Materials Today,
Год журнала:
2024,
Номер
79, С. 16 - 27
Опубликована: Авг. 10, 2024
The
commercialization
of
Ni-based
catalysts
in
CO2
dry
reforming
methane
(DRM)
suffers
from
their
quick
deactivation.
Here,
we
reveal
each
reaction
pathway
for
DRM
based
on
the
Ni
catalyst
composition
and
geometry
under
working
conditions,
through
one
platform
combining
situ
high
resolution
Cs
corrected
environmental
transmission
electron
microscopy
energy-loss
spectroscopy
coupled
with
mass
spectroscopy.
formation
Ni3C
has
been
found
to
inhibit
decomposition
CH4,
promote
onion-like
carbon
encapsulate
catalysts,
leading
deactivation
catalysts.
Designing
suitable
supports
or
promoters
keep
surface
structure
Ni-NiO
cycle
can
drive
simultaneously
amorphous
deposition-consumption
minimise
coke
formation.
This
research
is
not
only
developing
resistance
DRM,
but
also
significant
investigating
many
catalysis
challenges
both
engineering.
Catalysis Science & Technology,
Год журнала:
2024,
Номер
14(7), С. 1712 - 1729
Опубликована: Янв. 1, 2024
The
achievements
of
dry
reforming
methane
over
Ni-based
catalysts
are
presented
with
focus
on
the
modification
factors
to
enhance
sintering
and
coking
resistance,
elaborated
in
context
support,
promoter,
preparation.
Chemical Engineering Journal,
Год журнала:
2024,
Номер
491, С. 151668 - 151668
Опубликована: Апрель 26, 2024
Integrated
carbon
capture
and
utilisation
(ICCU)
is
an
emerging
technology
for
simultaneous
CO2
adsorption
conversion
into
value-added
products.
This
provides
a
more
sustainable
approach
compared
to
storage.
Dual-functional
materials
(DFMs)
that
couple
sorbents
(e.g.
CaO)
catalysts
Ni)
enable
direct
of
sorbed
reactions
like
dry
reforming
methane
(DRM).
However,
the
potential
interactions
between
sorbent
catalyst
components
within
DFMs
may
induce
distinct
mechanisms
individual
materials.
Elucidating
these
synergies
interfacial
phenomena
vital
guiding
rational
design
DFMs.
article
investigates
respective
roles
Ni/SiO2
sol–gel
synthesised
CaO
in
integrated
via
(ICCU-DRM)
using
decoupling
approach.
Through
decoupled
reactor
experiments,
it
found
activates
react
with
deposits
from
CH4
decomposition,
achieving
maximal
CO
H2
yields
43.41
mmol
g−1
46.78
as
well
87.2
%
at
650
°C.
Characterisation
shows
coke
would
encapsulate
Ni
nanoparticles
be
active
Boudouard
reaction,
indicating
sufficient
catalyst-sorbent
contact
necessary
spillover.
In-situ
DRIFTS
reveals
no
obvious
CH4-CaCO3
reaction
occurs,
chemisorption
on
enables
reverse
which
further
verified
by
DFT
calculations.
The
findings
elucidate
dependent
synergistic
CaO/CaCO3
ICCU-DRM,
highlight
importance
catalyst-adsorbent
optimising
dual-functional
The Innovation Materials,
Год журнала:
2024,
Номер
unknown, С. 100090 - 100090
Опубликована: Янв. 1, 2024
<p>Anthropogenic
climate
and
environmental
changes
increasingly
threaten
the
sustainability
of
life
on
Earth,
hindering
sustainable
development
human
societies.
These
detrimental
ecological
are
driven
by
activities
that
have
elevated
atmospheric
levels
greenhouse
gases
toxic
substances,
increased
inorganic
organic
pollutants
in
water
bodies,
led
to
accumulation
solid
waste
soils.
Over
next
two
three
decades,
impacts
change,
pollution,
soil
contamination
expected
intensify,
posing
increasing
risks
health
global
stability.
Considering
these
trends,
it
is
essential
implement
robust
mitigation
adaptation
strategies.
This
paper
analyzes
pollution
problems
from
perspectives
atmospheric,
water,
contamination.
It
summarizes
current
research
heterogeneous
catalysis
for
treating
gaseous,
liquid,
phases,
with
an
emphasis
key
challenges
applying
catalytic
conversion
technologies
cost-effective
industrial
settings.
Finally,
strategies
mitigating
via
discussed
material
flow,
energy
data
flow.
aims
offer
scientific
insights
enhance
future
practice
remediation.</p>
