Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(47), P. 20553 - 20562
Published: Nov. 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.
