Tuijin Jishu/Journal of Propulsion Technology,
Год журнала:
2023,
Номер
44(3), С. 3988 - 4006
Опубликована: Ноя. 22, 2023
This
systematic
review
delves
into
the
mechanisms
of
catalytic
reactions
on
K10
clay,
synthesizing
a
wealth
experimental
and
computational
insights
to
offer
comprehensive
understanding.
The
versatility
clay
is
dissected
across
diverse
reactions,
including
esterification,
aldol
condensation,
methane
activation,
biomass
conversion,
redox
ester
hydrolysis,
tandem
reactions.
Thematic
analysis
unravels
broad
spectrum
applications
for
emphasizing
need
nuanced
understanding
reaction-specific
mechanisms.
A
critical
comparative
approaches
showcases
their
complementary
roles
in
unraveling
intricacies
catalysis.
quality
assessment
process
underscores
methodological
rigor
individual
studies,
guiding
interpretation
findings.
Practical
implications
environmental
remediation,
fine
chemical
synthesis,
industrial
processes
are
discussed,
accompanied
by
identified
gaps
that
delineate
future
research
directions.
not
only
advances
but
also
serves
as
template
explorations
dynamic
realm
materials.
With
foundation
built
rigorous
thoughtful
integration
findings,
this
aims
inspire
continued
innovation
investigation
field
catalysis
research.
Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
63(15), С. 6577 - 6590
Опубликована: Апрель 4, 2024
The
beneficial
impact
of
carbon
coated
alumina
(C@Al2O3)
implemented
as
support
for
the
CoMoS
hydrotreating
catalyst
has
been
demonstrated.
A
series
C@Al2O3
supports
with
varying
contents
were
obtained
by
pyrolysis
sorbitol
preliminarily
impregnated
in
from
an
aqueous
solution.
It
was
found
that
coating
positively
affects
formation
high-active
phase.
However,
control
content
2.3
to
11.3
wt
%
is
essential
maintain
sulfide
particles
dispersion
and
textural
properties.
CoMoS/C@Al2O3
catalysts
demonstrated
superior
hydrodesulfurization
activity
compared
CoMoS/Al2O3.
hydrodenitrogenation
most
samples
similar
CoMoS/Al2O3
but
decreases
when
exceeds
%.
determining
factor
improving
defective
graphene
fragments,
which
partially
cover
surface
help
reduce
acidity
and,
therefore,
metal–support
interaction
while
maintaining
characteristics.
ACS Omega,
Год журнала:
2024,
Номер
9(17), С. 19057 - 19062
Опубликована: Апрель 16, 2024
The
dramatic
increase
in
plastics
production,
coupled
with
a
low
recycling
and
recovery
rate,
has
been
major
challenge
for
sustainable
practices
combating
climate
change.
Hydrotreatment
processing
to
upgrade
fuel
oils
is
well-known
process
the
petroleum
industry.
In
this
work,
we
aim
investigate
catalyst
properties
before
after
hydrotreatment
of
pyrolysis
oil
derived
from
plastics,
namely,
linear
low-density
polyethylene,
as
no
such
report
available
literature.
Granular
powder
forms
Pt/Al2O3
were
used
study
characterization
methods
executed
such:
transmission
electron
microscopy,
X-ray
photoelectron
spectroscopy
(XPS),
diffraction
(XRD),
thermogravimetric
analysis
(TGA),
IR-RIS.
XRD
data
show
that
crystallinity
support
was
unaffected
by
without
any
residues
left,
characteristic
peaks
indicated
crystalline
phase
37.4,
39.8,
46.3,
67.3°.
addition,
TGA
experiments
revealed
carbon
deposition
on
spent
higher,
higher
weight
loss
(15.359%)
compared
fresh
sample
(11.43%).
XPS
showed
more
intense
granular
catalyst,
intensity
some
15
times
greater
than
catalyst.
Also,
observed
less
coke
formed.
band
at
1624.05
cm–1
IR-RIS
spectra
attributed
shifted
C═O
formation.
extension
these
investigations
using
different
catalysts
improve
their
characteristics
performance
inhibit
will
contribute
incorporation
processes
industry
well
cost
fuels.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(47), С. 17135 - 17146
Опубликована: Ноя. 14, 2024
Improving
both
the
activity
and
stability
is
of
great
importance
for
MoS2-based
catalysts
in
hydrodeoxygenation
(HDO)
reaction.
Herein,
we
report
construction
monolayer
CoMoS
anchored
on
hydrophobic-reduced
graphene
nanoribbons
(ML-CoMoS/rGNRs)
which
exhibited
excellent
HDO
4-methylphenol.
The
superior
was
attributed
to
single
layer
structure
MoS2,
allows
good
exposure
abundant
edge
sites
accommodating
Co
promoters
form
Co–Mo–S
active
phase.
Besides,
hydrophobicity
rGNRs
enables
fast
removal
H2O
during
reaction,
alleviates
sulfur
loss
endows
supported
monolayers.
Consequently,
ML-CoMoS/rGNRs
afforded
97.3%
conversion
98.4%
toluene
selectivity
at
220
°C
least
five
reaction
cycles.
This
work
provides
novel
insights
designing
highly
stable
metal
sulfide
application
