Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
38(4), P. 3477 - 3490
Published: Jan. 31, 2024
Novel
electrode
development
is
crucial
in
the
hunt
for
long-term
energy
storage
options.
In
this
work,
we
describe
a
promising
advanced
system
with
fabrication
of
cobalt
metal
organic
framework
doped
zinc
sulfide
(Co-MOF/ZnS)
as
an
and
applied
to
hydrogen
evolution
reaction
(HER)
applications.
The
Brunauer–Emmett–Teller
(BET)
method
showed
65.32
m2/g
surface
area
Co-MOF/ZnS.
Co-MOF/ZnS
has
outstanding
capacity
1615
C/g
three-electrode
setup.
Furthermore,
when
paired
activated
carbon
(AC)
supercapattery,
device
exhibits
remarkable
density
59.33
W
h/kg
power
812
W/kg.
cycling
stability
Co-MOF/ZnS//AC
supercapattery
evaluated
by
subjecting
it
10,000
cycles.
test
carried
out
shortly
after
test,
retains
98%
its
original
while
maintaining
high
Coulombic
efficiency
87%.
HER
overpotential
434
mV.
Physica Scripta,
Journal Year:
2024,
Volume and Issue:
99(10), P. 105958 - 105958
Published: Aug. 28, 2024
Abstract
Electrochemical
technologies
like
supercapacitors
and
water-splitting
electrolysis
are
gaining
traction
due
to
their
impressive
efficiency
in
both
energy
storage
generation.
A
hydrothermal
technique
was
employed
synthesize
a
metal–organic
framework
(MOF)
containing
zinc
nickel.
Glycolic
acid
(GA),
naturally
occurring
biodegradable
ligand,
utilized
explore
its
potential
for
incorporation
into
the
MOF
heterostructure.
The
ZnNi-MOF
(GA)
composites
showed
notable
specific
capacity
of
1648
C
g
−1
(2060
F/g)
under
current
density
1.0
at
70
°C.
study
investigated
supercapacitor
system
design
where
combination
polyaniline-doped
activated
carbon
used
negative
electrode
zinc-nickel
positive
electrode.
synthesized
(GA)//AC
device
demonstrated
110
(55
F
)
higher
2.0
.
recyclability
stability
(ZnNi-MOF
(GA)//AC)
were
evaluated
using
10000
charge–discharge
cycles,
yielding
an
86%
retention.
composite
displayed
outstanding
catalytic
ability
hydrogen
evolution
reaction
(HER)
comparison
other
tested
materials,
achieving
lowest
Tafel
slope
42.79
mV/dec.
findings
our
research
suggest
that
exhibits
desirable
characteristics
make
it
promising
material
electrodes
applications
supercapattery
HER.
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.
