Advanced Sustainable Systems,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 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.
Zeolitic
imidazolate
framework
(ZIF)-derived
metal–nitrogen
carbon
(M–N–C)
materials
are
considered
as
promising
electrocatalysts
for
oxygen
reduction
reaction
(ORR)
and
evolution
(OER)
applied
in
rechargeable
zinc–air
batteries
(ZABs).
However,
due
to
their
unsatisfied
conductivity
aggregation,
appropriate
regulations
about
structure
components
still
necessary
achieve
superior
bifunctional
performance.
Herein,
by
simple
ion
exchange
one-step
electrospinning
method,
a
beaded
composite
electrocatalyst
(Fe,
Co–N–C/CNF)
with
Fe,
Co,
N
codoped
nanocages
uniformly
embedded
the
nanofibers
one
was
synthesized,
achieving
simultaneous
structural
compositional
regulation.
Benefiting
from
beaded-like
dual
sites,
Co–N–C/CNF
exhibits
outstanding
catalytic
performance
ORR
OER.
Ultraviolet
photoelectron
spectroscopy
(UPS)
reveals
that
has
low
electron
transfer
barrier
between
active
centers
intermediates,
ultimately
accelerating
kinetics.
In
addition,
Co–N–C/CNF-based
ZAB
also
demonstrates
charge–discharge
compared
Pt/C-RuO2-based
ZAB.
This
study
not
only
offers
an
effective
design
strategy
but
provides
component
regulation
method
ZIF-derived
electrocatalysts.
Advanced Sustainable Systems,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 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.
