ACS Catalysis,
Год журнала:
2023,
Номер
13(16), С. 10824 - 10834
Опубликована: Авг. 1, 2023
Engineering
the
electronic
structure
of
active
sites
on
photocatalyst
surfaces
can
help
realize
high
activity
through
strong
interactions
with
reactants.
However,
unimpeded
photo-charge
transport
is
highly
limited
by
a
mismatch
between
pristine
catalysts
and
reactants
because
lack
group-specific
modulated
synthesis
semiconductor-based
catalysts.
In
this
study,
hollow
TiO2/poly(diallyl-dimethylammonium
chloride)/graphene
quantum
dot
(GQD)
hybrid
were
established
noncovalent
self-assembly
surface
modification
strategy.
The
multilayered
nanostructure
composite
ensures
synchronous
charge
transfer
chain
for
directional
migration.
Furthermore,
GQDs
different
hydroxyl
contents
deposited
onto
hybrids
tuning
catalyst-reactant
interfacial
coupling.
Transient-state
photovoltage
analysis
revealed
that
absorption
activation
dominated
dynamics
proposed
strategy
may
facilitate
maneuvering
improving
specific
hydrogenation
reactions.
Chemical Society Reviews,
Год журнала:
2024,
Номер
53(18), С. 9378 - 9418
Опубликована: Янв. 1, 2024
Organic
transformation
by
light-driven
catalysis,
especially,
photocatalysis
and
photothermal
denoted
as
photo(thermal)
is
an
efficient,
green,
economical
route
to
produce
value-added
compounds.
In
recent
years,
owing
their
diverse
structure
types,
tunable
pore
sizes,
abundant
active
sites,
metal-organic
framework
(MOF)-based
catalysis
has
attracted
broad
interest
in
organic
transformations.
this
review,
we
provide
a
comprehensive
systematic
overview
of
MOF-based
for
First,
the
general
mechanisms,
unique
advantages,
strategies
improve
performance
MOFs
are
discussed.
Then,
outstanding
examples
transformations
over
introduced
according
reaction
type.
addition,
several
representative
advanced
characterization
techniques
used
revealing
charge
kinetics
intermediates
presented.
Finally,
prospects
challenges
field
proposed.
This
review
aims
inspire
rational
design
development
materials
with
improved
catalysis.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(43)
Опубликована: Июнь 27, 2023
Abstract
Shuttle
effect
and
sluggish
redox
kinetics
of
sulfur
species
still
hinder
the
practical
application
lithium‐sulfur
batteries
(LSBs).
Herein,
a
strategy
integrating
sub‐nano
catalysts
into
metal‐organic
framework
(MOF)
is
proposed
for
developing
efficient
host
to
tackle
these
issues.
The
designed
MOF
(MOF‐TOC)
endowed
with
TiO
clusters
(TOCs)
in
mesopores
can
act
as
an
reaction
chamber
LSBs.
Systematic
electrochemical
measurements
calculations
demonstrate
that
MOF‐TOC
trap
confine
lithium
polysulfides
(LiPSs)
via
strong
chemical
interaction.
Moreover,
highly
active
TOCs
isolated
different
nanopores
accelerate
bidirectional
through
d‐p
orbital
hybridization
species.
Benefiting
from
merits,
delivers
LSBs
remarkably
improved
areal
capacity
cycling
stability
at
high
loadings
lean
electrolytes.
This
work
gives
insight
rational
design
catalyst‐containing
hosts
will
shed
light
on
development
advanced
catalytic
high‐performance
ACS Catalysis,
Год журнала:
2024,
Номер
14(3), С. 1432 - 1442
Опубликована: Янв. 12, 2024
Defect-rich
Pd/TiO2
catalysts
are
intensively
adopted
in
heterogeneous
hydrogenation
reactions;
however,
the
complexity
of
defect
structure
makes
it
difficult
to
precisely
identify
which
Pd-defect
combination
dominates
catalytic
activity.
Herein,
defective
TiO2
nanoflakes
with
tunable
ratios
Vo
Ti3+
defects
were
synthesized
and
used
construct
Pd–Vo
Pd–Ti3+
active
sites
after
loading
Pd
investigate
role
regulating
structural
properties
catalysts.
Combining
experimental
results
theoretical
calculations,
we
reveal
that
both
act
as
electron
donors
for
induce
strong
metal–support
interaction.
When
compared
defect,
behaves
more
significantly
donates
electrons,
causing
species
on
be
better
dispersed
rich
electrons.
These
unique
features
endow
centers
enhanced
adsorption–activation
ability
toward
C═C
H2
well
reduced
energy
barrier
rate-limiting
step,
thus
improving
intrinsic
The
site
manifests
a
high
turnover
frequency
348
h–1
degree
97%
styrene–butadiene–styrene,
outperforms
(254
78%)
nanoparticle
(217
53%).
This
work
provides
deep
insight
into
metal
sites,
can
guide
development
high-performance
versatile
applications.
Abstract
The
chemical/physical
properties
and
reliable
performance
of
nanoporous
materials
are
strongly
influenced
by
the
particle
size
corresponding
distribution.
Among
many
types
MOFs,
ZIF‐8,
is
still
widely
used
studies
have
been
conducted
to
control
uniformity
ZIF‐8
using
surfactants
organic
solvents.
However,
use
solvents
process
expensive
may
cause
environmental
pollution.
For
first
time,
in
this
paper,
a
surfactant‐free,
size‐controllable,
scalable
green
synthesis
method
particles
reported
four
reaction
parameters
(temperature,
concentration,
pouring
reactant
ratio)
that
affect
formation
nuclei
growth
crystals.
as‐synthesized
nanoparticles
show
great
controllable
sizes
wide
range
147–915
nm.
In
addition,
2
L
large‐scale
with
narrow
distribution
developed
finely
tuned
water
without
any
additives.
To
demonstrate
efficient
utilization
nanopores
according
distribution,
an
adsorption
test
on
nanoparticles.
This
study
will
support
size‐controlled
their
composites
for
achieving
high
emerging
applications.
Chemical Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 18, 2025
The
electrocatalytic
technique,
as
an
efficient
energy
storage
and
conversion
technology,
has
attracted
significant
attention
to
address
exhaustion
environmental
pollution.
Usually,
the
activity
selectivity
of
reactions
are
largely
dominated
by
dynamic
process
occurring
on
electrocatalysts.
Therefore,
high-performance
electrocatalysts,
which
can
dominate
pathway
barrier
reactions,
great
significance
for
advancement
technique.
Metal-organic
frameworks
(MOFs),
emerging
crystalline
porous
materials,
present
structural
component
advantages
including
well-defined
structure,
high
surface
area,
large
porosity,
diverse
components,
easy
tailorability,
demonstrating
fantastic
potential
precise
fabrication
In
this
Review,
strategies
in
electrocatalysts
based
MOF-related
materials
specifically
introduced
from
aspects
catalytic
site
design
microenvironment
modulation
around
sites.
Furthermore,
representative
progress
achieved
various
applications
employing
MOF-based
is
systematically
summarized,
with
special
emphasis
MOFs
performance
optimization.
Finally,
remaining
challenges
future
perspectives
further
highlighted.
