Sustainable Chemistry for the Environment,
Journal Year:
2024,
Volume and Issue:
7, P. 100138 - 100138
Published: July 30, 2024
In
this
study,
BiOCl-Fe2O3
nanocomposite
was
synthesized
by
mixing
1:1
ratio
of
pre-prepared
BiOCl
and
Fe2O3
in
100
mL
H2O
using
Cocos
nucifera
(coconut
milk)
as
a
green
fuel
through
the
microwave
irradiation
method.
X-ray
diffraction
analysis
(XRD),
Scanning
electron
microscopy
(SEM)
with,
Fourier
transform
infrared
spectroscopy
(FTIR),
UV–vis
spectroscopy(UV–vis),
photoluminescence
(PL)
were
used
to
determine
structure,
morphology,
optical
features
synthesised
nanocomposites.
The
characterized
composites
dye
degradation
electrochemical
activity.
Synthesized
BiOCl-Fe2O3were
degraded
methylene
blue
(MB)
96.2
%
105
min
visible
light.
BiOCl-Fe2O3exhibits
significant
catalytic
activity
towards
dopamine(DA)
under
optimal
conditions.
Cyclic
Voltammetry(CV)
Linear
sweep
voltammetry
(LSV)
with
different
concentrations
DA
studied.
These
results
indicate
that
is
an
effective
approach
for
precise
reliable
identification
signals
biological
samples.
Electrocatalysts
through
an
interconnected
porous
structure
that
are
highly
durable,
active,
and
affordable
for
industrial
scale
production
necessary
electricity
conversion
storage
devices
with
superior
effectiveness.
In
the
present
study,
we
synthesized
free-standing
tri-metal
oxide
(FeNiCoO4)
on
top
of
incredibly
foam-like
(FNCO)
via
a
simple
method.
The
enhanced
FNCO-600
showed
remarkable
electrocatalytic
activity
outstanding
stability
to
related
half-cell
responses
regard
oxygen
reduction
reaction
(ORR
=
0.757
V),
evolution
(OER
230
mV),
hydrogen
(HER
211
mV).
Additionally,
looked
into
overall
efficiency
water
splitting
using
catalyst,
which
exhibited
exceptional
longevity
(70
h)
impressive
cell
voltage
(1.72
V).
Furthermore,
as
cathode,
created
rechargeable
solid-liquid
electrolyte-based
Zn-air
batteries
demonstrated
power
densities
21.8
mW
cm-2
167.4
noteworthy
durability.
Finally,
how
synthesize
produce
free-standing,
catalysts
provide
excellent
energy
conversion.
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(9), P. 4373 - 4384
Published: Feb. 20, 2024
Efficient
and
durable
bifunctional
catalysts
toward
oxygen
reduction
reaction
(ORR)
evolution
(OER)
are
urgently
desirable
but
challenging
for
rechargeable
Zn–air
batteries
(ZABs),
especially
flexible
wearable
ZABs.
Inspired
by
the
vine-leaf-whisker
structure
in
nature,
we
proposed
a
three-dimensional
(3D)
hierarchical
catalyst
(denoted
as
Co–Fe–Zn@N-CNT/CNF)
consisting
of
N-doped
carbon
nanotubes
embedded
with
abundant
CoFe
alloy
nanoparticles,
leaf-shaped
nanoflakes,
porous
fibers
The
special
biomimetic
provides
large
specific
surface
area,
allowing
high
exposure
active
site
ensuring
fast
mass
transport/charge
transfer.
close
combination
bimetallic
alloys
delivers
electrocatalytic
activity,
while
coexistence
various
sites
such
metal
nanoparticles
(NPs),
metal-Nx,
doped
N
species,
their
synergistic
interactions
endows
more
sites.
As
such,
Co–Fe–Zn@N-CNT/CNF
achieves
superior
catalytic
activities
ORR
(a
half-wave
potential
0.84
V)
OER
(an
overpotential
326
mV
at
10
mA
cm–2)
alkaline
media,
comparable
to
commercial
Pt/C
RuO2.
Remarkably,
both
aqueous
solid-state
ZABs
assembled
air
electrodes
demonstrate
excellent
charging/discharging
performance,
peak
power
density,
robust
long-term
cycling
stability.
More
interestingly,
ZAB
performs
well
even
under
bending
conditions,
displaying
satisfactory
device
stability
mechanical
flexibility.
This
study
presents
new
collective
morphological-composition-structural
engineering
strategy
exploiting
efficient
electrocatalysts,
which
is
great
significance
high-performance
energy
storage
devices.
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(4), P. 2011 - 2020
Published: Jan. 1, 2024
An
oxygen-deficient
MnO-CeO
2
@Cs
catalyst,
due
to
its
high
work
function
and
strong
built-in
electric
field,
can
effectively
regulate
charge
redistribution
adsorption/desorption
energies
with
reaction
intermediates,
thereby
improving
ORR
activity.
