Metals,
Journal Year:
2024,
Volume and Issue:
14(4), P. 384 - 384
Published: March 25, 2024
High-entropy
materials
(HEMs)
play
a
significant
role
in
the
electrocatalytic
oxygen
evolution
reaction
(OER)
due
to
their
unique
properties.
However,
there
are
still
challenges
preparation
of
HEMs
for
OER
catalysts.
In
this
study,
FeCoNiMnCr
catalyst
is
synthesized
first
time
using
ultrasonic
hydrothermal-sintering
technique
and
exhibits
excellent
performance
electrocatalysis.
There
an
optimal
hydrothermal
power
achieving
best
performance.
The
results
demonstrate
that
catalysts
prepared
through
sintering
(US-FeCoNiMnCr)
significantly
improved
compared
with
traditional
method.
US-FeCoNiMnCr
overpotential
228
mV
at
current
density
10
mA
cm−2
Tafel
slope
as
low
45.39
dec−1
alkaline
medium.
Moreover,
demonstrates
remarkable
stability
minimal
potential
increase
observed
even
after
48
h.
This
work
not
only
provides
valuable
insights
into
high-entropy
material
synthesis,
but
also
presents
powerful
electrocatalyst
water
electrolysis.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(30), P. 18832 - 18865
Published: Jan. 1, 2024
This
review
focuses
mainly
on
the
overall
facilitating
effect
of
heterostructures
OER
process.
The
fabrication
heterostructured
electrocatalysts
and
relationship
between
their
structures
electrocatalytic
properties
are
discussed.
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
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 19, 2024
Abstract
Considering
the
large
demand
for
electricity
in
era
of
artificial
intelligence
and
big
data,
there
is
an
urgent
need
to
explore
novel
energy
storage
media
with
higher
density
intelligent
temperature
self‐check
functions.
High‐entropy
(HE)
ceramic
capacitors
are
great
significance
because
their
excellent
efficiency
high
power
(
P
D
).
However,
contradiction
between
configurational
entropy
polarization
traditional
HE
systems
greatly
restrains
increase
density.
Herein,
effectively
solved
by
regulating
octahedral
tilt
cationic
displacement
ABO
3
‐type
perovskite
ceramics,
i.e.,
(1‐
x
)[0.6(Bi
0.47
Na
Yb
0.03
Tm
0.01
)TiO
‐0.4(Ba
0.5
Sr
]‐
Sr(Zr
Hf
)O
(BNYTT‐BST‐
SZH).
Combining
tape‐casting
process
cold
isostatic
pressing,
optimal
BNYTT‐BST‐0.06SZH
displays
a
recoverable
(10.46
J
cm
−3
)
at
685
kV
−1
(332.88
MW
More
importantly,
due
Tm/Yb
codoping,
abnormal
fluorescent
negative
thermal
expansion
real‐time
sensing
developed,
thus
application
fault
detection
warning
high‐voltage
transmission
line
conceptualized.
This
study
provides
effective
strategy
enhancing
energy‐storing
ceramics
offers
promising
material
overcoming
problems
insufficient
capacitor
runaway
terminal
communication.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 22, 2024
Abstract
Reconstruction
of
catalysts
is
now
well
recognized
as
a
common
phenomenon
in
electrocatalysis.
As
the
reconstructed
structure
may
promote
or
hamper
electrochemical
performance,
how
to
achieve
designed
active
surface
for
highly
enhanced
catalytic
activity
through
reconstruction
needs
be
carefully
investigated.
In
this
review,
genesis
and
effects
various
processes,
such
hydrogen
evolution
reaction
(HER),
oxygen
(OER),
carbon
dioxide
reduction
(CO
2
RR),
nitrate
(NO
3
RR)
are
first
described.
Then,
strategies
optimizing
reconstruction,
valence
states
control,
phase
retention,
engineering,
poisoning
prevention
comprehensively
discussed.
Finally,
general
rules
optimization
summarized
give
perspectives
future
study.
It
believed
that
review
shall
provide
deep
insights
into
electrocatalytic
mechanisms
guide
design
pre‐catalysts
with
improved
activity.
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
