Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(31), P. 19935 - 19949
Published: Jan. 1, 2024
Catalytically
dynamic
NSP-CF@NCW
electrode
engineered
by
strategic
integration
of
3D
Se
and
P-fused
NSP
microflakes
with
CF
cubes
docked
NCW
was
studied
as
a
trifunctional
electrocatalyst
for
urea
sensing
urea-assisted
water
splitting.
ACS Applied Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 6, 2025
Layered
double
hydroxides
(LDH)
have
exhibited
promising
applications
as
electrocatalysts
in
oxygen
evolution
reactions
(OER).
In
this
work,
trimetallic
LDHs
(CoNiFe-LDH)
were
designed
and
grown
on
graphene
(G)
through
a
one-step
hydrothermal
approach
to
obtain
structure
that
promotes
efficient
charge
transfer.
A
2-level
full-factorial
design
was
utilized
evaluate
the
effects
of
varying
concentrations
Co
(1.5,
3,
4.5
mmol)
(10,
30,
50
mg)
OER
activity.
The
potential
needed
deliver
10
mA
cm-2
chosen
response
parameter.
independent
dependent
parameters
fitted
linear
model
equation
ANOVA
analysis.
computed
p-values
below
0.05
signifying
statistical
significance
cobalt
their
interaction,
suggesting
correlation
with
experiments
conducted
triplicate
using
Co[3]Ni[3]Fe[3]-LDH/G[30]
(central
point)
estimate
variability
(0.58%).
Comparative
analysis
showed
Co[1.5]Ni[3]Fe[3]-LDH/G[10]
achieved
lowest
onset
(1.54
V),
at
(1.58
Tafel
slope
(58.4
mV
dec-1),
indicating
low
concentration
make
an
electrocatalyst
for
OER.
Furthermore,
optimized
composite
demonstrated
favorable
electronic
properties,
transfer
resistance
(RCT)
188.1
Ω,
good
stability,
maintaining
its
catalytic
activity
no
significant
loss
over
24-h
period.