Electroanalysis,
Год журнала:
2021,
Номер
33(5), С. 1356 - 1369
Опубликована: Фев. 17, 2021
Abstract
Herein,
nitrogen,
sulfur
co‐doped
carbon
dots
(N,S−CDs)
have
been
synthesized
by
a
cost‐natural
fabrication
method
using
waste
orange‐peel
as
natural‐carbon‐precursor.
N,S−CDs
hydrothermally
anchored
to
the
three‐dimensional‐graphene‐networks
(3D−GNs)
boost
electrocatalytic
activity
defective
surface
effect.
Due
synergistic
utilization
of
heteroatoms,
and
effective
mass‐transfer
improved
transport
kinetics
resulting
from
interconnected
3D‐architecture,
3D−GNs
(N,S−CDs@3D−GNs)
grant
superior
oxygen‐reduction‐reaction
(ORR)
activity.
N,S−CDs@3D−GNs
exhibit
dominant
four‐electron
pathway
(
n=3.89
)
for
ORR
in
alkaline
media
besides
methanol
tolerance
robust
stability.
This
work
opens
door
converting
low‐value
agricultural
wastes
into
value‐added
materials
utilizing
energy
application.
