Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 22, 2024
Understanding
the
effect
of
elements'
oxygen
affinity
is
essential
for
comprehending
high-entropy
alloys'
(HEAs)
complete
properties.
However,
origin
HEAs'
oxygen-containing
structure
and
stability
remains
poorly
understood,
primarily
due
to
their
diverse
components,
hindering
synthesis
analysis.
Herein,
O-doping
HEAs
(HEA-O)
have
demonstrated
outstanding
performance
in
electrolyzed
water
Zinc-air
batteries
which
can
be
reassembled
after
being
stable
more
than
1600
h
when
zinc
consumption
over.
The
experiment
DFT
simulation
demonstrate
that
Cr
with
strong
introduce
into
system
HEAs.
Consequently,
interstitial
oxygens
act
as
electronic
buffers
making
binding
energy
other
metal
elements
move
a
higher
level.
Additionally,
lowers
d-band
center
promoting
electrochemical
activity
increasing
vacancy
formation
energies
active
sites
leading
super
stability.
study
provides
significant
insights
design
comprehension
oxygen-doped
Abstract
CO
2
conversion
is
an
anticipated
route
to
resolve
the
energy
crisis
and
environmental
pollution,
in
which
electrocatalysis
one
of
technologies
closest
industrialization.
Alloy
catalysts
are
promising
candidates
for
electrocatalysis,
high
tenability
electronic
structures
surface
physical
chemical
properties
allows
alloy
catalytic
activity
selectivity
electrocatalytic
reduction.
Herein,
recent
advances
reduction
have
been
systematically
summarized,
with
insight
into
structure
active
center,
performance,
mechanism,
uncover
key
their
performance.
The
mainly
classified
as
binary
multi‐metallic
alloys
(medium
entropy
alloy)
based
on
components
mixed
configuration
entropy,
relationship
among
mechanism
has
fully
discussed
inspire
rational
design
catalysts.
Finally,
current
challenges
future
perspectives
presented
propose
dilemma
development
direction
This
review
provides
overview
about
progress
present
a
guideline
research
work
relevant
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(32)
Опубликована: Апрель 25, 2023
Abstract
Electrochemical
carbon
dioxide
(CO
2
)
conversion
technologies
have
become
new
favorites
for
addressing
environmental
and
energy
issues,
especially
with
direct
electrocatalytic
reduction
of
CO
(ECO
RR)
alkali
metal‐CO
(M–CO
batteries
as
representatives.
They
are
poised
to
create
economic
drivers
while
also
paving
the
way
a
cleaner
more
sustainable
future
humanity.
Although
still
far
from
practical
application,
ECO
RR
has
been
intensively
investigated
over
last
few
years,
some
achievements.
In
stark
contrast,
M–CO
batteries,
aqueous
hybrid
offer
potential
combine
storage
into
an
integrated
system,
but
their
research
is
in
early
stages.
This
article
gives
insightful
review,
comparison,
analysis
recent
advances
illustrating
similarities
differences,
aiming
advance
development
innovation.
Considering
crucial
role
well‐designed
functional
materials
facilitating
special
attention
paid
rational
design
strategies
components,
such
electrodes/catalysts,
electrolytes,
membranes/separators,
at
industrial
level
impact
on
conversion.
Moreover,
perspectives
suggestions
presented
facilitate
applications.
Chemical Science,
Год журнала:
2024,
Номер
15(23), С. 8664 - 8722
Опубликована: Янв. 1, 2024
High-entropy
alloys
hold
significant
promise
as
electrode
materials,
even
from
industrial
aspect.
This
potential
arises
their
ability
to
optimize
electronic
structures
and
reaction
sites,
stemming
complex
adjustable
composition.
Abstract
Electrocatalysis
is
a
crucial
method
for
achieving
global
carbon
neutrality,
serving
as
an
essential
means
of
energy
conversion,
and
electrocatalyst
in
the
process
electrocatalysis.
Because
abundant
active
sites,
multi‐component
synergistic
effect
high‐entropy
materials
has
wide
application
prospect
field
Moreover,
due
to
special
structure
materials,
it
possible
obtain
almost
continuous
adsorption
distribution
by
regulating
composition,
which
attracted
extensive
attention
researchers.
This
paper
reviews
properties
types
including
alloys
compounds.
The
synthesis
strategies
are
systematically
introduced,
solid
phase
synthesis,
liquid‐phase
gas‐phase
classified
summarized.
electrocatalysis
summarized,
promotion
strategy
various
catalytic
reaction
processes
Finally,
current
progress
problems
encountered,
future
development
direction
reviewed.
It
emphasized
that
high
flux
density
functional
theory
calculation
guiding
catalyst
design
will
be
great
significance
High-entropy
alloys
(HEAs)
have
attracted
significant
attention
for
electrocatalytic
energy
conversion
by
virtue
of
their
promisingly
high
efficiency,
stability,
and
low
cost.
Recently,
encouraging
progress
has
been
made
in
tuning
the
structure
composition
HEAs
used
electrolyzers
fuel
cells.
However,
understanding
on
synthetic
methods
structure-property-performance
relationship
well-defined
nanostructures
is
still
inadequate.
To
gain
insight
into
future
research
directions
electrocatalysis,
this
paper,
commonly
to
obtain
(0D
nanoparticles,
1D
nanowires,
2D
nanosheets/nanoplates,
3D
nanoporous
structures,
other
three-dimensional
morphologies)
are
first
summarized.
Then,
authors
discuss
application
several
typical
reactions,
including
hydrogen
evolution
reaction,
oxygen
reduction
alcohol
oxidation
carbon
dioxide
nitrogen
formic
acid
reaction.
Finally,
a
practical
perspective
nanostructured
electrocatalysts
provided.
