Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 20, 2024
Mini-emulsion
and
nanoprecipitation
techniques
relied
on
large
amounts
of
surfactants,
unresolved
miscibility
issues
heterojunction
materials
limited
their
efficiency
applicability
in
the
past.
Through
our
molecular
design
developed
surfactant-free
precipitation
method,
we
successfully
fabricated
best
miscible
bulk-heterojunction-particles
(BHJP)
ever
achieved,
using
donor
(PS)
acceptor
(PSOS)
polymers.
The
structural
similarity
ensures
optimal
miscibility,
as
supported
by
interaction
parameter
PS/PSOS
blend
is
positioned
very
close
to
binodal
curve.
Experimental
studies
dynamics
simulations
further
revealed
that
surfactants
hinder
electron
output
sites
reduce
concentration
sacrificial
agents
at
interface,
slowing
polaron
formation.
Multiscale
experiments
verified
these
BHJP,
approximately
12
nm
diameter,
form
cross-linked
fractal
networks
several
hundred
nanometers.
Transient
absorption
spectroscopy
showed
BHJP
facilitates
formation
transfer.
Our
demonstrated
a
superior
hydrogen
evolution
rate
(HER)
compared
traditional
methods.
most
active
achieved
an
HER
251.2
mmol
h–1
g–1
apparent
quantum
yield
26.2%
500
nm.
This
work
not
only
introduces
practical
method
for
preparing
but
also
offers
new
direction
development
materials.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(28), P. 17021 - 17053
Published: Jan. 1, 2024
In
this
review,
first,
the
synthesis
of
CMPs
is
reviewed.
Second,
application
in
flexible
electronics
emphatically
introduced.
Finally,
problems
and
challenges
electrode
materials
are
discussed.
Angewandte Chemie International Edition,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 6, 2025
2D
covalent
organic
frameworks
(2D-COFs)
have
attracted
extensive
interest
in
solar
energy
to
hydrogen
conversion.
However,
insufficient
light
harvesting
and
difficult
exciton
dissociation
severely
limit
the
improvement
of
photocatalytic
activity
for
COFs,
thereby
impeding
progression
this
advanced
field.
In
work,
two
benzobisoxazole-bridged
fully
conjugated
2D-COFs
with
triazine
(COF-JLU44)
pyrene
(COF-JLU45)
units
were
constructed
first
time
via
Knoevenagel
polycondensation,
they
hold
long-range
ordered
structures,
largely
acceptable
surface
area,
fascinating
photoelectric
properties.
Significantly,
COF-JLU45
exhibits
an
impressive
evolution
rate
272.5
mmol
g-1
h-1
superior
reusability
presence
1.0
wt%
Pt
under
irradiation,
coupled
a
remarkable
apparent
quantum
yield
12.9%
at
long
wavelength
600
nm.
Multiple
spectroscopy
theoretical
simulation
demonstrate
ingenious
design
widen
its
absorption
effectively
promote
dissociation.
This
finding
contributes
valuable
insights
constructing
metal-free
photocatalysts
conversion
utilization.
Angewandte Chemie,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 6, 2025
Abstract
2D
covalent
organic
frameworks
(2D‐COFs)
have
attracted
extensive
interest
in
solar
energy
to
hydrogen
conversion.
However,
insufficient
light
harvesting
and
difficult
exciton
dissociation
severely
limit
the
improvement
of
photocatalytic
activity
for
COFs,
thereby
impeding
progression
this
advanced
field.
In
work,
two
benzobisoxazole‐bridged
fully
conjugated
2D‐COFs
with
triazine
(COF‐JLU44)
pyrene
(COF‐JLU45)
units
were
constructed
first
time
via
Knoevenagel
polycondensation,
they
hold
long‐range
ordered
structures,
largely
acceptable
surface
area,
fascinating
photoelectric
properties.
Significantly,
COF‐JLU45
exhibits
an
impressive
evolution
rate
272.5
mmol
g
−1
h
superior
reusability
presence
1.0
wt%
Pt
under
irradiation,
coupled
a
remarkable
apparent
quantum
yield
12.9%
at
long
wavelength
600
nm.
Multiple
spectroscopy
theoretical
simulation
demonstrate
ingenious
design
widen
its
absorption
effectively
promote
dissociation.
This
finding
contributes
valuable
insights
constructing
metal‐free
photocatalysts
conversion
utilization.
