Physica Scripta,
Journal Year:
2024,
Volume and Issue:
99(12), P. 125975 - 125975
Published: Nov. 11, 2024
Abstract
We
efficiently
synthesize
magnesium
copper
phosphate
nanoparticles
(MgCuPO
4
)
doped
with
graphene
quantum
dots
(GQDs)
using
a
hydrothermal
method
for
supercapattery
and
oxygen
evolution
reactions
in
KOH
electrolyte.
The
GQDs-MgCuPO
electrode
has
high
specific
capacity
(1188
Cg
−1
at
1.0
Ag
rate
capability
(67%).
symmetric
(GQDs-MgCuPO
//GQDs-MgCuPO
provides
staggering
energy
density
of
46
Wh-kg
,
as
well
power
1300
W-kg
cyclic
stability
93%
after
10,000
cycles.
Furthermore,
it
demonstrates
efficiency
the
reaction
(OER)
hydrogen
(HER),
corresponding
low
overpotentials
181
mV
119
mV.
stands
out
capable
solution
various
storage
conversion
difficulties.
Energy & Fuels,
Journal Year:
2023,
Volume and Issue:
37(20), P. 16072 - 16086
Published: Sept. 27, 2023
Wood,
becoming
a
renewable
biomass
resource,
shows
lot
of
potential
for
various
uses.
In
this
work,
we
developed
novel
carbonized
wood
as
substrate
material,
and
AgCo-MOF/MnS
was
deposited
on
it.
This
composite
material
AgCo-MOF/MnS@CWS
possesses
unique
properties
such
excellent
specific
capacitance,
adaptability,
flexibility,
the
capacity
to
produce
high
electrical
power.
When
tested
in
three-cell
assembly,
resultant
showed
remarkable
performance
by
delivering
1068
C/g
at
1.0
A/g.
A
supercapacitor
also
built
merging
AgCoMOF/MnS@CWS
AC@CWS
two-cell
configuration.
The
energy
power
density
AgCoMOF/MnS@CWS//AC@CWS
device
50
Wh/kg
830
W/kg,
respectively.
Additionally,
stability
measurement
indicates
that
can
retain
up
98%
its
initial
after
12000
GCD
cycles.
demonstrates
146
mV
overpotential
along
45
mV/dec
Tafel
slope
OER
application.
