Angewandte Chemie,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 10, 2024
Abstract
Photocatalytic
reduction
of
diluted
CO
2
from
anthropogenic
sources
holds
tremendous
potential
for
achieving
carbon
neutrality,
while
the
huge
barrier
to
forming
*COOH
key
intermediate
considerably
limits
catalytic
effectiveness.
Herein,
via
coordination
engineering
atomically
scattered
Ni
sites
in
conductive
metal–organic
frameworks
(CMOFs),
we
propose
a
facile
strategy
tailoring
d‐band
center
metal
active
towards
high‐efficiency
photoreduction
.
Under
visible‐light
irradiation
pure
,
CMOFs
with
Ni‐O
4
(Ni‐O
CMOFs)
exhibits
an
outstanding
rate
generation
13.3
μmol
h
−1
selectivity
94.5
%,
which
is
almost
double
that
its
isostructural
counterpart
traditional
Ni‐N
(Ni‐N
CMOFs),
outperforming
most
reported
systems
under
comparable
conditions.
Interestingly,
simulated
flue
gas,
decreases
significantly
mostly
unchanged,
signifying
supremacy
leveraging
In
situ
spectroscopy
and
density
functional
theory
(DFT)
investigations
demonstrate
O
can
move
sites′
closer
Fermi
level,
benefiting
as
well
desorption
*CO
hence
leading
boosted
activity
‐to‐CO
photoreduction.
Angewandte Chemie International Edition,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 9, 2025
Photo/electro-catalytic
CO2
reduction
into
high-value
products
are
promising
strategies
for
addressing
both
environmental
problems
and
energy
crisis.
Duo
to
their
advantageous
visible
light
absorption
ability,
adjustable
optic/electronic
properties,
definite
active
center,
post-modification
capability,
excellent
stability,
porphyrin-based
covalent
organic
frameworks
(COFs)
have
emerged
as
attractive
photo/electro-catalysts
towards
reduction.
In
this
review,
the
research
progress
of
COFs
photo/electro-catalytic
is
summarized
including
design
principles,
catalytic
performance,
reaction
mechanism.
addition,
review
also
presents
some
challenges
prospects
application
in
reduction,
laying
base
fundamental
efforts.
The
conversion
of
toluene
into
high-value
products
without
generating
undesired
CO2
remains
a
critical
challenge.
Selective
oxidation
under
visible
light
irradiation
has
emerged
as
promising
solution.
This
review
offers
comprehensive
interpretation
photocatalytic
transformations
in
heterogeneous
oxidation.
We
start
by
outlining
the
basic
mechanism
C–H
bond
activation
and
provide
an
overview
reactive
oxygen
species
(ROS)
within
systems.
Subsequently,
we
summary
strategies
that
have
been
developed
to
enhance
selectivity
system.
Following
this,
advanced
characterization
techniques
density
functional
theory
(DFT)
calculations
are
discussed
for
understanding
structure-performance
relationship
photocatalysts
mechanisms
underlying
processes.
Finally,
put
forward
detailed
discussion
current
challenges
potential
directions
future
research,
with
aim
offering
valuable
insights
this
emerging
field.
believe
will
not
only
spark
greater
creativity
optimizing
but
also
offer
designing
other
Chemical Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
A
novel
CdS@NiV-LDH
heterojunction
with
an
optimized
electric
field
microenvironment
and
reaction
has
been
constructed
for
the
photocatalytic
reduction
of
CO
2
to
tunable
green
syngas
by
rationally
modulating
PCET
process.
Chemical Science,
Год журнала:
2024,
Номер
15(39), С. 16259 - 16270
Опубликована: Янв. 1, 2024
Rational
design
of
a
TFPB-TRZ
COF
bearing
the
small
and
heteroatom-rich
organic
node
TRZ
(triazole
moiety)
which
facilitates
stabilization
CO
intermediate
at
imine
(–CN–)
site
via
electron
donation
from
an
N-hetero
species.
Angewandte Chemie,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 9, 2025
Abstract
Photo/electro‐catalytic
CO
2
reduction
into
high‐value
products
are
promising
strategies
for
addressing
both
environmental
problems
and
energy
crisis.
Duo
to
their
advantageous
visible
light
absorption
ability,
adjustable
optic/electronic
properties,
definite
active
center,
post‐modification
capability,
excellent
stability,
porphyrin‐based
covalent
organic
frameworks
(COFs)
have
emerged
as
attractive
photo/electro‐catalysts
towards
reduction.
In
this
review,
the
research
progress
of
COFs
photo/electro‐catalytic
is
summarized
including
design
principles,
catalytic
performance,
reaction
mechanism.
addition,
review
also
presents
some
challenges
prospects
application
in
reduction,
laying
base
fundamental
efforts.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 10, 2025
Abstract
Quantum
size
effects
and
interfacial
dimensional
interactions
enable
nanometer‐scale
hierarchical
heterostructures
to
adjust
band
structures
by
energy
level
discretization,
impurity
formation,
inversion,
allowing
for
controlled
carrier
localization
directional
relaxation.
These
unique
characteristics
show
great
potential
applications
in
ferroelectrics,
optoelectronics,
capacitors,
sensors.
Yet,
optimizing
performance
fine‐tuning
the
properties
of
nanoscale
systems,
especially
composition,
remains
a
considerable
challenge.
Here
dimensionally
confined
synthesis
is
reported
through
pyrolysis‐based
metal‐organic
framework‐on‐metal‐organic
framework
(MOF‐on‐MOF)
strategy,
resulting
continuous
metal‐carbon
carbon‐oxide
interfaces
below
50
nm.
Off‐axis
electron
holography
theoretical
calculations
are
utilized
visualize
dynamic
conversion
between
localized
free
electrons,
as
well
relaxation
processes
high‐density
magnetic
coupling
at
nanoscale.
phenomena
rarely
observed
micron‐scale
or
non‐hierarchical
heterostructures.
improvements
lead
significantly
enhanced
dielectric
properties,
efficient
interaction
with
high‐frequency
electromagnetic
(EM)
fields,
indicated
loss
bandwidth
covering
full
C‐band.
Future
work
will
explore
constructing
these
targeted
materials
examine
new
such
topological
behavior,
ferrimagnetism,
giant
magnetoresistance,
sustainability
optoelectronic
technology.
