Advanced Sustainable Systems,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 29, 2024
Abstract
Rechargeable
Zn‐air
batteries
(ZABs)
have
attracted
widespread
attention
due
to
their
advantages,
such
as
high
energy
density,
low
price,
and
environmental
friendliness.
However,
the
sluggish
kinetics
of
ORR/OER
greatly
prevent
practical
application
rechargeable
ZABs.
In
recent
years,
efficient,
durable,
cost‐effective
bifunctional
catalysts
are
developed
accelerate
enhance
performance
This
review
provides
a
systematic
overview
ZABs
describes
standards
oxygen
electrocatalysts.
The
latest
research
progress
in
development
non‐noble
metal‐based
nano‐metallic
electrocatalysts
for
air
electrode
is
systematically
summarized,
including
classification,
design,
synthesis
methods,
active
site
structures,
mechanism.
Finally,
challenges
faced
by
probable
solutions
proposed.
will
provide
comprehensive
guidance
efficient
electrocatalyst
future.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 25, 2025
Abstract
The
rational
design
of
abundant
and
efficient
active
sites
for
lithium‐sulfur
electrocatalysis
remains
a
long‐standing
challenge,
wherein
the
optimization
catalyst
activity
by
manipulating
their
sizes
has
stimulated
extensive
exploration.
Herein,
fine‐grain
strengthening
strategy
is
proposed
vanadium‐nitrogen‐carbon
(VNC)
comprising
vanadium
(V)‐based
units,
throughout
modulating
size
surface
energy
via
salt‐template
recrystallization.
recrystallization
frequency
dictated
to
precisely
tune
effect.
Through
rigorous
procedure
5‐time
recrystallization,
V‐based
units
realize
reduction
from
209
99
Å,
increase
0.16
0.32
eV
Å
−2
,
along
with
specific
area
adjustment
41.5
206.3
m
2
g
−1
.
Accordingly,
effect
effectively
activates
in
i)
enhancing
sulfur
species
adsorption
propelling
Li
S
nucleation/decomposition
reaction
kinetics;
ii)
guiding
high‐flux
uniform
lithium‐ions
thus
promoting
lithium
plating/stripping
behaviors.
Consequently,
battery
demonstrates
an
initial
discharge
capacity
1236.4
mA
h
at
0.2
C.
Even
after
600
cycles
2.0
C,
cycle‐to‐cycle
attenuation
merely
0.048%.
Furthermore,
pouch
cell
strengthened
VNC
can
proceed
stable
cycling
operation
1.0
ensuring
reliable
consistent
power
supply
electronic
gadgets.
ACS Applied Nano Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 23, 2024
Transition
metal
phosphides
(TMPs)
have
drawn
widespread
attention
as
promising
electrocatalysts
due
to
their
special
electronic
structure,
good
electrochemical
activity,
low
cost,
and
high
abundance.
Although
a
great
deal
of
effort
has
been
expended
in
the
pursuit
TMPs,
majority
synthesis
processes
are
complex
hazardous
use
flammable
toxic
phosphorus
sources.
Herein,
we
propose
nontoxic
scalable
synthetic
strategy
for
NiCoP@NC
by
using
green
cheap
diethylenetriaminepentakis
(methylphosphonic
acid)
(DTPMP)
source.
DTPMP
can
also
act
chelating
agent
displays
strong
coordination
ability
with
ions,
thereby
reducing
particle
size
forming
nanoparticles.
The
exhibits
outstanding
stability
electrocatalytic
activity
both
hydrogen
evolution
reaction
(HER)
oxygen
(OER).
Furthermore,
water
electrolysis
performance
is
measured
anode
cathode,
which
delivers
cell
voltage
1.73
V
at
10
mA·cm–2
operate
stably
24
h.
This
work
not
only
constructs
efficient
bifunctional
catalysts,
but
broadens
method
nanosized
paving
way
further
large-scale
practical
applications.
Nanoscale,
Год журнала:
2024,
Номер
16(46), С. 21294 - 21308
Опубликована: Янв. 1, 2024
This
review
focuses
on
nanocatalysis
in
cathode
pre-lithiation,
summarizes
recent
progress
versatile
nanocatalysts
for
efficient
pre-lithiation
additive
decomposition
and
highlights
future
challenges
directions
commercialization.
