Small Structures,
Journal Year:
2022,
Volume and Issue:
3(7)
Published: April 21, 2022
The
2D
hybrid
sub‐1
nm
nanomaterials
(HSNMs)
hold
great
promise
in
catalysis
due
to
the
large
surface
areas
giving
rise
more
catalytic
centers
exposed
and
possible
synergetic
effect
of
multiple
components.
It
is
a
useful
strategy
fabricate
highly
active
selective
HSNMs
catalysts
by
combining
inorganic
compound
with
polyoxometalates
(POMs)
at
scale,
since
POMs
are
usually
easier
accept
or
lose
electrons,
which
possibly
regulate
valence
state
component
leading
enhanced
properties.
Inspired
this,
from
function‐oriented
perspective,
three
sorts
MnO‐POMs
nanosheets
(HSNSs)
successfully
prepared,
perform
outstanding
activity
selectivity
chemoselective
C–H
oxidation
alcohols
aldehydes.
Molecular
dynamic
(MD)
simulations
study
formation
mechanism
HSNSs,
density‐functional
theory
(DFT)
calculations
prove
introduced
slightly
oxidize
Mn
2+
,
thus
improving
oxidizability
MnO
Herein,
new
idea
for
functionally
guided
precise
synthesis
provided.
Scientific Reports,
Journal Year:
2020,
Volume and Issue:
10(1)
Published: March 25, 2020
Abstract
A
novel
catalyst
which
carbon
hybrid
supported
platinum
nanoparticles
were
synthesized
by
our
group
for
the
oxidation
of
benzyl
alcohol
derivatives.
In
this
study,
was
utilized
derivatives
to
benzaldehyde
compounds
in
aqueous
toluene
at
80
°C.
The
high
yields
and
mild
conditions
presence
developed
method.
Additionally,
prepared
have
been
characterized
Transmission
Electron
Microscopy
(TEM),
high-resolution
electron
micrograph
(HR-TEM),
X-ray
Photoelectron
Spectroscopy
(XPS),
Diffraction
(XRD).
mean
particle
size
determined
XRD
technique
found
be
2.83
nm
parallel
with
TEM
analysis.
analysis
also
indicated
that
Pt
evenly
dispersed
on
support
material.
Finally,
Pt@CHs
shown
stable
reusable
reaction,
providing
≤95%
conversion
after
its
3rd
consecutive
use
reaction
various
compounds.
Applied Organometallic Chemistry,
Journal Year:
2022,
Volume and Issue:
37(2)
Published: Oct. 22, 2022
A
dioxidotungsten(VI)
complex,
[WO
2
L(CH
3
OH)]·0.5(CH
OH)
(
1
),
was
prepared
by
the
reaction
of
WCl
6
and
tridentate
ONO‐donor
Schiff
base
ligand
H
L
)
that
obtained
from
2‐hydroxy‐1‐naphthaldehyde
with
4‐aminobenzoic
hydrazide.
Both
were
characterized
various
analyses
including
nuclear
magnetic
resonance
(NMR),
Fourier
transform
infrared
spectroscopy
(FT‐IR)
UV–Vis
spectroscopy,
elemental
analysis.
Single
crystal
X‐ray
analysis
used
to
determine
structure
which
revealed
there
is
a
free
‐NH
group
in
its
structure.
Therefore,
heterogeneous
catalyst
supporting
on
propionyl
chloride‐functionalized
silica
gel.
The
synthesized
supported
Si‐W
diffuse
reflectance
(DRS),
thermogravimetric
(TGA),
FT‐IR,
scanning
electron
microscope
(SEM),
photoelectron
(XPS),
energy‐dispersive
(EDS),
powder
diffraction
(XRD)
analyses.
utilized
oxidation
benzyl
alcohol
derivatives
O
under
reflux
condition
at
air
atmosphere.
effects
concentration
oxidant,
temperature,
nature
solvent
catalytic
performance
resulting
compound
investigated
results
indicated
they
have
considerable
effect
activity
selectivity
.
recovered
several
times
reused
for
reaction.
FT‐IR
SEM,
TGA,
EDS,
XRD
are
no
differences
between
fresh
one.
show
complex
active
stable
benzylic
alcohols
depends
condition.
