ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(3), P. 1797 - 1807
Published: Jan. 19, 2024
Au
nanoparticles
supported
on
the
exterior
surface
of
ZSM-5
zeolite
(Au/ZSM-5)
have
shown
ability
to
partially
oxidize
methane
methanol
and
acetic
acid.
However,
further
improvements
catalyst
activity
are
required.
This
study
investigates
effect
modifying
acidic
properties
support
through
a
desilication–recrystallization
(DR)
process
Au/ZSM-5
catalysts
toward
oxidation.
A
DR
treatment
24
h
leads
50%
higher
oxygenate
yield
compared
analogous
prepared
using
untreated
support.
Characterization
solid-state
27Al
NMR
FTIR
adsorption
pyridine
2,4,6-trimethylpyridine
reveals
that
induces
framework
dealumination
redistribution
Brønsted
acid
sites
external
surface.
Two-dimensional
MQMAS
identifies
coordinated
Al
surface,
correlating
with
yield.
These
help
stabilize
nanoparticles,
enhancing
stability
for
partial
ACS ES&T Engineering,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 2, 2025
Methane,
a
potent
greenhouse
gas
(GHG),
has
exhibited
persistent
escalation
in
emissions
from
the
energy
sector.
The
imperative
to
mitigate
these
become
paramount,
and
one
promising
avenue
is
catalytic
conversion
of
methane
into
diverse
chemicals.
This
review
focuses
on
exploration
valuable
compounds,
including
syngas,
olefins,
methanol.
As
advancements
catalysis
technology
studies
have
unfolded,
numerous
additional
insights
novel
significant
compounds
surfaced.
provides
an
in-depth
analysis,
focusing
predominantly
latest
cutting-edge
innovations
methodologies
encompassing
acetonitrile
hydrogen
cyanide
conversion,
selective
formaldehyde,
pyrolysis
solid
carbon
hydrogen,
application
plasma-aided
technology.
Additionally,
it
endeavors
elucidate
critical
parameters
advantages
addresses
intricate
array
limitations
future
prospects
such
as
theoretical
calculations
artificial
intelligence
(AI)-aided
catalyst
design.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(16)
Published: March 1, 2024
Direct
methane
conversion
(DMC)
to
oxygenates
at
low
temperature
is
of
great
value
but
remains
challenging
due
the
high
energy
barrier
for
C-H
bond
activation.
Here,
we
report
that
in
situ
decoration
Pd
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(3), P. 1797 - 1807
Published: Jan. 19, 2024
Au
nanoparticles
supported
on
the
exterior
surface
of
ZSM-5
zeolite
(Au/ZSM-5)
have
shown
ability
to
partially
oxidize
methane
methanol
and
acetic
acid.
However,
further
improvements
catalyst
activity
are
required.
This
study
investigates
effect
modifying
acidic
properties
support
through
a
desilication–recrystallization
(DR)
process
Au/ZSM-5
catalysts
toward
oxidation.
A
DR
treatment
24
h
leads
50%
higher
oxygenate
yield
compared
analogous
prepared
using
untreated
support.
Characterization
solid-state
27Al
NMR
FTIR
adsorption
pyridine
2,4,6-trimethylpyridine
reveals
that
induces
framework
dealumination
redistribution
Brønsted
acid
sites
external
surface.
Two-dimensional
MQMAS
identifies
coordinated
Al
surface,
correlating
with
yield.
These
help
stabilize
nanoparticles,
enhancing
stability
for
partial
