ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(14), P. 16599 - 16608
Published: July 9, 2024
Developing
a
host
that
enhances
active
selenium
utilization
and
mitigates
the
polyselenide
shuttle
effect
is
crucial
for
both
sodium–selenium
(Na–Se)
potassium–selenium
(K–Se)
storage
systems.
Herein,
biomass-derived
three-dimensional
nitrogen-doped
cross-linked
porous
carbon
(3D-N-CPC)
designed
as
Se
host.
The
high
specific
surface
area
of
3D-N-CPC
ensures
efficient
Se/Na2Se/K2Se.
abundant
micromesoporous
structures
can
not
only
serve
physical
barriers
storing
small
molecules
confining
polyselenides
but
also
effectively
alleviate
volume
expansion
during
cycling.
In
addition,
in
situ
N-doped
sites
improve
electrical
conductivity
accelerate
conversion
kinetics.
By
combining
these
advantages,
3D-N-CPC/Se
electrode
exhibits
reversible
capacity
393
mA
h
g–1
after
2000
cycles
at
2C
superior
rate
performance
328
10C
Na–Se
batteries.
Moreover,
demonstrates
batteries
across
wide
temperature
range
(−10
to
50
°C).
K–Se
batteries,
maintains
476
200
0.2C.
This
work
could
pave
way
development
conductive
matrix
with
structure
advanced
selenium-based
battery
Chemical Society Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
review
explores
the
latest
advancements
in
potassium
metal
batteries,
including
electrode
design,
interface
engineering,
and
electrolyte
optimization
to
suppress
dendrite
formation
enhance
cycling
stability.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(27), P. 35063 - 35073
Published: June 26, 2024
The
slow
redox
kinetics
of
lithium–sulfur
batteries
severely
limit
their
application,
and
sulfur
utilization
can
be
effectively
enhanced
by
designing
different
cathode
host
materials.
Herein,
we
report
the
hollow
porous
nanofiber
LaNi0.6Co0.4O3
as
a
bidirectional
material
for
batteries.
After
Co
is
substituted
into
LaNiO3,
oxygen
vacancies
are
generated
to
enhance
conductivity
enrich
active
sites
material,
electrochemical
reaction
rate
further
accelerated
synergistic
catalytic
ability
Ni
elements
in
B-site
site
LaNi0.6Co0.4O3.
As
illustrated
kinetic
test
results,
interconversion
lithium
polysulfides,
nucleation
Li2S
dissolution
were
significantly
enhanced,
indicating
that
battery
during
charging
discharging
process.
In
performance
test,
initial
discharge
specific
capacity
S/LaNi0.6Co0.4O3
was
1140.4
mAh
g–1
at
0.1
C,
it
able
release
584.2
5
C.
It
also
showed
excellent
cycling
long
cycle
with
single-cycle
degradation
only
0.08%.
Even
under
harsh
conditions
high
loaded
low
electrolyte
dosage,
still
delivers
capability.
Therefore,
this
study
provides
an
idea
future
development
high-activity
electrocatalysts
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(19), P. 7362 - 7371
Published: Jan. 1, 2024
Ultrasmall
high-entropy
perovskite
fluoride
nanoparticles
impregnated
in
carbon
nanofibers
are
prepared
by
electrospinning
and
pyrolysis.
The
unique
structure
prevents
the
conversion
reaction
shows
a
low-strain
intercalation
mechanism.
ACS Materials Au,
Journal Year:
2024,
Volume and Issue:
4(6), P. 547 - 556
Published: Sept. 29, 2024
High-entropy
alloys
(HEAs)
have
become
pivotal
materials
in
the
field
of
catalysis,
offering
unique
advantages
due
to
their
diverse
elemental
compositions
and
complex
atomic
structures.
Recent
advances
computational
techniques,
particularly
density
functional
theory
(DFT)
machine
learning
(ML),
significantly
enhanced
our
understanding
design
HEAs
for
use
catalysis.
These
innovative
atomistic
simulations
shed
light
on
properties
HEAs,
enabling
discovery
optimization
catalysis
solid-solution
This
Perspective
discusses
recent
studies
that
illustrate
progress
It
offers
an
overview
properties,
constraints,
prospects
emphasizing
roles
enhance
catalytic
activity
selectivity.
The
discussion
underscores
capabilities
as
multifunctional
catalysts
with
stable
presented
insights
aim
inspire
future
experimental
efforts
address
challenges
fine-tuning
improved
performance.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 5, 2025
Abstract
Potassium‐based
batteries,
including
potassium‐ion
(PIBs)
and
potassium
metal
batteries
(PMBs),
are
gaining
attention
as
alternatives
to
lithium‐ion
(LIBs).
However,
potassium's
large
ionic
radius
(1.38
Å)
reduces
charge
density,
weakens
solvation,
increases
energy
barriers
for
K
+
diffusion,
leading
slower
reaction
kinetics,
thicker
solid
electrolyte
interphase
(SEI)
layers,
dendrite
formation.
To
address
these
challenges,
a
novel
single‐atom
Fe‐N
4
dipole–dipole
coupling
(SA.Fe)
is
proposed.
The
unique
coordination
highly
conductive
Ketjen
black
(KB)
substrate
establish
rapid
horizontal
electron
transfer
network,
enhancing
electrode
interface
reactions.
Moreover,
Fe‐N‐C
generates
short‐range
polar
electric
field,
improving
affinity
diffusion.
This
coherent
effectively
regulates
migration,
significantly
kinetics
lowering
diffusion
barriers.
SA.Fe
anode
delivers
high
reversible
capacities
(446.3
mAh
g
−1
)
exceptional
durability
(10
000
cycles
at
2.0
A
in
PIBs,
alongside
remarkable
stability
(600
0.5
mA
cm
−2
fast
(K
metal)
deposition
without
formation
PMBs.
study
highlights
the
potential
of
dipole
efficient
storage
dendrite‐free
offering
promising
pathway
next‐generation
potassium‐based
systems.
