International Journal of Modern Physics B,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
In
this
work,
cobalt
phosphate
hydrate
(Co
3
(PO[Formula:
see
text]8H
2
O)
was
deposited
on
Ni-foam
using
the
facile
hydrothermal
method
with
varied
reaction
temperatures
as
120°C,
150°C
and
180°C.
The
X-ray
diffraction
analysis
reveals
C2/m
space
group
of
(CoPH)
a
monoclinic
crystal
structure.
Scanning
electron
microscopy
(SEM)
evaluates
effect
different
morphology
thin
film.
change
in
from
microflakes
to
three-dimensional
(3D)
microflowers
is
observed
due
temperature
variation.
electrochemical
study,
C2
(150°C)
electrode
delivers
specific
capacitance
8798[Formula:
text]mF/cm
(specific
capacity
1.466[Formula:
text]mAh
cm
–2
)
at
30[Formula:
text]mA
cm[Formula:
text]
current
density.
Here,
70.65%
coulombic
efficiency
over
1500
cycles.
energy
density
0.439[Formula:
text]Wh/cm
power
9[Formula:
text]mW/cm
were
delivered
by
optimized
CoP
electrodes,
respectively.
EIS
study
Rs
values
C1,
C3
electrodes
are
1.49,
0.97
1.3
[Formula:
text],