Advanced Functional Materials,
Год журнала:
2022,
Номер
32(34)
Опубликована: Май 17, 2022
Abstract
Mn‐based
hexacyanoferrate
(Mn‐HCF)
cathodes
for
Na‐ion
batteries
usually
suffer
from
poor
reversibility
and
capacity
decay
resulting
unfavorable
phase
transitions
structural
degradation
during
cycling.
To
address
this
issue,
the
high‐entropy
concept
is
here
applied
to
Mn‐HCF
materials,
significantly
improving
sodium
storage
capabilities
of
system
via
a
solid‐solution
mechanism
with
minor
crystallographic
changes
upon
de‐/sodiation.
Complementary
structural,
electrochemical,
computational
characterization
methods
are
used
compare
behavior
high‐,
medium‐,
low‐entropy
multicomponent
Mn‐HCFs
resolving,
our
knowledge
first
time,
link
between
configurational
entropy/compositional
disorder
(entropy‐mediated
suppression
transitions,
etc.)
cycling
performance/stability
in
promising
class
next‐generation
cathode
materials.
High-entropy
nanoparticles
have
become
a
rapidly
growing
area
of
research
in
recent
years.
Because
their
multielemental
compositions
and
unique
high-entropy
mixing
states
(i.e.,
solid-solution)
that
can
lead
to
tunable
activity
enhanced
stability,
these
received
notable
attention
for
catalyst
design
exploration.
However,
this
strong
potential
is
also
accompanied
by
grand
challenges
originating
from
vast
compositional
space
complex
atomic
structure,
which
hinder
comprehensive
exploration
fundamental
understanding.
Through
multidisciplinary
view
synthesis,
characterization,
catalytic
applications,
high-throughput
screening,
data-driven
materials
discovery,
review
dedicated
discussing
the
important
progress
unveiling
critical
needs
future
development
catalysis,
energy,
sustainability
applications.
Advanced Functional Materials,
Год журнала:
2021,
Номер
31(47)
Опубликована: Авг. 26, 2021
Abstract
High‐entropy
alloys
(HEAs)
have
attracted
widespread
attention
in
electrocatalysis
due
to
their
unique
advantages
(adjustable
composition,
complex
surface,
high
tolerance,
etc.).
They
allow
for
the
formation
of
new
and
tailorable
active
sites
multiple
elements
adjacent
each
other,
interaction
can
be
tailored
by
rational
selection
element
configuration
composition.
However,
it
needs
further
explored
catalyst
design,
elements,
determination
sites.
This
review
article
focuses
on
important
progress
multi‐sites
HEAs.
The
classification
is
done
basis
catalytic
reaction,
including
hydrogen
evolution
oxygen
reduction
alcohol
oxidation
carbon
dioxide
nitrogen
reaction.
Based
experiments
theories,
a
more
in‐depth
exploration
activity
HEAs
will
conducted,
(the
special
role
catalysis)
effect.
provide
design
some
reactions,
adjust
compositions
improve
intrinsic
activity.
Furthermore,
remaining
challenges
future
directions
promising
research
fields
are
also
provided.
Angewandte Chemie International Edition,
Год журнала:
2021,
Номер
60(52), С. 26894 - 26903
Опубликована: Авг. 26, 2021
Abstract
The
formation
of
a
vast
number
different
multielement
active
sites
in
compositionally
complex
solid
solution
materials,
often
more
generally
termed
high‐entropy
alloys,
offers
new
and
unique
concepts
catalyst
design,
which
mitigate
existing
limitations
change
the
view
on
structure–activity
relations.
We
discuss
these
by
summarising
currently
fundamental
knowledge
critically
assess
chances
this
material
class,
also
highlighting
design
strategies.
A
roadmap
is
proposed,
illustrating
characteristic
could
be
exploited
using
strategy,
breakthroughs
might
possible
to
guide
future
research
highly
promising
class
for
(electro)catalysis.
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(41)
Опубликована: Авг. 25, 2022
The
introduction
of
high-entropy
into
Prussian
blue
analogues
(PBAs)
has
yet
to
attract
attention
in
the
field
lithium-sulfur
battery
materials.
Herein,
we
systematically
synthesize
a
library
PBAs
from
binary
by
facile
coprecipitation
method.
coordination
environment
is
explored
X-ray
absorption
fine
structure
spectroscopy,
which
together
with
elemental
mapping
confirm
successful
all
metals.
Importantly,
electrochemical
tests
demonstrate
that
PBA
can
serve
as
polysulfide
immobilizer
inhibit
shuttle
effect
and
catalyst
promote
polysulfides
conversion,
thereby
boosting
its
outstanding
performance.
Additionally,
variety
nanocubic
metal
oxides
senary
are
fabricated
using
sacrificial
precursors.
We
believe
wide
range
new
materials
obtained
our
pyrolysis
methodology
further
developments
research
on
systems
sulfur
hosts.
iScience,
Год журнала:
2021,
Номер
24(3), С. 102177 - 102177
Опубликована: Фев. 16, 2021
High-entropy
materials
(HEMs),
including
high-entropy
alloys
(HEAs),
oxides
(HEOs),
and
other
compounds,
have
gained
significant
interests
over
the
past
years.
These
unique
structures
with
coexistence
of
antisite
disordering
crystal
periodicity,
which
were
originally
investigated
as
structural
materials.
Recently,
they
emerged
for
energy-related
applications,
such
catalysis,
energy
storage,
etc.
In
this
work,
we
review
research
progress
applications
HEMs.
After
an
introduction
on
background,
theory,
syntheses
HEMs,
survey
their
electrocatalysis,
batteries,
others,
aiming
to
retrieve
correlations
between
performances.
end,
discussed
challenges
future
directions
developing
Abstract
High‐entropy
alloys
(HEAs)
are
expected
to
function
well
as
electrocatalytic
materials,
owing
their
widely
adjustable
composition
and
unique
physical
chemical
properties.
Recently,
HEA
catalysts
extensively
studied
in
the
field
of
electrocatalysis;
this
motivated
authors
investigate
relationship
between
structure
HEAs
performance.
In
review,
latest
advances
electrocatalysts
systematically
summarized,
with
special
focus
on
nitrogen
fixation,
carbon
cycle,
water
splitting,
fuel
cells;
addition,
by
combining
characterization
analysis
microstructures,
rational
design
strategies
for
optimizing
electrocatalysts,
including
controllable
preparation,
component
regulation,
strain
engineering,
defect
theoretical
prediction
proposed.
Moreover,
existing
issues
future
trends
predicted,
which
will
help
further
develop
these
high‐entropy
materials.
Energy & Environmental Science,
Год журнала:
2022,
Номер
15(6), С. 2200 - 2232
Опубликована: Янв. 1, 2022
This
review
rearranges
the
most
important
fundamentals
in
PCFCs
based
on
perovskite-type
oxides,
provides
recent
advances
rational
design
of
perovskite
materials,
and
proposes
some
perspectives
research
PCFCs.
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Март 17, 2023
High
entropy
oxides
(HEOs)
with
chemically
disordered
multi-cation
structure
attract
intensive
interest
as
negative
electrode
materials
for
battery
applications.
The
outstanding
electrochemical
performance
has
been
attributed
to
the
high-entropy
stabilization
and
so-called
'cocktail
effect'.
However,
configurational
of
HEO,
which
is
thermodynamically
only
metastable
at
room-temperature,
insufficient
drive
structural
reversibility
during
conversion-type
reaction,
effect'
not
explained
thus
far.
This
work
unveils
multi-cations
synergy
HEO
Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O
atomic
nanoscale
reaction
explains
more
electronegative
elements
form
an
electrochemically
inert
3-dimensional
metallic
nano-network
enabling
electron
transport.
inactive
cation
stabilizes
oxide
nanophase,
semi-coherent
phase
accommodates
Li+
ions.
self-assembled
nanostructure
enables
stable
cycling
micron-sized
particles,
bypasses
need
pre-modification
required
conventional
metal
in
demonstrates
elemental
diversity
key
optimizing
materials.
Chemical Society Reviews,
Год журнала:
2023,
Номер
52(23), С. 8319 - 8373
Опубликована: Янв. 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.
