Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(1)
Published: Oct. 2, 2023
Covalent
organic
frameworks
(COFs)
have
shown
great
advantages
as
photocatalysts
for
hydrogen
evolution.
However,
the
effect
of
linkage
geometry
and
type
on
extent
π-electron
conjugation
in
plane
framework
photocatalytic
properties
COFs
remains
a
significant
challenge.
Herein,
two
Kagome
(kgm)
topologic
oligo(phenylenevinylene)-based
are
designed
synthesized
boosting
evolution
via
"two
one"
strategy.
Under
visible
light
irradiation,
COF-954
with
5
wt%
Pt
cocatalyst
exhibits
high
rate
(HER)
137.23
mmol
g
Small,
Journal Year:
2023,
Volume and Issue:
19(24)
Published: March 15, 2023
Regulating
electronic
structures
of
the
active
site
by
manipulating
local
coordination
is
one
advantageous
means
to
improve
photocatalytic
hydrogen
evolution
(PHE)
kinetics.
Herein,
ZnIn2
S4
/Mo2
TiC2
Schottky
junctions
are
designed
be
constructed
through
interfacial
In3+
with
electronegative
O
terminal
group
on
Mo2
based
different
work
functions.
Kelvin
probe
force
microscopy
and
charge
density
difference
reveal
that
an
unidirectional
transport
channel
across
interface
from
established
formed
nucleophilic/electrophilic
region.
The
increased
electron
inhibits
backflow
electrons,
boosts
transfer
separation,
optimizes
adsorption
energy.
Therefore,
photocatalyst
exhibits
a
superior
PHE
rate
3.12
mmol
g-1
h-1
under
visible
light,
reaching
3.03
times
pristine
.
This
provides
some
insights
inspiration
for
preparing
MXene-based
catalysts
accelerate