ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(19), P. 24691 - 24702
Published: May 2, 2024
Metal/metal
oxide
clusters
possess
a
higher
count
of
unsaturated
coordination
sites
than
nanoparticles,
providing
multiatomic
that
single
atoms
do
not.
Encapsulating
metal/metal
within
zeolites
is
promising
approach
for
synthesizing
and
stabilizing
these
clusters.
The
unique
feature
endows
the
metal
with
an
exceptional
catalytic
performance
in
broad
range
reactions.
However,
encapsulation
stable
FeOx
zeolite
still
challenging,
which
limits
application
zeolite-encapsulated
catalysis.
Herein,
we
design
modified
solvent-free
method
to
encapsulate
pure
siliceous
MFI
(Fe@MFI).
It
revealed
0.3-0.4
nm
subnanometric
are
stably
encapsulated
5/6-membered
rings
intersectional
voids
zeolites.
Fe@MFI
catalyst
Fe
loading
1.4
wt
%
demonstrates
remarkable
activity
recycle
stability
direct
oxidation
methane,
while
also
promoting
cyclohexane,
surpassing
conventional
zeolite-supported
catalysts.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(46)
Published: Aug. 12, 2024
Abstract
Light‐driven
dry
reforming
of
methane
is
a
promising
and
mild
route
to
convert
two
greenhouse
gas
into
valuable
syngas.
However,
developing
facile
strategy
atomically‐precise
regulate
the
active
sites
realize
balanced
stable
syngas
production
still
challenging.
Herein,
we
developed
spatial
confinement
approach
precisely
control
over
platinum
species
on
TiO
2
surfaces,
from
single
atoms
nanoclusters.
The
configuration
comprising
sub‐nanoclusters
engenders
pronounced
electronic
metal‐support
interactions,
with
resultant
interfacial
states
prompting
surface
charge
rearrangement.
unique
geometric
properties
these
atom‐cluster
assemblies
facilitate
effective
activation
CH
4
CO
,
accelerating
intermediate
coupling
minimizing
side
reactions.
Our
catalyst
exhibits
an
outstanding
generation
rate
34.41
mol
g
Pt
−1
h
superior
durability,
displaying
high
apparent
quantum
yield
9.1
%
at
365
nm
turnover
frequency
1289
.
This
work
provides
insightful
understanding
for
exploring
more
multi‐molecule
systems
atomic
scale.
JACS Au,
Journal Year:
2024,
Volume and Issue:
4(6), P. 2081 - 2098
Published: June 4, 2024
Single-use
polyolefins
are
widely
used
in
our
daily
life
and
industrial
production
due
to
their
light
weight,
low
cost,
superior
stability,
durability.
However,
the
rapid
accumulation
of
plastic
waste
low-profit
recycling
methods
resulted
a
global
crisis.
Catalytic
hydrogenolysis
is
regarded
as
promising
technique,
which
can
effectively
selectively
convert
polyolefin
value-added
products.
In
this
perspective,
we
focus
on
design
synthesis
structurally
well-defined
catalysts
across
mesoscopic,
nanoscopic,
atomic
scales,
accompanied
by
insights
into
future
directions
catalyst
for
further
enhancing
catalytic
performance.
These
principles
also
be
applied
depolymerization
other
polymers
ultimately
realize
chemical
upcycling
plastics.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(15), P. 11457 - 11467
Published: July 17, 2024
Regulating
the
metal–support
interaction
(MSI)
of
supported
metal
catalysts
is
critical
to
enhancing
their
catalytic
performance.
However,
achieving
direct
control
over
MSI
by
tuning
properties
irreducible
oxide-supported
supports
remains
a
challenging
task.
In
this
study,
we
propose
surface
modification
strategy
refine
on
an
MgAl2O4-supported
Pt
catalyst.
By
employing
facile
H2O2
treatment
modify
support
surface,
number
Brønsted
acid
sites
MgAl2O4
was
successfully
reduced.
The
between
and
appropriately
weakened,
resulting
in
higher
proportion
metallic
species,
while
maintaining
high
level
dispersion
during
reaction.
These
species
enhance
activation
ability
C–H
bonds
propane
facilitate
rapid
consumption
intermediate
species.
Consequently,
complete
oxidation
reaction
performance
H2O2-treated
Pt/MgAl2O4
significantly
promoted,
exhibiting
impressive
increase
intrinsic
activity
32-fold
compared
traditional
Pt/MgAl2O4.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 27, 2024
Abstract
Photocatalytic
CO
2
reduction
serves
as
an
important
technology
for
value‐added
solar
fuel
production,
however,
it
is
generally
limited
by
interfacial
charge
transport.
To
address
this
limitation,
a
two‐dimensional/two‐dimensional
(2D/2D)
p‐n
heterojunction
CuS‐Bi
WO
6
(CS‐BWO)
with
highly
connected
and
matched
lattices
was
designed
in
work
via
two‐step
hydrothermal
tandem
synthesis
strategy.
The
integration
of
CuS
BWO
created
robust
interface
electric
field
provided
fast
transfer
channels
due
to
the
function
difference,
well
lattices.
combination
promoted
electron
from
Cu
Bi
sites,
leading
coordination
sites
high
electronic
density
low
oxidation
state.
nanosheets
facilitated
adsorption
activation
,
generation
high‐coverage
key
intermediate
b‐CO
3
2−
while
(CS)
acted
broad
light‐harvesting
material
provide
abundant
photoinduced
electrons
that
were
injected
into
conduction
band
photoreduction
reaction.
Remarkably,
CS‐BWO
exhibited
average
CH
4
yields
33.9
16.4
μmol
g
−1
h
respectively,
which
significantly
higher
than
those
CS,
BWO,
physical
mixture
samples.
This
innovative
design
strategy
developing
high‐activity
photocatalyst
converting
fuels.
Dalton Transactions,
Journal Year:
2024,
Volume and Issue:
53(19), P. 8168 - 8176
Published: Jan. 1, 2024
Defect
engineering
is
applied
to
construct
rich
oxygen
vacancies
at
the
interface
of
a
TiO
2
anatase/rutile
homojunction
(O
V
-TRA)
enhance
sulfur
affinity
and
redox
reaction
kinetics
RT
Na–S
batteries.
