Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
137(2)
Published: Aug. 29, 2024
Abstract
Investigating
the
formation
and
transformation
mechanisms
of
spiral‐concave
crystals
holds
significant
potential
for
advancing
innovative
material
design
comprehension.
We
examined
kinetics‐controlled
nucleation
growth
Prussian
Blue
with
spiral
concave
structures,
constructed
a
detailed
crystal
phase
diagram.
The
hexacyanoferrate
(SC‐HCF)
crystals,
characterized
by
high‐density
surface
steps
low
stress‐strain
architecture,
exhibit
enhanced
activity
due
to
their
facile
interaction
reactants.
Notably,
coordination
environment
SC‐HCF
can
be
precisely
modulated
introduction
diverse
metals.
Utilizing
X‐ray
absorption
fine
structure
spectroscopy
in
situ
ultraviolet‐visible
spectroscopy,
we
elucidated
mechanism
Co‐HCF
facilitated
oriented
adsorption‐ion
exchange
(OA‐IE)
process.
Both
experimental
data,
density
functional
theory
confirm
that
possesses
an
optimized
energy
band
structure,
capable
adjusting
local
electronic
enhancing
performance
oxygen
evolution
reaction.
This
work
not
only
elucidates
regulation
rich
HCF,
but
also
offers
novel
perspective
constructing
nanocrystals
intricate
structures.
AIChE Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 27, 2025
Abstract
High‐entropy
oxide
aerogels
(HEOs),
combining
the
advantages
of
polymetallic
oxides
and
aerogels,
are
novel
materials
with
great
prospect
for
catalytic
applications.
However,
preparation
single‐phase
HEOs
remains
a
challenge.
Herein,
we
report
general
strategy
ultralight
3D
porous
by
gelation
high‐temperature
calcination
process.
The
resulting
CuFeCoAgPdO
x
has
structural
morphological
HEO
an
aerogel
exhibits
excellent
selectivity
(100%),
full
conversion
(>99%
yield)
in
selective
hydrogenation
4‐nitrostyrene.
In
situ
Fourier
transform
infrared
spectroscopy
(FT‐IR)
gas
chromatography
confirm
that
synergistic
effect
can
preferentially
reduce
NO
2
group
rather
than
CC
bonds
mechanism
were
revealed.
This
study
provides
new
idea
design
efficient
nitroaromatic
catalysts.
Angewandte Chemie International Edition,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 10, 2025
High-entropy
materials
are
poised
to
revolutionize
science
and
industrial
applications
due
their
design
flexibility,
peculiar
performance,
broad
applicability.
In
this
study,
we
present
a
proof-of-concept
high-entropy
engineered
nanocarbon
(HENC)
co-doped
with
five
nonmetal
elements
(B,
F,
P,
S,
N),
synthesized
via
in
situ
polymerization
modification
of
ZIF-8
followed
by
pyrolysis.
The
HENC
exhibits
outstanding
performance
as
electrocatalyst
for
the
oxygen
reduction
reaction
(ORR),
activity
on
par
benchmark
Pt/C
electrocatalysts
superior
cyclic
stability.
Simulations
all-site
calculations
reveal
that
synergistic
effects
abundant
heteroatoms
increased
system
entropy
facilitate
formation
*O2
species,
N,
S
acting
key
active
elements,
while
co-doping
B
F
further
enhances
Notably,
HENCs
have
been
validated
cathode
catalysts
zinc-air
batteries,
achieving
an
impressive
peak
power
density
604
mW
cm-2
demonstrating
long-term
stability
over
16-day
period,
outpacing
commercial
catalyst
(542
cm-2).
This
work
not
only
enriches
concept
high
advances
understanding
but
also
opens
new
avenue
development
high-performance
low-cost
catalysts.
Angewandte Chemie,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 10, 2025
Abstract
High‐entropy
materials
are
poised
to
revolutionize
science
and
industrial
applications
due
their
design
flexibility,
peculiar
performance,
broad
applicability.
In
this
study,
we
present
a
proof‐of‐concept
high‐entropy
engineered
nanocarbon
(HENC)
co‐doped
with
five
nonmetal
elements
(B,
F,
P,
S,
N),
synthesized
via
in
situ
polymerization
modification
of
ZIF‐8
followed
by
pyrolysis.
The
HENC
exhibits
outstanding
performance
as
electrocatalyst
for
the
oxygen
reduction
reaction
(ORR),
activity
on
par
benchmark
Pt/C
electrocatalysts
superior
cyclic
stability.
Simulations
all‐site
calculations
reveal
that
synergistic
effects
abundant
heteroatoms
increased
system
entropy
facilitate
formation
*O
2
species,
N,
S
acting
key
active
elements,
while
co‐doping
B
F
further
enhances
Notably,
HENCs
have
been
validated
cathode
catalysts
zinc–air
batteries,
achieving
an
impressive
peak
power
density
604
mW
cm
−2
demonstrating
long‐term
stability
over
16‐day
period,
outpacing
commercial
catalyst
(542
).
This
work
not
only
enriches
concept
high
advances
understanding
but
also
opens
new
avenue
development
high‐performance
low‐cost
catalysts.
Green Energy & Environment,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 1, 2024
High-entropy
materials
(HEMs)
have
managed
to
make
their
mark
in
the
field
of
electrocatalysis.
The
flexibly
adjustable
component,
unique
configuration
and
proprietary
core
effect
endow
HEMs
with
excellent
functional
feature,
superior
stability
fast
reaction
kinetics.
Recently,
relationship
between
compositions
structures
high-entropy
catalysts
electrocatalytic
performances
has
been
extensively
investigated.
Based
on
this
motivation,
we
comprehensively
systematically
summarize
HEMs,
outline
intrinsic
properties
electrochemical
advantages,
generalize
current
state-of-the-art
synthetic
methods,
analyze
active
centers
conjunction
characterization
techniques,
utilize
theoretical
research
conduct
a
high-throughput
screening
targeted
catalyst
exploration
mechanisms,
importantly,
focus
specially
applications
propose
strategies
for
regulating
electronic
structure
accelerate
kinetics,
including
morphological
control,
defect
engineering,
element
regulation,
strain
engineering
so
forth.
Finally,
provide
our
personal
views
challenges
further
technical
improvements
catalysts.
This
work
can
valuable
guidance
future
electrocatalysts.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
64(2)
Published: Aug. 29, 2024
Abstract
Investigating
the
formation
and
transformation
mechanisms
of
spiral‐concave
crystals
holds
significant
potential
for
advancing
innovative
material
design
comprehension.
We
examined
kinetics‐controlled
nucleation
growth
Prussian
Blue
with
spiral
concave
structures,
constructed
a
detailed
crystal
phase
diagram.
The
hexacyanoferrate
(SC‐HCF)
crystals,
characterized
by
high‐density
surface
steps
low
stress‐strain
architecture,
exhibit
enhanced
activity
due
to
their
facile
interaction
reactants.
Notably,
coordination
environment
SC‐HCF
can
be
precisely
modulated
introduction
diverse
metals.
Utilizing
X‐ray
absorption
fine
structure
spectroscopy
in
situ
ultraviolet‐visible
spectroscopy,
we
elucidated
mechanism
Co‐HCF
facilitated
oriented
adsorption‐ion
exchange
(OA‐IE)
process.
Both
experimental
data,
density
functional
theory
confirm
that
possesses
an
optimized
energy
band
structure,
capable
adjusting
local
electronic
enhancing
performance
oxygen
evolution
reaction.
This
work
not
only
elucidates
regulation
rich
HCF,
but
also
offers
novel
perspective
constructing
nanocrystals
intricate
structures.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(22), P. 28613 - 28624
Published: May 24, 2024
Constructing
pertinent
nanoarchitecture
with
abundant
exposed
active
sites
is
a
valid
strategy
for
boosting
photocatalytic
hydrogen
generation.
However,
the
controllable
approach
of
an
ideal
architecture
comprising
vertically
standing
transition
metal
chalcogenides
(TMDs)
nanosheets
on
3D
graphene
network
remains
challenging
despite
potential
efficient
production.
In
this
study,
we
fabricated
edge-rich
structuring
photocatalysts
involving
grown
TMDs
porous
framework
(referred
to
as
Gr).
2D
(MoS2
and
WS2)/3D
Gr
heterostructures
were
produced
by
location-specific
photon-pen
writing
metal–organic
chemical
vapor
deposition
maximum
edge
site
exposure
enabling
reactivity.
Vertically
aligned
Mo(W)S2/3D
exhibited
distinctly
boosted
production
because
caused
synergetic
impacts
associated
large
specific
surface
area
improved
density
in
Mo(W)S2.
The
heterostructure
corroborates
optimum
charge
transport
pathway
rapidly
separate
photogenerated
electron–hole
pairs,
allowing
more
electrons
contribute
generation
reaction.
Consequently,
size-tailored
showed
superior
rate
6.51
mmol
g–1
h–1
MoS2/3D
7.26
WS2/3D
graphene,
respectively,
which
3.59
3.76
times
greater
than
that
MoS2
WS2
samples.
This
study
offers
promising
path
vertical
TMDs/graphene
applications.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(24), P. 14268 - 14301
Published: Jan. 1, 2024
This
review
gives
a
global
map
of
HEMs
on
the
basis
metal
entities
from
noble
metals
to
cheap
transition
and
provide
meaningful
guidance
researchers
for
exploration
advanced
water
splitting.
