An
efficient
heterogeneous
catalytic
system
for
the
[4+2]
annulation
reactions
between
tertiary
anilines
and
tetrahydrofuran
has
been
developed
based
on
CuCoFe
layered
double
oxide
in
study.
Cu+
species
was
believed
to
play
crucial
role
transformation,
synergistic
effect
Cu
CoFe
observed
reaction.
Various
could
be
tolerated
by
present
system.
A
series
of
control
experiments
were
conducted
determine
reaction
intermediates.
distinctive
mechanism
described
these
results
kinetic
isotopic
effects
experiments.
Current Research in Microbial Sciences,
Год журнала:
2024,
Номер
6, С. 100237 - 100237
Опубликована: Янв. 1, 2024
Due
to
an
increase
in
industrialization
and
urbanization,
massive
amounts
of
solid
waste
biomass
are
speedily
accumulating
our
environment,
which
poses
several
adverse
effects
on
habitat
human
health
thus
becoming
a
matter
discussion
the
environmental
community.
With
reference
circular
economy,
continuous
efforts
have
been
put
forward
for
setting
up
organised
management
approach
combination
with
efficient
treatment
technique
increasing
profitable
utilization
waste.
This
review
aims
provide
systematic
recent
thermochemical
technologies
employed
converting
generated
from
different
sources
into
valuable
products
like
biochar,
bio-oil,
heat,
energy
syngas.
The
article
further
focuses
few
important
aspects
conversion
useful
technical
factors
affecting
processes,
applications
by-products
conversion,
biological
pretreatment
biomass.
assists
interesting
scientific
trends
boosting
valorization
through
low-cost,
efficient,
environment-friendly
sustainable
technologies.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 1, 2025
This
experimental
study
based
on
DOE
(Design
of
experiments)
explores
the
performance
and
emission
characteristics
Moringa
oleifera-based
biodiesel
blends
enhanced
with
zirconium
oxide
(ZrO2)
1-hexanol
as
boosting
agents
in
a
slow-speed
diesel
engine
operating
at
1500
rpm.
The
novelty
lies
synergistic
use
these
additives
for
improving
fuel
efficiency
reducing
emissions,
combined
advanced
statistical
machine
learning
models
optimization
prediction.
Four
test
were
analyzed:
90D5MO5H
+
25
ppm
ZrO2,
80D10MO10H
50
70D15MO15H
75
100MO
100
ZrO2.
A
comprehensive
methodology
involving
testing
modelling
using
Gradient
Boosting
(GBoost),
Extreme
Learning
Machine
(ELM),
Response
Surface
Methodology
(RSM)
was
employed.
Key
findings
include
brake
thermal
(BTE)
8.63%
higher
than
consumption
reduction
46.13%
(0.14
kg/kWh)
ZrO2
blend.
blend
also
demonstrated
superior
combustion
characteristics,
including
peak
cylinder
pressure
70
bar
heat
release
rate
(HRR)
45
J/°CA.
Emission
analysis
revealed
significantly
reduced
hydrocarbon
emissions
(0.020%)
lowest
carbon
monoxide
(10.1%)
Among
predictive
models,
ELM
exhibited
highest
accuracy
an
R2
value
0.9604,
outperforming
other
approaches.
suggest
that
optimized
moringa
oleifera
offer
promising
solution
sustainable
cleaner
operation,
potential
applications
transportation
energy
sectors
aiming
environmental
impact.
Membranes,
Год журнала:
2023,
Номер
13(12), С. 889 - 889
Опубликована: Ноя. 27, 2023
Membrane
technology
has
been
embraced
as
a
feasible
and
suitable
substitute
for
conventional
time-
energy-intensive
biodiesel
synthesis
processes.
It
is
ecofriendly,
easier
to
run
regulate,
requires
less
energy
than
approaches,
with
excellent
stability.
Therefore,
the
present
study
involved
application
of
highly
reactive
recyclable
Titania-based
heterogeneous
nanocatalyst
(TiO2)
production
from
nonedible
Azadhiracta
indica
seed
oil
via
membrane
reactor,
since
easily
widely
accessible
rich
content
(39%
w/w).
The
high
free
fatty
acids
(6.52
mg/g
KOH)
was
decreased
1%
two-step
esterification.
Following
esterification,
transesterification
performed
using
TiO2
under
optimum
conditions,
such
9:1
methanol–oil
molar
ratio,
90
°C
reaction
temperature,
2
wt.%
catalyst
loading,
an
agitation
rate
600
rpm,
yield
optimized
through
response
surface
methodology
(RSM).
contains
68.98%
unsaturated
(61.01%
oleic
acid,
8.97%
linoleic
acid)
31.02%
saturated
(15.91%
palmitic
15.11%
stearic
acid).
These
transformed
into
respective
methyl
esters,
total
up
95%
achieved.
analyzed
advanced
characterization
techniques
like
gas
chromatography–mass
spectrometry
(GC-MS),
Fourier
transform
infrared
spectroscopy
(FT-IR),
nuclear
magnetic
resonance
(NMR),
whereas
characterized
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
energy-dispersive
(EDX),
(FT-IR).
Due
its
physicochemical
properties,
Azadirachta
recommended
feedstock
production.
Moreover,
it
concluded
that
effective
high-quality
liquid
fuel
in
which
could
be
optional
green
route
cleaner
bioenergy,
eventually
leading
sustenance,
robustness,
resilience
will
aid
developing
holistic
framework
integrated
waste
management.
International Journal of Renewable Energy Development,
Год журнала:
2024,
Номер
13(3), С. 405 - 429
Опубликована: Март 15, 2024
As
a
sustainable
replacement
for
fossil
fuels,
biodiesel
is
game-changer
in
the
energy
sector.
There
no
strategy
to
minimize
biodiesel's
significance
as
sustainable,
clean
fuel
source
light
of
increasing
climate
change
and
environmental
sustainability
concerns.
Nevertheless,
conventional
production
methods
often
run
into
problems
like
inadequate
conversion
efficiency
inappropriate
properties,
which
impede
their
broad
adoption.
The
revolutionary
potential
nanotechnology
circumvent
these
limitations
revolutionize
consumption
explored
this
review
paper.
are
new
possibilities
improving
output
engine
efficiency,
thanks
nanotechnology,
can
alter
matter
at
atomic
molecular
levels.
Using
nano-catalysts,
nano-emulsification
processes,
nano-encapsulation
procedures,
researchers
have
made
significant
advances
qualities
such
stability,
combustion
viscosity.
Through
comprehensive
analysis
current
literature
research
data,
article
elucidates
crucial
role
advancing
technology.
By
shedding
on
most
advancements,
challenges,
future
outcomes
nano-based
manufacturing
consumption,
hopes
add
growing
corpus
knowledge
field
inspire
additional
innovation.
In
conclusion,
there
great
hope
future,
increased
economic
growth,
reduced
impacts
through
application
nanotechnology.
Advanced Sustainable Systems,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 23, 2025
Abstract
This
work
suggests
a
synthetic
strategy
for
the
development
of
durable
metal
oxide
heterogeneous
nanocatalysts
used
conversion
biomass
into
polymer
platforms.
MnO
2
nanowires
are
coated
with
conjugated
microporous
polymers.
Successive
calcination
under
argon
results
in
generation
nanoparticles
confined
within
carbon
tubes
(CTs).
The
resultant
MnO@CTs
show
good
catalytic
performance
transesterification
dimethyl
furan
dicarboxylate
various
diols
to
platforms,
diols.
While
commercial
poor
durability,
due
their
facile
aggregation,
optimal
MnO@CT‐1
shows
excellent
recyclability
and
durability.
