Chemical Science,
Journal Year:
2024,
Volume and Issue:
15(27), P. 10625 - 10637
Published: Jan. 1, 2024
Insulating
polymer
is
harnessed
as
an
unexpected
electron
tunneling
mediator
to
boost
interfacial
charge
migration
and
separation
over
transition
metal
chalcogenides
for
significantly
enhanced
solar-to-syngas
conversion.
EcoEnergy,
Journal Year:
2023,
Volume and Issue:
1(2), P. 248 - 295
Published: Dec. 1, 2023
Abstract
In
the
advancing
world
of
graphene,
highly
anisotropic
2D
semiconductor
nanosheets,
notable
for
their
nanometer‐scale
thickness,
have
emerged
as
a
leading
innovation,
displaying
immense
potential
in
exploration
renewable
and
clean
energy
production.
These
garnered
significant
attention
from
researchers.
The
nanosheets
are
marked
by
extraordinary
electronic,
optical,
chemical
attributes,
positioning
them
attractive
foundational
components
heterogeneous
photocatalysts.
This
review
diligently
summarizes
both
seminal
work
ongoing
developments
pertaining
to
application
solar
within
context
photocatalysis.
We
begin
detailing
distinctive
properties
concentrating
on
pivotal
roles
augmenting
photocatalytic
efficiency,
explaining
intrinsic
mechanisms
that
govern
migration
rate
photogenerated
carriers
material's
surface.
Subsequently,
we
delineate
methods
employed
synthesize
typical
nanosheets.
alignment
with
overarching
objective
expanding
light
absorption
capacity
accelerating
charge
transfer,
also
examine
current
research
hybridization
techniques
involving
materials
varied
dimensions,
well
deployment
diverse
applications.
conclude
identifying
promising
avenues
challenges
await
further
this
burgeoning
field.
Carbon Energy,
Journal Year:
2024,
Volume and Issue:
6(1)
Published: Jan. 1, 2024
Abstract
Efficient
photocatalytic
reduction
of
CO
2
to
high‐calorific‐value
CH
4
,
an
ideal
target
product,
is
a
blueprint
for
C
1
industry
relevance
and
carbon
neutrality,
but
it
also
faces
great
challenges.
Herein,
we
demonstrate
unprecedented
hybrid
SiC
photocatalysts
modified
by
Fe‐based
cocatalyst,
which
are
prepared
via
facile
impregnation‐reduction
method,
featuring
optimized
local
electronic
structure.
It
exhibits
superior
carbon‐based
products
yield
30.0
µmol
g
−1
h
achieves
record
selectivity
up
94.3%,
highlights
the
effectiveness
electron‐rich
Fe
cocatalyst
boosting
performance
selectivity.
Specifically,
synergistic
effects
directional
migration
photogenerated
electrons
strong
π‐back
bonding
on
low‐valence
effectively
strengthen
adsorption
activation
reactants
intermediates
in
→
pathway.
This
study
inspires
effective
strategy
enhancing
multielectron
capacity
semiconductor
with
low‐cost
instead
noble
metals
as
cocatalysts.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(7), P. 5275 - 5285
Published: March 25, 2024
Selective
photocatalytic
CO2
methanation
provides
an
attractive
avenue
to
address
energy
and
environmental
issues.
However,
impediments
such
as
the
sluggish
adsorption
activation
of
H2O
molecules,
along
with
unexpected
intermediate
desorption,
greatly
restrict
activity
selectivity
methanation.
To
these
issues,
we
devised
a
dual-active
site
catalyst
comprising
Cu
single
atoms
(SAs)
nanoclusters
(NCs)
supported
on
defective
TiO2
(Cu1+NCs/BT).
As
result,
remarkable
CH4
98%
yield
19.63
μmol
gcat.–1
h–1
can
be
obtained
over
as-prepared
Cu1+NCs/BT
in
pure
water.
Mechanistic
studies
reveal
enhanced
performance
could
ascribed
synergistic
effect
sites,
where
SAs
adsorb
activate
CO2,
while
NCs
boost
dissociation
for
*H
coverage.
Additionally,
adjacent
jointly
stabilize
*CO
reduce
barrier
protonation,
promoting
multielectron
transfer
process.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(14)
Published: Feb. 5, 2024
Abstract
Photocatalytic
CO
2
reduction
to
hydrocarbon
fuels
through
solar
energy
provides
a
feasible
channel
for
reducing
emission
and
resource
depletion.
Nevertheless,
severe
charge
recombination
high
barrier
limit
the
efficiency.
Herein,
surface
amine‐functionalized
SnO
with
oxygen
vacancies
(A‐Vo‐SnO
)
is
fabricated
achieve
visible‐light‐driven
photocatalytic
reduction.
Specifically,
amino
groups
modified
onto
of
catalyst
can
provide
more
active
sites
promote
adsorption
.
Meanwhile,
synchronously
induced
defect
level
reduces
band‐gap
expands
light‐absorption
region
from
UV
light
visible
light.
The
modulate
electronic
structure
work
as
separation
centers
spatial
charges,
thus
promoting
interfacial
transfer
efficiency
providing
catalytic
sites,
evidenced
by
experimental
observation
theoretical
calculation.
As
expected,
this
A‐Vo‐SnO
exhibits
CH
4
evolution
rate
17.27
µmol
g
−1
h
without
adding
sacrificial
agent
co‐catalyst,
much
higher
than
5.98
pure
This
significant
inspiration
design
engineering
based
on
photocatalysts
towards
conversion.