Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: March 6, 2025
In
this
work,
graphene
oxide
(GO)
nanoparticles
were
synthesized
and
subsequently
modified
using
3-aminopropyltrimethoxysilane
(APTMS).
An
Anderson-type
polyoxometalate
[(C4H9)4N]2[CrMo6O18(OH)6]
was
then
immobilized
on
the
surface
of
nanoparticles.
The
obtained
catalyst
characterized
Fourier-transform
infrared
spectroscopy
(FT-IR),
energy-dispersive
X-ray
(EDS),
inductively
coupled
plasma
(ICP),
thermogravimetric
analysis
(TGA),
scanning
electron
microscopy
(SEM),
Raman
spectroscopy,
diffraction
(XRD).
catalytic
performance
recyclable
hybrid
evaluated
for
synthesis
benzimidazole
derivatives
at
75
°C
under
solvent-based
conditions.
demonstrated
easy
separation
could
be
successfully
reused
least
six
times
with
only
a
slight
reduction
in
yield
desired
product.
Leaching
recovery
tests,
along
FT-IR
analysis,
confirmed
high
stability
catalytically
active
species
heterogeneous
nature
catalyst.
RSC Advances,
Journal Year:
2023,
Volume and Issue:
13(18), P. 12572 - 12588
Published: Jan. 1, 2023
In
this
paper,
KIT-6@SMTU@Ni
was
successfully
synthesized
via
a
new
method
of
Ni(ii)
complex
stabilization
on
modified
mesoporous
KIT-6,
as
novel
and
green
heterogeneous
catalyst.
The
obtained
catalyst
(KIT-6@SMTU@Ni)
characterized
using
Fourier
transform
infrared
spectroscopy
(FT-IR),
Brunauer-Emmett-Teller
(BET)
calculation,
X-ray
diffraction
(XRD),
atomic
absorption
(AAS),
energy-dispersive
(EDS),
mapping,
thermogravimetric
analysis
(TGA)
techniques
scanning
electron
microscopy
(SEM).
After
complete
characterization
the
catalyst,
it
used
for
synthesis
5-substituted
1H-tetrazoles
pyranopyrazoles.
Moreover,
tetrazoles
were
from
benzonitrile
derivatives
sodium
azide
(NaN3).
All
tetrazole
products
with
high
TON,
TOF
excellent
yields
(88-98%)
in
reasonable
time
(0.13-8
h),
demonstrating
efficiency
practicality
Furthermore,
pyranopyrazoles
prepared
through
condensation
reaction
benzaldehyde
malononitrile,
hydrazine
hydrate
ethyl
acetoacetate
(87-98%)
at
appropriate
times
(2-10.5
h).
could
be
reused
five
runs
without
any
re-activation.
Significantly,
plotted
protocol
has
prominent
benefits,
such
applying
solvents,
use
commercially
available
low-cost
materials,
separation
reusability
short
time,
yield
facile
work-up.
Applied Organometallic Chemistry,
Journal Year:
2024,
Volume and Issue:
38(3)
Published: Jan. 4, 2024
Boehmite
is
one
of
the
stable
phases
alumina
that
easily
available,
and
it
also
has
a
variety
applications.
Therefore
in
this
work,
for
preparation
AlOOH,
Sodium
hydroxide
(NaOH)
solutions
was
added
to
aluminum
nitrate
nonahydrate
(Al(NO
3
)
.9H
2
O)
solution.
Then,
surface
AlOOH
modified
with
(3‐aminopropyl)triethoxysilane
(APTES),
due
high
condensation
hydroxyl
groups
on
its
surface.
di(pyridin‐2‐yl)methanone
(di(PM))
immobilized
toward
synthesis
Schiff‐base
(di(PM)@AlOOH)
as
heterogeneous
ligand.
Finally,
palladium
complex
(Pd‐di(PM)@AlOOH)
reusable,
practical,
novel
nanocatalyst.
Pd‐di(PM)@AlOOH
characterized
by
thermogravimetric
analysis
(TGA)
analysis,
Fourier‐transform
infrared
spectroscopy
(FT‐IR),
transmission
electron
microscopy
(TEM),
scanning
microscope
(SEM)
imaging,
energy‐dispersive
X‐ray
(EDS)
wavelength‐dispersive
(WDX)
inductively
coupled
plasma
(ICP)
analysis.
After
characterization
Pd‐di(PM)@AlOOH,
performance
used
highly
stable,
retrievable,
hybrid
organic–inorganic
catalyst
C‐C
coupling
Suzuki
reaction.
The
hot
filtration
study
revealed
acts
heterogeneously
We
found
can
be
recycled
five
runs
without
leaching,
studied
test
ICP
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: April 11, 2023
Boehmite
is
a
natural
and
environmentally
friendly
compound.
Herein
boehmite
nanoparticles
were
primarily
synthesized
and,
then,
their
surface
modified
via
3-choloropropyltrimtoxysilane
(CPTMS).
Afterwards,
new
samarium
complex
was
stabilized
on
the
of
(Sm-bis(PYT)@boehmite).
The
obtained
characterized
using
thermogravimetric
analysis
(TGA),
energy
dispersive
X-ray
spectroscopy
(EDS),
Brunauer-Emmett-Teller
(BET),
wavelength
(WDX),
scanning
electron
microscope
(SEM),
Fourier
transform
infrared
(FT-IR),
Inductively
coupled
plasma
mass
spectrometry
(ICP-MS),
dynamic
light
scattering
(DLS),
diffraction
(XRD)
pattern.
Sm-bis(PYT)@boehmite
used
as
an
friendly,
efficient,
organic-inorganic
hybrid
nanocatalyst
in
homoselective
synthesis
tetrazoles
polyethylene
glycol
400
(PEG-400)
green
solvent.
Notably,
stable
has
heterogeneous
nature.
Thus,
it
can
be
reused
for
several
runs
without
any
re-activation.
ChemistrySelect,
Journal Year:
2023,
Volume and Issue:
8(24)
Published: June 22, 2023
Abstract
In
first
part,
boehmite
nanoparticles
were
synthesized
using
aqueous
solutions
of
NaOH
and
Al(NO
3
)
⋅
9H
2
O.
Then,
it
surface
was
modified
by
3‐choloropropyltrimtoxysilane,
further
1,3‐bis(pyridin‐3‐ylmethyl)thiourea
anchored
on
the
nanoparticles.
final
step,
a
neodymium
complex
stabilized
its
(Nd‐bis(PYT)@boehmite
NPs).
The
obtained
characterized
TGA,
BET,
ICP,
EDS,
WDX,
SEM,
XRD
techniques.
second
Nd‐bis(PYT)@boehmite
NPs
employed
as
an
efficient,
recoverable,
organic‐inorganic
hybrid
nanocatalyst
in
homo‐selective
synthesis
tetrazole
compounds.
chemoselectivity
studied
[3+2]
cycloaddition
phthalonitrile
sodium
azide
(NaN
).
This
catalyst
is
stable
has
heterogeneous
nature
therefore
can
be
recovered
used
again
for
several
consecutively
run
without
any
re‐activation
Applied Organometallic Chemistry,
Journal Year:
2024,
Volume and Issue:
38(4)
Published: Feb. 18, 2024
In
this
article,
the
mesoporous
silica
framework
of
KIT‐6
was
synthesized
and,
then
its
surface
modified
using
3‐aminopropyltrimethoxysilane
(APTMS).
The
new
KIT‐6@DABP@Cu
nanocatalyst
prepared
by
anchoring
copper
complex
on
KIT‐6.
identified
several
techniques,
including
FT‐IR,
WDX,
AAS,
SEM,
TGA,
XRD,
EDS,
and
BET.
physical
properties,
such
as
size,
shape,
morphology
were
studied
SEM
analysis.
elemental
composition
described
wavelength
dispersive
X‐ray
spectroscopy
(WDX)
EDS.
FT‐IR
used
to
characterize
functional
groups
in
structure
nanoparticles.
stability
TGA
at
high
temperatures.
Also,
area,
total
volume,
average
diameter
pores
determined
Brunauer–Emmett–Teller
(BET)
catalyst
found
be
a
new,
highly
effective,
green
for
synthesizing
5‐substituted‐tetrazoles
nitriles
sodium
azide
(NaN
3
)
catalyzed
polyethyleneglycol‐400
(PEG‐400)
solvent.
This
heterogeneous
showed
good
recyclability
up
five
consecutive
cycles
without
notable
loss
catalytic
efficiency.
Nanoscale Advances,
Journal Year:
2024,
Volume and Issue:
6(15), P. 3948 - 3960
Published: Jan. 1, 2024
Waste
recycling,
novel
and
easy
methods
of
recycling
catalysts,
use
green
solvents,
selective
catalysts
preventing
the
production
by-products
are
most
important
principles
chemistry
modern
technology.
Therefore,
in
this
work,
biochar
nanoparticles
(B-NPs)
were
synthesized
by
pyrolysis
chicken
manure
as
a
method
for
waste
recycling.
Subsequently,
B-NPs
magnetized
Fe(0)
to
improve
recovery
biochar.
Then,
surface
magnetic
(FeB-MNPs)
was
modified
(3-chloropropyl)trimethoxysilane
(3Cl-PTMS).
Finally,
multidentate
copper
complex
2,2'-(propane-1,3-diylbis(oxy))dianiline
(P.bis(OA))
immobilized
on
FeB-MNPs,
which
labeled
Cu-P.bis(OA)@FeB-MNPs.
Cu-P.bis(OA)@FeB-MNPs
investigated
commercial,
homoselective,
practical,
recyclable
nanocatalyst
synthesis
5-substituted-1
