Synergistical effect of CoIn alloy and oxygen vacancies over Co-In-Zr ternary catalysts boosting CO2 hydrogenation to methanol
Xueyang Jiang,
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Xiaoshen Li,
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Shaohui Xiong
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et al.
Carbon Capture Science & Technology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 100376 - 100376
Published: Jan. 1, 2025
Language: Английский
In Situ Observations of CO2 Activation on the PdIn(111) Alloy Surface at Ambient Pressures
Ji Won Park,
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Siwoo Noh,
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Young Jae Kim
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et al.
The Journal of Physical Chemistry Letters,
Journal Year:
2025,
Volume and Issue:
unknown, P. 4131 - 4138
Published: April 17, 2025
The
CO2
activation
process
has
been
investigated
on
the
palladium-indium
(PdIn)
(111)
alloy
surface
using
ambient
pressure
scanning
tunneling
microscopy
(AP-STM)
and
synchrotron-based
X-ray
photoelectron
spectroscopy
(AP-XPS).
Pd
In
atoms
diffuse
onto
topmost
layer
after
annealing
at
840
K,
which
adopts
intermetallic
PdIn
geometries
in
an
ultrahigh
vacuum.
AP-STM
reveals
that
interfacial
Pd-InOx
nanostructures
are
created
by
dissociative
adsorption
under
CO2(g)
environments
even
300
K.
Synchrotron-based
AP-XPS
measurements
support
idea
observed
induces
InOx
segregation
PdIn(111)
dissociated
atomic
oxygen
from
CO2.
After
all,
gas
molecules
simultaneously
adsorb
oxygen-terminated
sites
of
nanoclusters
to
produce
carbonate
species.
Our
situ
observations
indicate
restructuring
metastable
may
provide
active
for
efficient
activation,
contributing
rational
catalyst
design
toward
sustainable
utilizations.
Language: Английский
Intermetallic Electrocatalysts for Small‐Molecule Fuel Oxidation
Qi Mai,
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Yaohua Mai,
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Yiwen Zhong
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et al.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 17, 2025
Abstract
Intermetallic
compounds
with
well‐ordered
crystal
structures
and
precise
stoichiometry
are
emerging
as
a
transformative
class
of
electrocatalysis.
Existing
reviews
have
primarily
focused
on
intermetallic
for
specific
electrocatalytic
reactions
or
their
synthesis
strategies,
while
comprehensive
perspective
how
ordered
contribute
to
performance
across
different
electrochemical
applications
that
share
similarity
remains
underexplored.
In
this
review,
the
recent
progress
is
examined
in
compounds,
particularly
focusing
structure–property‐performance
correlations
four
critical
small‐molecule
fuel
oxidation
reactions,
including
hydrogen
formic
acid
methanol
ethanol
reactions.
These
central
sustainable
fuel‐cell
technologies
due
high
theoretical
energy
densities,
relatively
benign
byproducts,
scalability
clean
production.
This
review
begins
by
highlighting
advantages
compound
nanocrystals
over
metal
alloys,
such
unique
structures,
exceptional
thermodynamic
stability,
enhanced
durability,
improved
intrinsic
activity,
optimized
distribution
active
sites,
scalability.
Subsequently,
these
comprehensively
discussed
detail.
concludes
an
outlook
future
directions
application
nanocrystals,
emphasizing
role
advancing
technologies.
Language: Английский
Fabricating Nano-Multi-Interface Al2O3-In/In2O3 by A Dual-Functional Interfacial Engineering Strategy for Boosting Photothermal Catalytic CO2 Hydrogenation to Methanol
Applied Catalysis B Environment and Energy,
Journal Year:
2025,
Volume and Issue:
unknown, P. 125479 - 125479
Published: May 1, 2025
Language: Английский
Hierarchical Carbon Nanocage-Enabled Electron Buffering to Indium Oxide for Efficient CO2 Hydrogenation to Methanol
Zidi Wang,
No information about this author
Xudong Dong,
No information about this author
Zixuan Sun
No information about this author
et al.
ACS Applied Materials & Interfaces,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 26, 2025
The
hydrogenation
of
CO2
to
methanol
over
In2O3-based
catalysts
is
highly
sensitive
the
concentration
surface
oxygen
vacancies
(Ov).
While
increasing
Ov
can
enhance
catalytic
performance,
it
also
increases
risk
over-reduction
during
hydrogenation,
leading
a
trade-off
between
activity
and
stability.
Here,
we
demonstrate
that
hierarchical
carbon
nanocages
(hCNCs)
act
as
effective
"electron
buffering
agents"
for
In2O3,
mitigating
this
thereby
enhancing
yield,
with
nitrogen
doping
hCNCs
further
amplifying
effect.
Detailed
investigations
reveal
donate
electrons
Ov-deficient
In2O3
promote
formation,
while
extracting
from
Ov-rich
In2O3-x,
preventing
metallic
In.
As
result,
supported
on
maintains
consistently
high
concentration,
both
This
work
highlights
promising
potential
in
stimulates
interest
their
exploitation
other
redox
processes.
Language: Английский