 - 2233
Published: Jan. 1, 2024
Recently,
PyCOFs
have
aroused
great
interest
that
pyrene
unit
could
enhance
the
interlayer
π–π
interaction
and
promote
separation
migration
of
carriers,
significantly
improving
crystallinity
photoelectrical
properties.
Polymer Chemistry,
Journal Year:
2023,
Volume and Issue:
14(46), P. 5133 - 5139
Published: Jan. 1, 2023
Three
sp
2
-carbon-linked
D–A
COFs
have
been
successfully
synthesized
via
a
Knoevenagel
condensation
reaction.
The
TTh-COF
with
strong
electron-donating
unit
of
benzotrithiophene
exhibits
an
impressive
hydrogen
evolution
rate
22.22
mmol
h
−1
g
.
