Inorganic Chemistry,
Год журнала:
2024,
Номер
63(52), С. 24844 - 24854
Опубликована: Дек. 16, 2024
Nanomaterials
are
vital
in
catalysis,
sensing,
energy
storage,
and
biomedicine
now
incorporate
multiprincipal
element
materials
to
meet
evolving
technological
demands.
However,
achieving
a
uniform
distribution
of
multiple
elements
these
nanomaterials
poses
significant
challenges.
In
this
study,
various
Cu–Ni
compositions
were
used
as
model
system
investigate
the
formation
bimetallic
nanoparticles
by
employing
computer
simulation
molecular
dynamics
methods
comparing
results
with
observations
from
solution-combustion-synthesized
same
compositions.
The
findings
reveal
successful
synthesis
12–18
nm
high
phase
homogeneity,
alongside
phase-segregated
predicted
simulations.
Based
on
comparison
experimental
computational
data,
possible
scenario
for
segregation
during
was
proposed.
It
includes
clustering
atoms
type
an
initial
solution
or
stage
gel
further
developing
combustion/cooling
stage.
research
concludes
that
early
stages,
including
particle
preformation,
significantly
influence
homogeneity
alloys.
This
study
contributes
understanding
nanomaterial
formation,
offering
insights
improved
alloy
enhanced
functionalities
advanced
applications.
Advanced Materials,
Год журнала:
2024,
Номер
36(27)
Опубликована: Апрель 23, 2024
Protonic
ceramic
fuel
cells
(PCFCs)
hold
potential
for
sustainable
energy
conversion,
yet
their
widespread
application
is
hindered
by
the
sluggish
kinetics
and
inferior
stability
of
cathode
materials.
Here,
a
facile
efficient
reverse
atom
capture
technique
developed
to
manipulate
surface
chemistry
PrBa
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.
Abstract
High‐entropy
materials
(HEMs)
have
recently
attracted
extensive
research
interest.
Featuring
unique
structural
characteristics
and
excellent
mechanical/chemical
properties,
HEMs
(especially
high‐entropy
alloys
oxides)
emerge
as
promising
electrode
for
electrochemical
energy
storage.
We
herein
present
a
critical
review
to
update
the
recent
progress
in
developing
new
electrodes
various
metal‐ion
batteries.
Their
design
principle
is
discussed
along
with
preparation,
characterization,
performance
materials.
The
current
state‐of‐the‐art
HEM
presented,
covering
good
capacity,
rate
long‐term
cycle
stability
ion
By
addressing
both
success
challenges
associated
development,
this
contributes
efforts
toward
achieving
higher
capacity
more
stable
Materials Futures,
Год журнала:
2024,
Номер
3(4), С. 042103 - 042103
Опубликована: Окт. 8, 2024
Abstract
High-entropy
oxides
(HEOs),
with
their
multi-principal-element
compositional
diversity,
have
emerged
as
promising
candidates
in
the
realm
of
energy
materials.
This
review
encapsulates
progress
harnessing
HEOs
for
conversion
and
storage
applications,
encompassing
solar
cells,
electrocatalysis,
photocatalysis,
lithium-ion
batteries,
solid
oxide
fuel
cells.
The
critical
role
theoretical
calculations
simulations
is
underscored,
highlighting
contribution
to
elucidating
material
stability,
deciphering
structure-activity
relationships,
enabling
performance
optimization.
These
computational
tools
been
instrumental
multi-scale
modeling,
high-throughput
screening,
integrating
artificial
intelligence
design.
Despite
promise,
challenges
such
fabrication
complexity,
cost,
hurdles
impede
broad
application
HEOs.
To
address
these,
this
delineates
future
research
perspectives.
include
innovation
cost-effective
synthesis
strategies,
employment
situ
characterization
micro-chemical
insights,
exploration
unique
physical
phenomena
refine
performance,
enhancement
models
precise
structure-performance
predictions.
calls
interdisciplinary
synergy,
fostering
a
collaborative
approach
between
materials
science,
chemistry,
physics,
related
disciplines.
Collectively,
these
efforts
are
poised
propel
towards
commercial
viability
new
technologies,
heralding
innovative
solutions
pressing
environmental
challenges.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(35), С. 23179 - 23201
Опубликована: Янв. 1, 2024
The
escalating
demand
for
energy
storage
and
catalysis
devices
in
the
realm
of
renewable
applications
has
witnessed
a
rapid
surge
recent
years,
with
expectations
continued
growth
foreseeable
future.
Journal of Electroanalytical Chemistry,
Год журнала:
2024,
Номер
961, С. 118191 - 118191
Опубликована: Март 22, 2024
Global
energy
consumption
increases
year
after
year,
causing
the
depletion
of
non-renewable
sources.
According
to
International
Energy
Agency
(IEA),
global
demand
for
electrical
is
expected
increase
by
3.3
%
in
2024.
Therefore,
developing
new
renewable
sources
urgent,
including
devices
storage
and
conversion,
particularly
those
based
on
electrochemical
reactions.
Water
splitting
a
clean
sustainable
technology
capable
facing
this
issue
producing
oxygen
hydrogen
from
water
electricity.
However,
an
related
slow
kinetics
evolution
reaction,
making
it
necessary
develop
electrocatalysts
with
high
performance.
To
meet
requirement,
work
deals,
first
time,
entropy
oxide
rock-salt
structure
synthesized
green
sol-gel
synthesis
using
red
seaweed
(Rhodophyta)
as
polymerizing
agent.
Sol-gel
allows
large-scale
production
nanomaterials
uniformity
dispersion
chemical
elements
involved.
The
literature,
which
discussed
these
oxides,
reveals
that
agents
harmful
environment
are
employed,
sodium
hydroxide,
acetic
acid,
hexadecyltrimethylammonium
bromide,
urea,
ammonium
hydroxide.
composition
(Mg0.2Ni0.2Co0.2Cu0.2Zn0.2)O.
As
electrocatalyst
exhibits
low
overpotential
(336
mV
vs.
RHE
at
10
mA
cm-2),
Tafel
slope
68
dec-1,
excellent
durability.
performance
prepared
superior
other
same
class
were
produced
transition
metal-based
precursors.
