ABSTRACT
Fabrication
of
hierarchical
porous
structure
two-dimensional
layered
double
hydroxides
(LDHs)
materials
still
faces
high
challenges,
especially
the
precise
modulations
lamellar
metals
and
interlayer
anions.
Herein,
in
order
to
overcome
slow
kinetics
water
oxidation
reaction
which
requires
efficient
electrocatalysts
for
oxygen
evolution
(OER),
a
nanocomposite
assembled
by
foam
nickel
(NF)
supported
borate
anions
incorporated
bimetallic
NiCo
hydrotalcite
(NiCo-BLDH)
on
surface
phosphide
sheets
(NF/Ni2P@NiCo-BLDH)
is
prepared
as
an
electrocatalyst
through
NF
in-situ
phosphating
electrodeposition
approach.
Experimental
investigations
indicate
that
introducing
multi-phase
into
transition
metal
LDHs
can
regulate
their
properties,
enhance
adsorption
efficiency
OH-,
thereby
enhancing
OER
activity.
Remarkably,
NF/Ni2P@NiCo-BLDH
electrode
shows
low
overpotential
293
mV
at
100
mA
cm−2
Tafel
slope
108.3
dec−1
1.0
M
KOH
medium,
smaller
than
most
previously
reported
NiCo-based
catalysts.
However,
NF/Ni2P
exhibits
more
hydrogen
medium
compared
electrode.
This
work
may
push
forward
catalytic
activity
NiCo-LDH-based
provide
new
idea
large-scale
electrocatalytic
splitting.
Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 17, 2024
The
oxygen
evolution
reaction
(OER)
and
reduction
(ORR)
are
some
of
the
most
important
reactions
in
electrochemical
energy
technologies
such
as
fuel
cells
metal–air
cells.
ChemCatChem,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 9, 2024
Abstract
The
electrochemical
oxygen
evolution
reaction
(OER)
can
be
combined
with
various
reactions
to
fabricate
energy
conversion
and
storage
devices
while
the
slow
kinetics
poor
mass
transfer
capability
at
high
current
densities
are
key
constraints
its
large‐scale
application.
Therefore,
this
review
primarily
focuses
on
design
optimization
of
structures
TM‐metal‐based
OER
catalysts.
Nanostructuring,
porous
design,
creation
hierarchical
architectures
have
been
applied
during
catalyst
synthesis
enhance
surface
area
accessibility,
thereby
improving
catalytic
efficiency.
Strategies
including
doping,
substrate
invitation,
soft/hard
templating
utilized
accelerate
as
well
ion/electron
conduction
efficiency
for
overall
improvement
performance
These
developments
underline
critical
role
advanced
material
in
achieving
high‐performance
catalysts
highlight
potential
TM‐based
materials
cost‐effective
scalable
applications.
New Journal of Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Cobalt
phosphates
have
been
synthesized
using
a
successive
ionic
layer
adsorption
and
reaction
(SILAR)
method
studied
their
supercapacitor
oxygen
evolution
performances.