Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
63(47), С. 20553 - 20562
Опубликована: Ноя. 13, 2024
In
recent
years,
Fe–N–C
materials
have
been
considered
as
feasible
substitutes
for
platinum-based
catalysts
to
enhance
the
oxygen
reduction
reaction
(ORR).
However,
still
specific
problems,
including
poor
inherent
activity,
restricted
availability
of
active
sites,
and
inferior
stability.
This
work
presents
a
simple
efficient
method
synthesizing
Fe/N
codoped
hierarchical
porous
carbon
nanosheets
using
one-step
pyrolysis.
The
optimized
900
catalyst
exhibits
excellent
ORR
performance
with
an
onset
potential
0.958
V
half-potentials
0.885
in
alkaline
medium,
surpassing
those
commercial
Pt/C
catalyst.
addition,
optimal
demonstrated
improved
stability
great
resistance
methanol.
Furthermore,
zinc-air
battery
constructed
from
shows
remarkable
power
density
163.65
mW
cm–2
capacity
807.80
mA
h
gZn–1.
electrochemical
cycle
were
proven
exceed
400
at
current
5
cm–2.
study
offers
valuable
insights
development
highly
stable
clean
energy
field.
Batteries & Supercaps,
Год журнала:
2024,
Номер
7(11)
Опубликована: Авг. 15, 2024
Abstract
Rechargeable
Zn‐air
batteries
offer
the
advantages
of
environmental
friendliness,
safety,
low
prices
and
high
energy
density,
are
highly
valued.
However,
major
challenge
faced
by
rechargeable
nowadays
is
efficiency
due
to
slow
reaction
kinetics
electrocatalyst
at
air
cathode.
Bifunctional
catalysts
key
development
improving
their
overall
performance
long‐term
cycling
stability.
Metal‐organic
framework
(MOF)
materials
have
shown
great
benefits
as
oxygen
electrocatalysts
in
promoting
reduction
(ORR)
evolution
(OER).
This
paper
reviews
recent
advances
three
kinds
MOF
bifunctional
for
batteries.
Additionally,
this
also
discusses
synthetic
design
strategy
composite
derivatives,
concludes
suggesting
application
field
