ACS Catalysis,
Journal Year:
2021,
Volume and Issue:
12(2), P. 923 - 934
Published: Dec. 30, 2021
The
interfacial
interactions
between
the
metal
and
support
play
a
crucial
role
in
electrocatalytic
CO2
reduction
reaction
(CO2RR).
In
order
to
promote
strong
metal–support
(SMSIs)
of
interface,
herein,
we
developed
novel
synthetic
strategy
that
utilized
deposited
Au3+
species
induce
Au–CeO2
interface
activation
by
electrochemical
pretreatment.
This
unique
configuration
made
Au
nanoparticles
partially
be
encapsulated
CeO2
generate
fraction
surface
with
positive
charges.
obtained
catalyst
exhibited
significantly
enhanced
selectivity
activity
CO2RR
CO
high
Faradaic
efficiency
about
95%
under
wide
potential
range
from
−0.7
−1.0
V.
superior
performance
was
attributed
activated
over
which
abundant
Auδ+
oxygen
vacancies
generated
SMSIs
could
then
accelerate
formation
*COOH
intermediate
CO2RR.
extended
other
supports
including
carbon
ZrO2.
existence
strengthened
(MSIs)
Faradic
obviously
higher
than
catalysts
prepared
traditional
NaBH4
method
thus
gave
new
catalytic
insights
for
developing
robust
supported
gold
nanocatalysts
CO-related
important
heterogeneous
reactions.
Chemical Reviews,
Journal Year:
2022,
Volume and Issue:
123(9), P. 6039 - 6106
Published: Sept. 1, 2022
Zeolites
with
ordered
microporous
systems,
distinct
framework
topologies,
good
spatial
nanoconfinement
effects,
and
superior
(hydro)thermal
stability
are
an
ideal
scaffold
for
planting
diverse
active
metal
species,
including
single
sites,
clusters,
nanoparticles
in
the
framework-associated
sites
extra-framework
positions,
thus
affording
metal-in-zeolite
catalysts
outstanding
activity,
unique
shape
selectivity,
enhanced
recyclability
processes
of
Brønsted
acid-,
Lewis
metal-catalyzed
reactions.
Especially,
thanks
to
advances
zeolite
synthesis
characterization
techniques
recent
years,
zeolite-confined
(denoted
as
metal@zeolite
composites)
have
experienced
rapid
development
heterogeneous
catalysis,
owing
combination
merits
both
intrinsic
properties.
In
this
review,
we
will
present
developments
strategies
incorporating
tailoring
zeolites
advanced
identification
location,
distribution,
coordination
environment
species
zeolites.
Furthermore,
catalytic
applications
demonstrated,
emphasis
on
composites
hydrogenation,
dehydrogenation,
oxidation
Finally,
point
out
current
challenges
future
perspectives
precise
synthesis,
atomic
level
identification,
practical
application
catalyst
system.
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(15)
Published: March 1, 2023
Abstract
Delicate
modulations
of
CO
2
activation
and
charge
carrier
separation/migration
are
challenging,
yet
imperative
to
augment
photoreduction
efficiency.
Herein,
by
supporting
diethylenetriamine
(DETA)‐functionalized
Cd
0.8
Zn
0.2
S
nanowires
on
the
exterior
surface
hollow
Co
9
8
polyhedrons,
hierarchical
@Cd
S‐DETA
nanocages
fabricated
as
an
S‐scheme
photocatalyst
for
reducing
protons
produce
syngas
(CO
H
).
The
amine
groups
strengthen
adsorption
,
while
“nanowire‐on‐nanocage”
heterostructure
with
interface
boosts
separation
transfer
photoinduced
charges.
Employing
Co(bpy)
3
2+
a
cocatalyst,
optimal
effectively
produces
in
rates
70.6
18.6
µmol
h
−1
(i.e.,
4673
1240
g
),
respectively,
affording
apparent
quantum
efficiency
9.45%
at
420
nm,
which
is
highest
value
under
comparable
conditions.
Ultraviolet
photoelectron
spectroscopy,
Kelvin
probe,
electron
spin
resonance
confirm
S‐schematic
charge‐transfer
process
photocatalyst.
key
COOH
*
species
responsible
‐to‐CO
reduction
detected
in‐situ
diffuse
reflectance
infrared
Fourier
transform
spectroscopy
endorsed
density
functional
theory
calculations,
thus
possible
mechanism
proposed.
ACS Catalysis,
Journal Year:
2022,
Volume and Issue:
12(24), P. 14882 - 14901
Published: Nov. 23, 2022
Polyolefins,
the
largest
used
commodity
plastics
in
world,
find
extensive
application
many
fields.
However,
most
end
up
landfills
or
incineration,
leading
to
severe
ecological
crises,
environmental
pollution,
and
serious
resource
waste
problems.
As
representatives
on
chemical
upcycling
of
polyolefin
fuels
bulk/fine
chemicals,
catalytic
cracking
hydrocracking
based
zeolite
metal/zeolite
composite
catalysts
are
considered
effective
paths
due
their
large
capacity
strong
adaptability
existing
petrochemical
equipment.
After
an
overview
reaction
mechanisms
pyrolysis
cracking,
this
review
aims
comprehensively
discuss
influence
catalyst
structure
(acidity,
pore
structure,
morphology)
activity,
selectivity,
stability
particularly
emphasizing
importance
for
matching
acidity
target
product
formation.
Subsequently,
structure–activity
relationship
between
metal
site
zeolite's
acid
is
also
discussed.
In
end,
emerging
opportunities
challenges
proposed
promote
a
more
efficient
way
upcycling.
Science,
Journal Year:
2023,
Volume and Issue:
380(6646), P. 727 - 730
Published: May 18, 2023
Breaking
the
trade-off
between
activity
and
selectivity
has
been
a
long-standing
challenge
in
field
of
catalysis.
We
demonstrate
importance
disentangling
target
reaction
from
secondary
reactions
for
case
direct
syngas
conversion
to
light
olefins
by
incorporating
germanium-substituted
AlPO-18
within
framework
metal
oxide-zeolite
(OXZEO)
catalyst
concept.
The
attenuated
strength
catalytically
active
Brønsted
acid
sites
allows
enhancing
targeted
carbon-carbon
coupling
ketene
intermediates
form
increasing
site
density
while
inhibiting
that
consume
olefins.
Thus,
light-olefins
83%
among
hydrocarbons
carbon
monoxide
85%
were
obtained
simultaneously,
leading
an
unprecedented
yield
48%
versus
current
reported
yields
≤27%.
Chemical Society Reviews,
Journal Year:
2022,
Volume and Issue:
51(18), P. 7994 - 8044
Published: Jan. 1, 2022
Light
olefins
are
important
feedstocks
and
platform
molecules
for
the
chemical
industry.
Their
synthesis
has
been
a
research
priority
in
both
academia
There
many
different
approaches
to
of
these
compounds,
which
differ
by
choice
raw
materials,
catalysts
reaction
conditions.
The
goals
this
review
highlight
most
recent
trends
light
olefin
perform
comparative
analysis
synthetic
routes
using
several
quantitative
characteristics:
selectivity,
productivity,
severity
operating
conditions,
stability,
technological
maturity
sustainability.
Traditionally,
on
an
industrial
scale,
cracking
oil
fractions
used
produce
olefins.
Methanol-to-olefins,
alkane
direct
or
oxidative
dehydrogenation
technologies
have
great
potential
short
term
already
reached
scientific
maturities.
Major
progress
should
be
made
field
methanol-mediated
CO
CO2
hydrogenation
electrocatalytic
reduction
is
very
attractive
process
long
run
due
low
temperature
possible
use
sustainable
electricity.
application
modern
concepts
such
as
electricity-driven
intensification,
looping,
management
nanoscale
catalyst
design
lead
near
future
more
environmentally
friendly,
energy
efficient
selective
large-scale
synthesis.
