ACS Materials Letters,
Journal Year:
2024,
Volume and Issue:
6(7), P. 2642 - 2659
Published: May 30, 2024
High-entropy
alloys
(HEAs)
contain
five
or
more
main
elements,
and
each
element
ranges
in
content
from
5%
to
35%.
Due
the
abundant
selectivity
of
excellent
structural
stability,
adjustable
active
centers,
HEAs
have
been
widely
used
electrocatalysis.
Designing
HEA
catalysts
at
atomic
scale
can
deeply
describe
their
complexity
accurately
reflect
relationship
between
structure
catalytic
performance.
In
this
Review,
design
HEA-based
electrocatalysts
is
introduced
it
evaluated
terms
activity,
selectivity,
efficiency.
Ingenuity
level
customize
composition
geometric
HEAs,
thereby
enhancing
intrinsic
activity
site,
creating
new
sites,
improving
operational
stability.
The
Review
provides
insights
into
electrocatalytic
properties
guidance
for
synthesis
advanced
viewpoint
fabrication.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(30), P. 20594 - 20603
Published: May 20, 2024
Heterophase
nanomaterials
have
sparked
significant
research
interest
in
catalysis
due
to
their
distinctive
properties
arising
from
synergistic
effects
of
different
components
and
the
formed
phase
boundary.
However,
challenges
persist
controlled
synthesis
heterophase
intermetallic
compounds
(IMCs),
primarily
lattice
mismatch
distinct
crystal
phases
difficulty
achieving
precise
control
transitions.
Herein,
orthorhombic/cubic
Ru2Ge3/RuGe
IMCs
with
engineered
boundary
architecture
are
synthesized
anchored
on
reduced
graphene
oxide.
The
exhibit
excellent
hydrogen
evolution
reaction
(HER)
performance
a
high
current
density
1000
mA
cm–2
at
low
overpotential
135
mV.
presence
boundaries
enhances
charge
transfer
improves
kinetics
water
dissociation
while
optimizing
processes
adsorption/desorption,
thus
boosting
HER
performance.
Moreover,
an
anion
exchange
membrane
electrolyzer
is
constructed
using
as
cathode
electrocatalyst,
which
achieves
voltage
1.73
V,
activity
remains
virtually
undiminished
over
500
h.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 1, 2024
While
high-entropy
alloys,
oxides,
and
hydroxides,
are
advanced
as
a
novel
frontier
in
electrocatalytic
oxygen
evolution,
their
inherent
activity
deficiency
poses
major
challenge.
To
achieve
the
unlimited
goal
to
tailor
structure-activity
relationship
multicomponent
systems,
entropy-driven
composition
engineering
presents
substantial
potential,
by
fabricating
anion-regulated
transition
metal
compounds
sophisticated
evolution
reaction
electrocatalysts.
Herein,
versatile
2D
phosphorus
trisulfide
is
developed
promising
adjustable
platform.
Leveraging
multiple
electron
couplings
d-p
orbital
hybridizations
induced
cocktail
effect,
exceptional
catalytic
disclosed
upon
van
der
Waals
material
(MnFeCoNiZn)PS
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
Small,
Journal Year:
2024,
Volume and Issue:
20(31)
Published: March 10, 2024
Abstract
An
emerging
carbothermal
shock
method
is
an
ultra‐convenient
strategy
for
synthesizing
high‐entropy
alloys
(HEAs),
in
which
the
intelligent
combination
of
carbon
support
and
HEAs
can
be
serve
as
a
decisive
factor
interpreting
trade‐off
relationship
between
conductive
gene
dielectric
gene.
However,
feedback
mechanism
ordering
degree
on
electromagnetic
(EM)
response
2–18
GHz
has
not
been
comprehensively
demystified.
Herein,
while
lignin‐based
fiber
paper
(L‐CFP)
support,
L‐CFP/FeCoNiCuZn‐X
with
prepared
by
method.
The
reflection
loss
−82.6
dB
thickness
1.31
mm
achieved
means
pointing
electron
enrichment
within
L‐CFP/FeCoNiCuZn
heterointerfaces
verified
theoretical
calculations.
Simultaneously,
low‐frequency
evolution
high‐intensity
broadband
EM
relies
“sacrificing”
construction
polymorphic
L‐CFP/semi‐disordered‐HEAs
heterointerfaces.
practicality
complex
environments
given
prominence
to
thermal
conductivity,
hydrophobicity,
electrocatalytic
property.
This
work
great
significance
insightful
analysis
application
wave
absorption.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(20), P. 12672 - 12706
Published: May 8, 2024
Since
their
introduction
in
2004,
high
entropy
alloys
(HEAs)
have
attracted
significant
attention
due
to
exceptional
mechanical
and
functional
properties.
Advances
our
understanding
of
atomic-scale
ordering
phase
formation
HEAs
facilitated
the
development
fabrication
techniques
for
synthesizing
nanostructured
HEAs.
These
materials
hold
immense
potential
applications
various
fields
including
automobile
industries,
aerospace
engineering,
microelectronics,
clean
energy,
where
they
serve
as
either
structural
or
materials.
In
this
comprehensive
Review,
we
conduct
an
in-depth
analysis
properties
HEAs,
with
a
particular
emphasis
on
roles
different
nanostructures
modulating
these
To
begin,
explore
intrinsic
extrinsic
factors
that
influence
stability
Subsequently,
delve
into
examination
electrocatalytic
exhibited
by
bulk
three-dimensional
(3D)
well
nanosized
form
zero-dimensional
(0D)
nanoparticles,
one-dimensional
(1D)
nanowires,
two-dimensional
(2D)
nanosheets.
Finally,
present
outlook
current
research
landscape,
highlighting
challenges
opportunities
associated
nanostructure
design
structure-property
relationships
Small,
Journal Year:
2024,
Volume and Issue:
20(43)
Published: June 27, 2024
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
Catalysts,
Journal Year:
2024,
Volume and Issue:
14(1), P. 57 - 57
Published: Jan. 12, 2024
An
oxygen
reduction
reaction
(ORR)
is
the
key
half
of
proton
exchange
membrane
fuel
cells
(PEMFCs),
and
highly
dependent
on
Pt-based
nanocrystals
as
core
electrocatalysts.
Despite
exceptional
ORR
activity
from
adjusting
electronic
structures
surface
or
near-surface
atoms,
several
serious
issues,
including
corrosion
carbon
supports,
preferential
leaching
active
metal
elements,
instability
low-coordinated
atoms
sintering/agglomeration
nanocrystals,
still
exist,
challenging
durability
developed
catalysts.
From
point
view
catalyst
structure
design,
in
this
review,
we
summarized
state-of-the-art
structural
regulation
strategies
for
improving
The
current
limitation
binary
catalysts
electrocatalysis
firstly
discussed,
detailed
are
further
classified
into
optimization
metal-doped
alloys,
core/shell
structures,
intermetallics
high-entropy
etc.
structure–performance
relationship
detailedly
explained,
especially
emphasizing
elimination
above
restrictions.
Finally,
existing
challenges
future
research
direction
presented,
aiming
at
practicing
PEMFC
devices
ultradurable
Small,
Journal Year:
2024,
Volume and Issue:
20(32)
Published: March 27, 2024
Abstract
Developing
high‐performance
electrocatalysts
for
alkaline
hydrogen
evolution
reaction
(HER)
is
crucial
producing
green
hydrogen,
yet
it
remains
challenging
due
to
the
sluggish
kinetics
in
environments.
Pt
located
near
peak
of
HER
volcano
plot,
owing
its
exceptional
performance
adsorption
and
desorption,
Rh
plays
an
important
role
H
2
O
dissociation.
Lanthanides
(Ln)
are
commonly
used
modulate
electronic
structure
materials
further
influence
adsorption/desorption
reactants,
intermediates,
products,
noble
metal‐Ln
alloys
recognized
as
effective
platforms
where
Ln
elements
regulate
catalytic
properties
metals.
Here
1.5
Tm
alloy
synthesized
using
sodium
vapor
reduction
method.
This
demonstrates
superior
activity,
being
4.4
6.6
times
more
than
Pt/C
Rh/C,
respectively.
Density
Functional
Theory
(DFT)
calculations
reveal
that
upshift
d‐band
center
charge
transfer
induced
by
alloying
promote
dissociation
O,
making
favorable
reaction,
both
kinetically
thermodynamically.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(19)
Published: March 14, 2024
Abstract
Designing
high
efficiency
platinum
(Pt)‐based
catalysts
for
methanol
oxidation
reaction
(MOR)
with
“non‐CO”
pathway
selectivity
is
strongly
desired
and
remains
a
grand
challenge.
Herein,
PtRuNiCoFeGaPbW
HEA
ultrathin
nanowires
(HEA‐8
UNWs)
are
synthesized,
featuring
unique
cascaded
p
–
d
orbital
hybridization
interaction
by
inducing
dual
‐block
metals
(Ga
Pb).
In
comparison
Pt/C,
HEA‐8
UNWs
exhibit
15.0‐
4.2‐times
promotion
of
specific
mass
activity
MOR.
More
importantly,
electrochemical
in
situ
FITR
spectroscopy
reveals
that
the
production/adsorption
CO
(CO
*
)
intermediate
effectively
avoided
on
UNWs,
leading
to
complete
Theoretical
calculations
demonstrate
optimized
electronic
structure
can
facilitates
lower
energy
barrier
