ACS Omega,
Journal Year:
2025,
Volume and Issue:
10(9), P. 9649 - 9660
Published: Feb. 24, 2025
Construction
of
a
C-C
bond
via
alkylation
ketones
with
alcohol
as
the
alkylating
source
by
employing
hydrogen-borrowing
strategy
is
attracting
significant
attention
and
highly
appealing
due
to
its
simplicity,
cost-effectiveness,
environmental
benefits,
fact
that
water
only
byproduct.
The
development
heterogeneous
catalysts
based
on
nonprecious
base
metals
progressing
rapidly.
Our
newly
disclosed
manganese-doped
cerium
oxide
nanocomposite
(10
wt
%
Mn@CeO2)
stands
out
cost-efficient
air-stable
catalyst,
synthesized
through
straightforward
coprecipitation
method
employed
for
α-alkylation
primary
alcohols
strategy.
X-ray
diffraction
(XRD)
analysis
confirms
high
crystallinity
CeO2,
while
field
emission
scanning
electron
microscopy
(FE-SEM)
high-resolution
transmission
(HR-TEM)
images
reveal
MnO2
nanoparticles,
measuring
19
nm
in
size,
uniformly
decorated
rod-shaped
CeO2
which
have
size
33
nm.
photoelectron
spectroscopy
(XPS)
uncovers
presence
Mn4+
species
embedded
nanorods.
Electron
paramagnetic
resonance
(EPR)
further
indicates
surface
defects
contribute
impressive
catalytic
yield,
ranges
from
70
98%
α-alkylated
ketones.
Thermogravimetric
(TGA)
demonstrates
remarkable
thermal
stability
maintaining
up
800
°C.
Additionally,
inductively
coupled
plasma
mass
spectrometry
(ICP-MS)
no
leaching
Mn
ions,
emphasizing
heterogeneity
catalyst.
Remarkably,
10
Mn@CeO2
recycled
six
cycles
loss
activity.
This
study
underscores
synergistic
effect
between
metal
redox
pair
key
exceptional
activity
reactions,
making
promising
catalyst
sustainable
efficient
formation.
Catalysis Science & Technology,
Journal Year:
2022,
Volume and Issue:
12(7), P. 2106 - 2121
Published: Jan. 1, 2022
ZIF-derived
metal/N-doped
porous
carbon
have
emerged
as
efficient
heterogeneous
catalysts
in
organic
reactions,
due
to
controllable
3D
structure,
uniformly
dispersed
metal
sites,
tunable
metal–support
interactions
and
superior
catalytic
performance.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(30)
Published: April 20, 2023
Abstract
Recently,
atomically
dispersed
dual‐metal
sites
carbocatalysts
(DMSCs)
make
a
wave
in
the
field
of
persulfate‐based
advanced
oxidation
processes
(PS‐AOPs)
light
their
≈100%
atomic
utilization
efficiency,
high
density
active
sites,
and
superior
catalytic
activity.
This
review
aims
to
provide
state‐of‐the‐art
overview
on
development
DMSCs
for
activating
PS.
Initially,
types
properties
are
summarized,
as
well
role
doping
different
heteroatoms
is
discussed.
Subsequently,
carbon
carriers
methods
synthesis
outlined.
After
that,
mechanism
application
activation
PS
toward
organic
contaminants
degradation
revealed.
Particularly,
nonradical
pathway
described,
necessity
coupling
DMSCs‐based
PS‐AOPs
other
practical
water
treatment
emphasized.
Finally,
formidable
challenges
future
research
directions
proposed.
expected
insight
into
preparation
nanomaterials
broaden
path
environmental
applications.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(36), P. 24842 - 24854
Published: Aug. 26, 2024
Atomically
dispersed
Fe-N-C
catalysts
emerged
as
promising
alternatives
to
commercial
Pt/C
for
the
oxygen
reduction
reaction.
However,
majority
of
showed
unsatisfactory
activity
and
durability
due
their
inferior
O-O
bond-breaking
capability
rapid
Fe
demetallization.
Herein,
we
create
a
pseudo-phthalocyanine
environment
coordinated
diatomic
iron
(Fe
Small,
Journal Year:
2024,
Volume and Issue:
20(33)
Published: March 31, 2024
Designing
biomimetic
nanomaterials
with
peroxidase
(POD)-like
activity
at
neutral
pH
remains
a
significant
challenge.
An
S-doping
strategy
is
developed
to
afford
an
iron
single-atom
nanomaterial
(Fe
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(20), P. 14194 - 14202
Published: May 8, 2024
Single-atom
catalysts,
characterized
by
transition
metal–(N/O)4
units
on
nanocarbon
(M–(N/O)4–C),
have
emerged
as
efficient
performers
in
water
electrolysis.
However,
there
are
few
guiding
principles
for
accurately
controlling
the
ligand
fields
of
single
atoms
to
further
stimulate
catalyst
activities.
Herein,
using
Ni–(N/O)4–C
unit
a
model,
we
develop
modification
P
anion
outer
shells
modulate
morphology
ligand.
The
thus
prepared
possesses
high
activity
and
excellent
long-term
durability,
surpassing
commercial
Pt/C,
RuO2,
currently
reported
single-atom
catalysts.
Notably,
mechanistic
studies
demonstrated
that
pseudocapacitive
feature
multiscale
anion-hybrid
is
considerable
at
accumulating
enough
positive
charge
[Q],
contributing
oxygen
evolution
reaction
(OER)
order
(β)
through
rate
formula.
DFT
calculations
also
indicate
catalytic
decided
suitable
barrier
energy
intermediates
due
accumulation.
This
work
reveals
origin
multihybrid
nanocarbon,
providing
clear
experiential
formula
designing
electronic
configuration
catalysts
boost
electrocatalytic
performance.
