Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(42)
Published: July 25, 2024
Abstract
Precisely
controlling
the
microstructure
of
supported
metal
catalysts
and
regulating
metal‐support
interactions
at
atomic
level
are
essential
for
achieving
highly
efficient
heterogeneous
catalysts.
Strong
interaction
(SMSI)
not
only
stabilizes
nanoparticles
improves
their
resistance
to
sintering
but
also
modulates
electrical
between
species
support,
optimizing
catalytic
activity
selectivity.
Therefore,
understating
formation
mechanism
SMSI
its
dynamic
evolution
during
chemical
reaction
scale
is
crucial
guiding
structural
design
performance
optimization
Recent
advancements
in
situ
transmission
electron
microscopy
(TEM)
have
shed
new
light
on
these
complex
phenomena,
providing
deeper
insights
into
dynamics.
Here,
research
progress
TEM
investigation
catalysis
systematically
reviewed,
focusing
dynamics,
reactions,
regulation
methods
SMSI.
The
significant
advantages
technologies
highlighted.
Moreover,
challenges
probable
development
paths
studies
provided.
Small,
Journal Year:
2024,
Volume and Issue:
20(32)
Published: March 15, 2024
Abstract
Artificial
photosynthesis
for
hydrogen
peroxide
(H
2
O
)
presents
a
sustainable
and
environmentally
friendly
approach
to
generate
clean
fuel
chemicals.
However,
the
catalytic
activity
is
hindered
by
challenges
such
as
severe
charge
recombination,
insufficient
active
sites,
poor
selectivity.
Here,
robust
strategy
proposed
regulate
electronic
structure
of
catalyst
collaborative
effect
defect
engineering
dopant.
The
well
designed
oxygen‐doped
CdS
nanorods
with
S
2−
defects
Cd
2+
4
d
10
electron
configuration
(CdS‐O,S
v
successfully
synthesized,
sites
around
or
oxygen
atoms
exhibit
rapid
separation,
suppressed
carrier
enhanced
utilization.
Consequently,
remarkable
H
production
rate
1.62
mmol
g
−1
h
under
air
conditions
acquired,
an
apparent
quantum
yield
(AQY)
9.96%
at
single
wavelength
450
nm.
This
work
provides
valuable
insights
into
synergistic
between
doping
on
activity.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 25, 2024
Precisely
controlling
the
microstructure
of
supported
metal
catalysts
and
regulating
metal-support
interactions
at
atomic
level
are
essential
for
achieving
highly
efficient
heterogeneous
catalysts.
Strong
interaction
(SMSI)
not
only
stabilizes
nanoparticles
improves
their
resistance
to
sintering
but
also
modulates
electrical
between
species
support,
optimizing
catalytic
activity
selectivity.
Therefore,
understating
formation
mechanism
SMSI
its
dynamic
evolution
during
chemical
reaction
scale
is
crucial
guiding
structural
design
performance
optimization
Recent
advancements
in
situ
transmission
electron
microscopy
(TEM)
have
shed
new
light
on
these
complex
phenomena,
providing
deeper
insights
into
dynamics.
Here,
research
progress
TEM
investigation
catalysis
systematically
reviewed,
focusing
dynamics,
reactions,
regulation
methods
SMSI.
The
significant
advantages
technologies
highlighted.
Moreover,
challenges
probable
development
paths
studies
provided.
ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(2), P. 2370 - 2381
Published: Jan. 11, 2024
Fenton-like
reactions
with
Fe-based
metal–organic
framework
(MOF)
catalysts
have
been
extensively
explored
in
the
field
of
environmental
remediation.
However,
easy
precipitation
Fe2+/Fe3+
and
production
sludge
under
basic
conditions
caused
catalyst
loss
greatly
limited
their
large-scale
application
industry.
The
development
an
Fe-free
reaction
is
extreme
importance
remains
its
infant
stage.
Herein,
a
series
dual
MOF
nanoparticles
(HKUST-1/ZIF-67-X)
were
fabricated
by
situ
coating
ZIF-67
on
HKUST-1
systematically
analyzed
various
characterization
techniques,
such
as
scanning
electron
microscopy
(SEM),
transmission
(TEM),
X-ray
diffraction
(XRD),
Fourier
transform
infrared
(FT-IR),
photoelectron
spectroscopy
(XPS),
N2
adsorption–desorption
isotherms.
Subsequently,
these
materials
applied
catalyzing
methylene
blue
(MB)
degradation.
effects
several
operation
parameters,
i.e.,
pH,
H2O2
dosage,
temperature,
MB
degradation
investigated.
It
was
unveiled
that
HKUST-1/ZIF-67-7%
exhibited
outstanding
catalytic
activity
without
any
sludge,
which
could
reach
high
93.29%
efficiency
within
40
min.
This
attributed
to
unique
core–satellite
histoarchitecture
synergistic
effect
between
ZIF-67.
composite
still
achieved
up
80.17%
at
fifth
catalysis
cycle.
Importantly,
significant
wide
pH
range
(4.2–10.1)
top
near
neutral
value.
low
cost,
environment
benignancy,
satisfactory
efficiency,
range,
excellent
reusability
emphasize
great
potential
pollutants.
contribution
provide
paradigm
investigation
for
designing
non-iron-based
solve
increasingly
pressing
pollution
issues.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 28, 2024
Abstract
This
study
presents
a
surface
engineering
strategy
utilizing
electronic
waste
(e‐waste)
to
incorporate
single‐atom
catalysts
on
conjugated
polymers.
Employing
porphyrin
polymeric
photocatalyst,
gold
single‐atom‐site
are
successfully
introduced
using
the
acidic
metal
leachates
from
e‐waste,
where
speciation
and
composition
regulated
during
loading
processes.
The
resulting
photocatalyst
with
single
atoms
demonstrates
remarkable
hydrogen
peroxide
(H
2
O
)
selectivity
of
up
97.56%,
yielding
pure
H
solution
at
73.3
µ
m
h
−1
under
white
LED
illumination.
produced
is
activated
•OH
radicals
same
polymer
mixed
iron
atoms,
enabling
photo‐Fenton
reaction
complete
degradation
toxic
microcystin‐LR
within
10
min
visible
light.
highlights
universal
applicability
mining
in
various
photoreactions.
It
believed
that
this
discovery
pioneers
sustainable
photocatalysis,
allowing
tuning
reactivity
photocatalytic
surfaces
waste.
