Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 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
Chemical Society Reviews,
Journal Year:
2023,
Volume and Issue:
52(23), P. 8319 - 8373
Published: Jan. 1, 2023
In
this
review,
we
provide
a
comprehensive
summary
of
recent
advances
in
the
synthesis
strategies,
design
principles,
and
characterization
technologies
high
entropy
alloys,
their
applications
various
electrocatalytic
conversion
reactions.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(22), P. 12507 - 12593
Published: Nov. 1, 2023
Electrocatalysis
underpins
the
renewable
electrochemical
conversions
for
sustainability,
which
further
replies
on
metallic
nanocrystals
as
vital
electrocatalysts.
Intermetallic
have
been
known
to
show
distinct
properties
compared
their
disordered
counterparts,
and
long
explored
functional
improvements.
Tremendous
progresses
made
in
past
few
years,
with
notable
trend
of
more
precise
engineering
down
an
atomic
level
investigation
transferring
into
practical
membrane
electrode
assembly
(MEA),
motivates
this
timely
review.
After
addressing
basic
thermodynamic
kinetic
fundamentals,
we
discuss
classic
latest
synthetic
strategies
that
enable
not
only
formation
intermetallic
phase
but
also
rational
control
other
catalysis-determinant
structural
parameters,
such
size
morphology.
We
demonstrate
emerging
nanomaterials
potentially
advancement
energy
electrocatalysis.
Then,
state-of-the-art
characterizations
representative
electrocatalysts
emphasis
oxygen
reduction
reaction
evaluated
a
MEA
setup.
summarize
review
by
laying
out
existing
challenges
offering
perspective
future
research
directions
toward
practicing
conversions.
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(21), P. 21893 - 21904
Published: Oct. 28, 2023
Uncontrolled
dendrite
growth
and
water-related
side
reactions
in
mild
electrolytes
are
the
main
causes
of
poor
cycling
stability
zinc
anodes,
resulting
deterioration
aqueous
zinc-based
batteries.
Herein,
a
multifunctional
fluorapatite
(Ca5(PO4)3F)
aerogel
(FAG)
interface
layer
is
proposed
to
realize
highly
stable
anodes
via
integrated
regulation
Zn2+
migration
kinetics
Zn
(002)
orientation
deposition.
Owing
well-defined
nanochannels
rich
adsorption
sites
from
ion
exchange
between
Ca2+
Zn2+,
FAG
could
significantly
accelerate
effectively
homogenize
flux
nucleation
sites,
thus
promoting
rapid
uniform
at
electrode/electrolyte
interface.
Additionally,
during
process,
F
atoms
promote
situ
generation
ZnF2,
which
facilitates
manipulation
preferred
deposition,
efficiently
suppressing
by
combining
with
above
synergistic
effects.
Consequently,
FAG-modified
anode
displays
cycle
life
over
4000
h
1
mA
cm-2
exhibits
reversible
plating/stripping
behavior.
Meanwhile,
Zn||MnO2
full
cells
exhibit
improved
2000
cycles
compared
that
bare
Zn,
highlighting
virtues
protective
for
anodes.
Our
work
brings
insight
stabilize
power
commercial
applications
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(12), P. 6021 - 6041
Published: Jan. 1, 2024
This
review
provides
a
comprehensive
overview
of
the
recent
advancements
in
controllable
synthesis
high-entropy
alloys,
ranging
from
approach
and
significance
composition,
morphology,
structure,
surface/interface
engineering.
Science Advances,
Journal Year:
2024,
Volume and Issue:
10(23)
Published: June 5, 2024
Alloying
has
proven
power
to
upgrade
metallic
electrocatalysts,
while
the
traditional
alloys
encounter
limitation
for
optimizing
electronic
structures
of
surface
sites
in
a
continuous
manner.
High-entropy
(HEAs)
overcome
this
by
manageably
tuning
adsorption/desorption
energies
reaction
intermediates.
Recently,
marriage
nanotechnology
and
HEAs
made
considerable
progresses
renewable
energy
technologies,
showing
two
important
trends
size
diminishment
multidimensionality.
This
review
is
dedicated
summarizing
recent
advances
that
are
rationally
designed
electrocatalysis.
We
first
explain
advantages
as
electrocatalysts
from
three
aspects:
high
entropy,
nanometer,
multidimension.
Then,
several
structural
regulation
methods
proposed
promote
electrocatalysis
HEAs,
involving
thermodynamically
nonequilibrium
synthesis,
regulating
(sub-)nanosize
anisotropic
morphologies,
well
engineering
atomic
ordering.
The
general
relationship
between
electrocatalytic
properties
further
discussed.
Finally,
we
outline
remaining
challenges
field,
aiming
inspire
more
sophisticated
HEA-based
nanocatalysts.
ACS Materials Letters,
Journal Year:
2024,
Volume and Issue:
6(3), P. 748 - 755
Published: Jan. 29, 2024
The
development
of
renewable
energy
conversion
devices
heavily
relies
on
the
design
high-performance
electrocatalysts
for
water
electrolysis
systems.
In
this
study,
a
Se-doped
RuO2
aerogel
(Se-RuO2
aerogel)
with
abundant
defects
is
prepared
as
an
excellent
oxygen
evolution
reaction
(OER)
electrocatalyst
in
acidic
media.
Se-RuO2
exhibits
remarkably
low
overpotential
166
mV
at
current
density
10
mA
cm–2
and
long-term
stability
up
to
48
h.
Concurrently,
detailed
situ
experiments
demonstrate
that
can
maintain
during
OER
process,
their
path
follows
more
stable
adsorption
mechanism.
Therefore,
it
operate
100
h
when
assembled
anode
catalyst
polymer
electrolyte
membrane
(PEM)
electrolyzer.
This
work
provides
new
vision
based
defect
engineering.
Small,
Journal Year:
2024,
Volume and Issue:
20(26)
Published: Jan. 17, 2024
The
unique
properties
of
high
entropy
alloy
(HEA)
catalysts,
particularly
their
severe
lattice
distortion
and
the
synergistic
effect
multiple
components,
endow
them
with
exceptional
multifunctional
catalytic
performance.
Herein,
it
is
revealed
for
first
time,
that
ultrasmall
PtRhNiFeCu
HEA
nanoparticles
catalyst
shows
outstanding
activity
both
hydrogen
evolution
reaction
(HER)
oxygen
reduction
(ORR).
exhibits
an
impressively
low
overpotential
13
mV
at
10
mA
cm
