Molecules,
Journal Year:
2024,
Volume and Issue:
29(21), P. 5195 - 5195
Published: Nov. 2, 2024
Metal
sulfide-based
composites
have
become
increasingly
common
as
materials
used
for
electrodes
in
supercapacitors
because
of
their
excellent
conductivity,
electrochemical
activity,
and
redox
capacity.
This
study
synthesized
a
composite
NiFeS@MoS2@rGO
nanostructure
using
simple
hydrothermal
approach.
The
nanocomposite
consisted
the
nickel
sulfide
iron
doped
with
MoS2@rGO.
A
three-electrode
cell
is
employed
to
investigate
properties
electrode.
results
demonstrated
an
optimal
specific
capacitance
3188
F/g
at
1.4
A/g
1
M
KOH
electrolyte.
Furthermore,
supercapattery
designed
utilizing
NiFeS@MoS2@rGO//AC
positive
electrode
activated
carbon
(AC)
negative
materials.
resulting
voltage
1.6
V,
achieving
capacity
value
189
C/g
A/g.
It
also
energy
density
55
Wh/kg
enhanced
power
3800
W/kg.
hybrid
device
remarkable
stability
cycling
95%
over
30,000
charge–discharge
cycles
current
supercapattery,
which
has
storage
capabilities,
source
operating
different
portable
electronic
devices.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 18, 2024
Water
electrolyzer
is
crucial
for
producing
clean
hydrogen,
but
the
traditional
approach
faces
challenges
owing
to
oxygen
evolution
reaction
(OER)
slow
kinetics
at
anode.
Hybrid
water
splitting
replaces
OER
with
oxidation
of
an
organic
molecule
enhance
hydrogen
production
along
value-added
products.
The
scarcity
affordable
and
highly
effective
catalysts
remains
a
major
challenge.
MXene,
2D
nanomaterial,
has
gained
substantial
attention
its
enviable
properties,
instance
high
conductivity,
hydrophilicity,
surface
area.
This
review
discusses
experimental
methods
synthesizing
MXene
MXene-based
nanocomposites.
Furthermore,
small
molecules
such
as
benzyl
alcohol,
methanol,
ethanol,
urea,
hydrazine,
furfural,
formic
acid
alternatives
examined.
Finally,
understanding
imminent
research
development
MXene-associated
materials
in
electrocatalytic
applications
are
presented.
Journal of Electrochemical Science and Technology,
Journal Year:
2024,
Volume and Issue:
15(4), P. 541 - 550
Published: July 24, 2024
<p>With
the
depletion
of
fossil
fuels
and
rising
global
demand
for
energy,
photoelectrochemical
(PEC)
water
splitting
presents
a
promising
solution
to
avert
an
energy
crisis.
Titanium
dioxide
(TiO<sub>2</sub>),
<italic>n</italic>-type
semiconductor,
has
gained
popularity
as
photoanode
due
its
remarkable
PEC
properties.
Nevertheless,
inherent
challenges
such
wide
band
gap
(~3.2
eV),
charge
recombination,
slow
oxygen
evolution
reaction
(OER)
rates
at
surface
limit
practical
application
by
constraining
light
absorption.
To
overcome
these
limitations,
we
have
developed
TiO<sub>2</sub>
nanotubes
(NTs)
using
facile
anodization
method.
This
study
examines
impact
growth
parameters
on
solar
oxidation
performance.
Specifically,
NTs
with
modified
time
(referred
TiO<sub>2</sub>-6)
showed
3.5-fold
increase
in
photocurrent
density
compared
as-grown
NTs.
Furthermore,
electrochemical
analyses,
impedance
spectroscopy
(EIS),
indicated
significant
decrease
transfer
resistance
following
adjustment
on-off
time.
Additionally,
TiO<sub>2</sub>-6
demonstrated
higher
electrochemically
active
area
(ECSA)
than
other
samples.
Therefore,
optimal
nanostructuring
are
crucial
enhancing
properties
Overall,
our
findings
offer
valuable
insights
fabricating
high-quality
photoanodes,
contributing
developing
efficient
systems
sustainable
production.</p>
ECS Journal of Solid State Science and Technology,
Journal Year:
2024,
Volume and Issue:
13(11), P. 111001 - 111001
Published: Nov. 1, 2024
Monosodium
glutamate
(MSG),
also
known
as
sodium
glutamate,
is
a
widely
used
food
additive
in
commercial
foods,
and
controlling
its
level
essential
for
ensuring
safety
quality.
For
the
detection
of
MSG,
hydrothermal
approach
to
synthesize
both
MXene
NiCu-MOF.
Scanning
electron
microscopy,
X-ray
diffraction,
photoelectron
spectroscopy
were
manipulated
examine
composite
morphology,
structure,
composition.
The
MXene/NiCu-MOF
electrode
displayed
an
exceptional
specific
capacity
277
Cg
−1
at
scanning
speed
1.3
mVs
.
MXene/NiCu-MOF//AC
exhibited
(Cs)
271.64
2
Ag
when
employed
supercapattery.
device
demonstrated
excellent
performance,
attaining
(P
d
)
1946.21
W
kg
(E
37.17
Wh
Furthermore,
retention
81%
after
5,000
cycles
reliability
test.
MSG
was
utilized
glassy
carbon
which
enhanced
with
gold
nanoparticles.
current
technique
implemented
NiCu-
MOF/MXene
conductive
matrix,
use
anti-glutamate
antibody.
correlation
remained
stable
from
0.05
200
μM
range.
multipurpose
nanocomposite
material
opens
up
possibilities
developing
novel
hybrid
devices
energy
harvesting.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(21), P. 5195 - 5195
Published: Nov. 2, 2024
Metal
sulfide-based
composites
have
become
increasingly
common
as
materials
used
for
electrodes
in
supercapacitors
because
of
their
excellent
conductivity,
electrochemical
activity,
and
redox
capacity.
This
study
synthesized
a
composite
NiFeS@MoS2@rGO
nanostructure
using
simple
hydrothermal
approach.
The
nanocomposite
consisted
the
nickel
sulfide
iron
doped
with
MoS2@rGO.
A
three-electrode
cell
is
employed
to
investigate
properties
electrode.
results
demonstrated
an
optimal
specific
capacitance
3188
F/g
at
1.4
A/g
1
M
KOH
electrolyte.
Furthermore,
supercapattery
designed
utilizing
NiFeS@MoS2@rGO//AC
positive
electrode
activated
carbon
(AC)
negative
materials.
resulting
voltage
1.6
V,
achieving
capacity
value
189
C/g
A/g.
It
also
energy
density
55
Wh/kg
enhanced
power
3800
W/kg.
hybrid
device
remarkable
stability
cycling
95%
over
30,000
charge–discharge
cycles
current
supercapattery,
which
has
storage
capabilities,
source
operating
different
portable
electronic
devices.
