A Comprehensive Review of the Impact of Nano-Catalysts on Biodiesel Production
Journal of Biosystems Engineering,
Год журнала:
2024,
Номер
49(3), С. 277 - 290
Опубликована: Сен. 1, 2024
Язык: Английский
Efficient and Stable Synthesis of Butyrolactone from Biomass Derived 1,4‐ButaneDiol Dehydrogenation over Cu Supported on MgAl2O4 with Textural Properties
Manne Parusha Ramudu,
T. Jagadish,
K. Eshwari
и другие.
ChemistrySelect,
Год журнала:
2025,
Номер
10(7)
Опубликована: Фев. 1, 2025
Abstract
Copper
based
catalysts
have
gained
significant
attention
due
to
the
exceptional
reactivity
of
Cu
species
in
breaking
OH
and
C─H
bonds
through
oxidation,
as
well
their
cost‐effectiveness.
Herein,
a
series
Cu‐based
MgAl
2
O
4
with
high
dispersed
spinel
oxide
particles
were
synthesized
by
impregnation
method
tested
for
catalytic
dehydrogenation
1,4‐Butanediol
gamma
butyrolactone.
The
15
confirmed
highest
activity
maximum
stability
among
all
catalysts.
Under
moderate
reaction
conditions,
conversion
98%
butyrolactone
selectivity
99%
achieved
on
XRD,
H
‐TPR,
TPD,
BET,
FT‐IR,
N
pulse
characterization
exposed
that
catalyst
prepared
could
be
ascribed
smallest
particle
size,
dispersion,
proper
surface
acid‐base
sites
weak
metal‐support
interaction,
leading
performance.
Язык: Английский
NiO‐CuO Nanoplates as Recyclable and Effective Catalyst for Simple One‐Pot Synthesis of Spiro Dibenzo[1,4]Diazepine/Oxazepine Scaffolds via Multicomponent Strategy
ChemistrySelect,
Год журнала:
2025,
Номер
10(16)
Опубликована: Апрель 1, 2025
Abstract
We
developed
an
eco‐friendly
one‐pot
method
using
synthesized
NiO‐CuO
nanoplates
to
generate
seven‐membered
Spiro
dibenzo[1,4]diazepine
and
oxazepine
moieties.
This
three‐component
reaction
(isatin,
1,2‐phenylenediamine,
cyclohexane‐1,3‐dione)
proceeds
via
enamine–imine
formation
intramolecular
Mannich
with
water
elimination.
enabled
the
of
C─O
C─N
bonds,
yielding
highly
substituted
Dibenzodiazepine
Dibenzoxazepine
derivatives,
along
spiro
benzodiazepine/oxazepine‐oxindoles
containing
a
quaternary
stereogenic
center.
The
use
recyclable
nanocatalyst
in
ethanol‐based
system
ensures
protocol
that
is
both
sustainable
environmentally
friendly.
were
extensively
characterized
powder
XRD,
HRTEM,
EDX,
BET,
TGA
ICPMS.
approach
benefits
from
easily
accessible
starting
materials
cooperative
synergistic
interaction
bimetallic
oxide
nanocatalyst,
operating
under
mild
conditions.
Leaching
tests
confirmed
its
heterogeneous
nature
catalyst
was
reused
for
eight
cycles.
accommodates
broad
range
substrates,
demonstrating
versatility
supported
catalyst.
Язык: Английский
Construction of bimetallic CuMn catalysts supported on ordered mesoporous Al2O3-CeO2 for high-efficient synthesis of furfuryl alcohol from furfural
Journal of Alloys and Compounds,
Год журнала:
2024,
Номер
1008, С. 176499 - 176499
Опубликована: Сен. 17, 2024
Язык: Английский
Optimization, dielectric properties, and antibacterial efficacy of copper-grafted MgO nanoparticles synthesized via sol-gel method
Ceramics International,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 1, 2024
Язык: Английский
Stable RuIr Nanoalloy Catalyst for Levulinic Acid Hydrogenation Reaction
Molecules,
Год журнала:
2024,
Номер
30(1), С. 93 - 93
Опубликована: Дек. 29, 2024
Hydrogenation
of
levulinic
acid
(LA)
represents
a
significant
approach
for
producing
the
high-value
biomass-based
platform
compound
γ-valerolactone
(GVL).
In
this
study,
an
efficient
RuIr
alloy
bimetallic
catalyst
supported
on
SiC
was
synthesized
and
applied
aqueous
hydrogenation
LA
into
GVL
under
mild
conditions.
The
RuIr/SiC
exhibited
high
conversion
selectivity
(both
>
99%)
in
water
at
0.2
MPa
H2
pressure
25
°C.
excellent
performance
is
attributed
to
synergistic
interaction
between
Ru
Ir
nanoparticles
semiconducting
support.
Furthermore,
catalytic
activity
remained
basically
unchanged
after
five
cycles,
confirming
stability
catalyst.
Язык: Английский