Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
145(7), P. 4142 - 4149
Published: Feb. 8, 2023
Alkene
functionalization
with
a
single-atom
catalyst
(SAC)
which
merges
homogeneous
and
heterogeneous
catalysis
is
fascinating
route
to
obtain
high-value-added
molecules.
However,
C–N
bond
formation
of
alkene
SAC
still
unexplored.
Herein,
bimetal-organic
framework-derived
Co–N/C
an
atomically
dispersed
cobalt
center
reported
show
good
activity
chemoselective
aziridination/oxyamination
reactions
from
hydroxylamine,
late-stage
complex
alkenes
diversified
synthetic
transformations
the
aziridine
product
further
expand
utility
this
method.
Moreover,
system
proceeds
without
external
oxidants
exhibits
mild,
atom-economic,
recyclable
characters.
Detailed
spectroscopic
characterizations
mechanistic
studies
revealed
structure
catalytic
possible
intermediates
involved
in
mechanism
cycle.
Materials Today Catalysis,
Journal Year:
2023,
Volume and Issue:
2, P. 100009 - 100009
Published: June 27, 2023
Developing
high-performance
and
cost-effective
electrocatalysts
for
clean
renewable
energy
conversion
process
has
been
proved
a
promising
approach
to
deal
with
the
global
environment
issues.
Single-atom
alloy
(SAA)
catalyst,
foreign
metal
atoms
atomically
dispersed
in
surface
of
host
metal,
combines
merits
conventional
alloys
single-atom
catalysts.
The
maximum
atomic
utilization
active
unique
structural
electrical
properties
SAA
offer
great
potential
boosting
electrocatalytic
activity
reducing
cost
manufacture.
Meanwhile,
well-defined
sites
raise
an
opportunity
shed
light
on
structure-activity
relationship
further
direct
synthesis
high-efficiency
electrocatalysts.
Herein,
we
focus
recent
developments
advanced
catalysts
discussed
general
SAAs.
Then
design
principle
synthetic
methods
were
summarized.
Next,
highlighted
practical
applications
SAAs
chemicals
production,
including
hydrogen
evolution
reaction,
oxygen
CO2
reduction
N2
reaction
other
representative
reactions.
Finally,
challenges
future
directions
are
presented.
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(10), P. 7110 - 7121
Published: May 10, 2023
CO2
(CO)
hydrogenation
presents
the
widest
route
to
synthesis
of
various
valuable
organic
molecules,
but
precise
carbon–carbon
coupling
control
targeted
products
along
with
elimination
byproducts
remains
a
challenge.
We
overcome
these
limitations
by
synthesizing
CeO2-supported
dual
Pd
site
catalyst
that
could
actively
catalyze
conversion
into
single-product
ethanol
almost
without
C1
in
continuous-flow
fixed-bed
reactor.
This
surprising
finding
is
derived
from
observation
synergistic
catalysis
between
atoms
leads
extraordinary
ability
for
cleavage
C–O
bond
*CHxOH
species
and
*CHx
*CO
species.
Furthermore,
sites
be
stabilized
through
enriching
situ
formed
water
nano
reactor
hydrophobic
shell
layer,
thus
leading
remarkably
improved
catalytic
stability
production.
As
result,
as-constructed
exhibited
superior
selectivity
at
98.7%,
corresponding
productivity
up
11.6
g
per
gram
hour
excellent
during
continuous
test
60
h.
Our
results
demonstrate
multifunctional
active
can
break
restriction
reaction
involving
single
catalyst.
Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
145(7), P. 4142 - 4149
Published: Feb. 8, 2023
Alkene
functionalization
with
a
single-atom
catalyst
(SAC)
which
merges
homogeneous
and
heterogeneous
catalysis
is
fascinating
route
to
obtain
high-value-added
molecules.
However,
C–N
bond
formation
of
alkene
SAC
still
unexplored.
Herein,
bimetal-organic
framework-derived
Co–N/C
an
atomically
dispersed
cobalt
center
reported
show
good
activity
chemoselective
aziridination/oxyamination
reactions
from
hydroxylamine,
late-stage
complex
alkenes
diversified
synthetic
transformations
the
aziridine
product
further
expand
utility
this
method.
Moreover,
system
proceeds
without
external
oxidants
exhibits
mild,
atom-economic,
recyclable
characters.
Detailed
spectroscopic
characterizations
mechanistic
studies
revealed
structure
catalytic
possible
intermediates
involved
in
mechanism
cycle.
