Materials Today Catalysis,
Год журнала:
2024,
Номер
4, С. 100039 - 100039
Опубликована: Янв. 17, 2024
Electrocatalysis
plays
a
crucial
role
in
the
conversion
and
storage
of
renewable
energy,
offering
significant
potential
for
addressing
energy
crisis
environmental
concerns.
High-entropy
oxides
(HEOs),
class
emerging
functional
materials,
have
gained
increasing
attention
electrocatalysis
due
to
their
stable
crystal
structure,
exceptional
geometric
compatibility,
unique
electronic
balance
factors,
abundant
active
sites.
In
this
comprehensive
review,
we
present
recent
advancements
utilizing
HEOs
as
catalysts
various
energy-based
electrocatalytic
reactions.
We
begin
with
an
overview
that
includes
definitions,
fundamental
properties,
theoretical
investigations.
Subsequently,
describe
different
synthetic
methods
while
highlighting
two
newly-developed
techniques.
Furthermore,
extensively
discuss
developments
HEO-based
electrocatalysts
diverse
structures
such
rock-salt-type,
rutile-type,
spinel-type,
perovskite-type,
other
specially-structured
HEOs.
Special
emphasis
is
placed
on
designed
strategies
aimed
at
enhancing
performance
exploring
correlations
between
structure/
composition
performance.
Finally,
provide
concluding
remarks
along
perspectives
future
opportunities
exciting
field.
Chemical Reviews,
Год журнала:
2024,
Номер
124(8), С. 5119 - 5166
Опубликована: Апрель 15, 2024
Highly
efficient
coelectrolysis
of
CO2/H2O
into
syngas
(a
mixture
CO/H2),
and
subsequent
conversion
to
fuels
value-added
chemicals,
is
one
the
most
promising
alternatives
reach
corner
zero
carbon
strategy
renewable
electricity
storage.
This
research
reviews
current
state-of-the-art
advancements
in
solid
oxide
electrolyzer
cells
(SOECs)
produce
important
intermediate.
The
overviews
latest
on
operating
principles
thermodynamic
kinetic
models
are
included
for
both
oxygen-ion-
proton-conducting
SOECs.
advanced
materials
that
have
recently
been
developed
types
SOECs
summarized.
It
later
elucidates
necessity
possibility
regulating
ratios
(H2:CO)
via
changing
conditions,
including
temperature,
inlet
gas
composition,
flow
rate,
applied
voltage
or
current,
pressure.
In
addition,
sustainability
widespread
application
SOEC
technology
highlighted.
Finally,
challenges
future
directions
this
field
addressed.
review
will
appeal
scientists
working
renewable-energy-conversion
technologies,
CO2
utilization,
applications.
implementation
technologies
introduced
offers
solutions
climate
change
renewable-power-storage
problems.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(11)
Опубликована: Янв. 25, 2024
Abstract
Weak
adsorption
of
gas
reactants
and
strong
binding
intermediates
present
a
significant
challenge
for
most
transition
metal
oxides,
particularly
in
the
realm
CO
2
photoreduction.
Herein,
we
demonstrate
that
can
be
fine‐tuned
by
phase
engineering
oxide
catalysts.
An
oxygen
vacancy
mediated
topological
Ni‐Co
nanowires,
supported
on
hierarchical
graphene
aerogel
(GA),
is
observed
from
spinel
to
rock‐salt
phase.
Such
situ
empowers
catalyst
with
internal
electric
field
attainment
abundant
vacancies.
Among
series
catalysts,
transformed
spinel/rock‐salt
heterojunction
GA
stands
out
an
exceptional
photocatalytic
reduction
activity
selectivity,
yielding
impressive
production
rate
12.5
mmol
g
−1
h
high
selectivity
96.5
%.
This
remarkable
performance
result
robust
interfacial
coupling
between
two
phases
optimizes
electronic
structures
through
directional
charge
transfer
across
interfaces.
The
process
induces
more
Co
2+
octahedral
site,
which
effectively
enhance
Co‐O
covalency.
synergistic
effect
balances
surface
activation
molecules
desorption
reaction
intermediates,
thereby
lowering
energetic
barrier
rate‐limiting
step.
Materials Today Catalysis,
Год журнала:
2024,
Номер
4, С. 100039 - 100039
Опубликована: Янв. 17, 2024
Electrocatalysis
plays
a
crucial
role
in
the
conversion
and
storage
of
renewable
energy,
offering
significant
potential
for
addressing
energy
crisis
environmental
concerns.
High-entropy
oxides
(HEOs),
class
emerging
functional
materials,
have
gained
increasing
attention
electrocatalysis
due
to
their
stable
crystal
structure,
exceptional
geometric
compatibility,
unique
electronic
balance
factors,
abundant
active
sites.
In
this
comprehensive
review,
we
present
recent
advancements
utilizing
HEOs
as
catalysts
various
energy-based
electrocatalytic
reactions.
We
begin
with
an
overview
that
includes
definitions,
fundamental
properties,
theoretical
investigations.
Subsequently,
describe
different
synthetic
methods
while
highlighting
two
newly-developed
techniques.
Furthermore,
extensively
discuss
developments
HEO-based
electrocatalysts
diverse
structures
such
rock-salt-type,
rutile-type,
spinel-type,
perovskite-type,
other
specially-structured
HEOs.
Special
emphasis
is
placed
on
designed
strategies
aimed
at
enhancing
performance
exploring
correlations
between
structure/
composition
performance.
Finally,
provide
concluding
remarks
along
perspectives
future
opportunities
exciting
field.
