Screening of Cu-Based Catalysts for Selective Methane to Methanol Conversion
The Journal of Physical Chemistry C,
Год журнала:
2024,
Номер
128(19), С. 7876 - 7883
Опубликована: Май 3, 2024
Developing
selective
catalysts
for
methane
conversion
to
value-added
chemicals
has
been
considered
a
promising
approach
efficient
utilization
of
abundant
natural
gas
resources.
Here,
we
present
descriptor-based
screening
high
and
methanol
selectivity
at
the
interfaces
between
metal
oxide
clusters
Cu2O/Cu(111)
support
[MOx/Cu2O/Cu(111),
M
=
Mg,
Fe,
Co,
Ni,
Cu,
Zn,
Ti,
Zr,
Sn,
Ce]
on
exposure
mixture
CH4/O2/H2O.
The
activation
energy
direct
conversion,
*OH
+
*CH4
→
*CH3OH
*H,
ratio
adsorption
oxygen
water,
Eads(O2)/Eads(H2O),
are
identified
as
effective
descriptors
selectivity,
respectively.
By
providing
exceptional
hydroxyl
sites
with
high-lying
O
2p
states,
MgO/Cu2O/Cu(111)
catalyst
is
found
be
most
system
among
systems
studied,
being
able
provide
highest
selectivity.
Язык: Английский
Direct Methane to Methanol Conversion Technologies Methods, Applications, and Future Prospects
Elsevier eBooks,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Язык: Английский
Economic Analysis of Direct Methane to Methanol
Elsevier eBooks,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Язык: Английский
Photocatalytic CH4 Upgrading to Multicarbon Products
ACS Catalysis,
Год журнала:
2024,
Номер
14(22), С. 16673 - 16686
Опубликована: Окт. 29, 2024
Methane
is
both
a
greenhouse
gas
and
an
abundant
C1
fuel
resource
that
exists
in
nature.
The
selective
photocatalytic
upgrading
of
methane
into
multicarbon
(C2+)
chemicals
can
mitigate
the
effect
promote
utilization
value
methane,
which
C–C
coupling
step
key
to
production
products.
Achieving
this
targeted
under
ambient
temperature
pressure
conditions
requires
efficient
activation
C–H
bonds
as
well
balancing
adsorption
desorption
various
free
radicals
intermediates
facilitate
coupling.
In
Review,
we
delve
recent
advances
C2+
importance
catalyst
design,
including
active
site
assembly,
crystal
surface,
valence
reconstruction,
first
emphasized.
Then,
discuss
how
coreactants
such
carbon
dioxide
monoxide
be
introduced
enhance
chain
growth
pathways.
Furthermore,
also
summarize
developments
looping
systems
photoelectrocatalysis.
Finally,
conclude
with
outlook
for
future
advancement
field.
This
Review
aims
provide
general
framework
investigating
reactions
toward
products,
thereby
suggesting
research
directions
environmentally
friendly
strategies.
Язык: Английский
La0.4Sr0.6CoO3-Catalyzed Selective Oxidation of Ethylbenzene to Acetophenone without Solvent: A New Reactive Oxygen Species Transformation Mechanism Mediated by •O2– Derived from 1O2
Weiwen Mao,
Jiaheng Qin,
Miao Li
и другие.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 20, 2024
Developing
a
green,
stable,
and
cost-effective
heterogeneous
catalyst
clarifying
its
catalytic
mechanism
for
the
selective
oxidation
of
C–H
bonds
without
solvent
to
carbonyl
compounds
hold
significant
theoretical
practical
value.
Herein,
we
synthesize
perovskite
catalysts
using
sol–gel
method
catalyze
ethylbenzene.
Notably,
La0.4Sr0.6CoO3-800
(800
°C
is
calcination
temperature
catalyst)
demonstrates
remarkable
efficacy,
converting
73%
ethylbenzene
into
acetophenone
with
selectivity
93%.
Characterization
analyses
reveal
that
incorporation
strontium
moderately
disrupts
internal
balance
structure,
leading
increased
oxygen
vacancies
enhanced
adsorption
capacity.
Moreover,
electron
paramagnetic
resonance
mechanistic
studies
prove
molecular
on
surface
converted
singlet
(1O2)
superoxide
radical
anions
(•O2–).
The
presence
1O2
significantly
aids
in
production
•O2–,
thereby
effectively
promoting
This
research
introduces
new
reactive
species
(ROS)
transformation
provides
valuable
insights
hydrocarbons.
Язык: Английский