Facile synthesis of hierarchical morphology highly porous carbon cobalt oxide composite from one-step carbonization of bio-waste for energy storage application
Abstract
A
new
strategy
made
to
have
a
low-cost
highly
porous
carbon
electrode
material
by
using
bio-waste
date
seeds
is
activated
with
potassium
hydroxide
(KOH)
for
the
synthesis
of
cobalt
oxide
composite
(PCCo)
facile
one-step
carbonization,
and
achieved
high
specific
capacitance.
The
characterization
PCCo
was
done
powder
X-ray
diffraction,
Fourier
transform
infrared
spectrometer,
field
emission
scanning
electron
microscopy,
high-resolution
transmission
Raman
spectroscopy
techniques
confirm
changes
in
chemical
formation
composite.
obtained
has
structure
frameworks
uniformly
dispersed
Co3O4
nanoparticles.
This
hierarchical
architecture
offers
good
ion/electron
transport
channels
better
electrochemical
characteristics.The
maximum
capacitance
found
be
548.4
F/g
at
scan
rate
10
mV/s,
also
from
galvanostatic
charge-discharge
curve,
it
696.8
current
density
1.5
A/g.
Additionally,
retention
84.4%
coulombic
efficiency
97%
even
after
5000
cycles.
energy
47.4
Wh
kg-1
power
853.2
W
kg-1.
These
results
suggest
that
composites
are
cost-effective,
technologically
unique,
eco-friendly
environmental
supercapacitor
applications.
Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 9, 2024
Language: Английский