ACS Catalysis,
Год журнала:
2023,
Номер
13(20), С. 13704 - 13716
Опубликована: Окт. 10, 2023
Steam
reforming
of
methanol
is
a
promising
approach
to
achieving
hydrogen
storage,
transportation,
and
in
situ
supply.
However,
this
technology
restricted
by
its
high
CO
selectivity
catalyst
deactivation.
In
study,
CuCr2O4-based
catalytic
oxygen
carriers
are
tailored
for
lattice
participating
low-temperature
reforming.
We
found
that
the
activation
originated
from
Cu–O–Cr
structure
intensification
highly
activated
induction.
Specifically,
can
be
at
temperatures
as
low
160
°C,
on
one
hand,
attributed
reinforcement
and,
other
owing
reactive
CuO4
tetrahedron
CuCr2O4
spinel.
Combined
with
XAS
Raman
results,
formation
demonstrated.
The
production
rate
an
applied
carrier
53.2%
higher
than
control
group
without
formulation.
Satisfactory
cyclic
stability
retained
after
50th
induction
supplement
cycle,
ascribing
strongly
intensifies
Cu–Cr2O3
interactions.
DFT
results
reveal
process
CH3OH
→
CH3O*
rate-determining
step.
Compared
Cu(111)
Cr2O3(110),
Cu(111)/Cr2O3(110)
surface
exhibits
lowest
potential
barrier
during
process,
promoting
Green Chemistry,
Год журнала:
2023,
Номер
25(23), С. 9603 - 9643
Опубликована: Янв. 1, 2023
CO
2
,
as
a
harmful
gas,
is
produced
by
factories
and
industries.
The
best
way
to
remove
it
use
natural
absorbents/adsorbents
such
polysaccharides
lignin-based
materials.
