Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(19), P. 10309 - 10318
Published: Jan. 1, 2023
Utilization
of
bifunctional
high-efficiency
non-precious
electrocatalysts
for
stable
and
effective
water
splitting
is
crucial
to
the
growth
clean
energy
industry.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(20), P. 10684 - 10698
Published: Jan. 1, 2023
Here
an
LDH-derived
microporous
Fe@Ni
3
Se
4
with
enriched
redox
active
Fe
2+
ion
is
reported.
The
same
has
acquired
10
mA
cm
−2
current
density
185
and
33
mV
of
overpotential
value
in
alkaline
condition
high
specific
activity
durability.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(51)
Published: Aug. 31, 2023
Abstract
Developing
efficient
and
affordable
electrocatalysts
for
the
sluggish
oxygen
evolution
reaction
(OER)
remains
a
significant
barrier
that
needs
to
be
overcome
practical
applications
of
hydrogen
production
via
water
electrolysis,
transforming
CO
2
value‐added
chemicals,
metal‐air
batteries.
Recently,
hydroxides
have
shown
promise
as
OER.
In
situ
or
operando
techniques
are
particularly
indispensable
monitoring
key
intermediates
together
with
understanding
process,
which
is
extremely
important
revealing
formation/OER
catalytic
mechanism
preparing
cost‐effective
However,
there
lack
comprehensive
discussion
on
current
status
challenges
studying
these
mechanisms
using
in
techniques,
hinders
our
ability
identify
address
obstacles
present
this
field.
This
review
offers
an
overview
outlining
their
capabilities,
advantages,
disadvantages.
Recent
findings
related
formation
OER
revealed
by
also
discussed
detail.
Additionally,
some
field
concluded
appropriate
solution
strategies
provided.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(16)
Published: Feb. 14, 2024
Abstract
The
alkaline
water
electrolyzer
(AWE)
is
the
earliest
and
most
mature
water‐splitting
technology.
However,
conventional
Raney
Ni
electrocatalysts
dominantly
used
in
AWEs
are
struggling
to
meet
current
demands
for
higher
energy
efficiency
cost‐effectiveness
green
hydrogen
production.
Although
many
promising
electrocatalytic
materials
have
been
developed
using
facile
preparation
methods
laboratory,
they
not
received
much
attention
commercial
AWE
applications.
It
due
academic
negligence
on
specific
operational
conditions,
critical
performance
metrics,
material
costs
associated
with
industrial
AWEs,
as
well
disregarding
impact
of
large‐scale
electrode
manufacturing
processes
catalytic
performance.
Therefore,
a
timely
review
bridge
laboratory
focus
requirements
essential
guide
future
development
electrocatalysts.
Here,
starting
from
differences
operating
testing
conditions
between
systems,
gaps
equipment,
evaluation
methods,
principles
electrodes
outlined.
To
narrow
these
gaps,
some
efforts
advancing
industrially
relevant
highlighted
personal
perspectives
opportunities,
research
focus,
challenges
this
field
provided.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(14), P. 5200 - 5215
Published: Jan. 1, 2024
We
demonstrate
the
practical
applicability
of
Ni–Co–Mn–P
as
an
efficient
electrocatalyst
active
in
all
HER,
OER,
and
ORR
processes
even
under
ultra-high
mass
loading
over
22
mg
cm
−2
.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(12), P. 14742 - 14749
Published: March 14, 2024
The
sluggish
kinetics
of
the
oxygen
evolution
reaction
(OER)
always
results
in
a
high
overpotential
at
anode
water
electrolysis
and
an
excessive
electric
energy
consumption,
which
has
been
major
obstacle
for
hydrogen
production
through
electrolysis.
In
this
study,
we
present
CoNi-LDH/Fe
MOF/NF
heterostructure
catalyst
with
nanoneedle
array
morphology
OER.
1.0
M
KOH
solution,
only
required
overpotentials
275
305
mV
to
achieve
current
densities
500
1000
mA/cm2
OER,
respectively.
catalytic
activities
are
much
higher
than
those
reference
single-component
CoNi-LDH/NF
Fe
catalysts.
improved
performance
can
be
ascribed
synergistic
effect
CoNi-LDH
MOF.
particular,
when
anodic
OER
is
replaced
urea
oxidation
(UOR),
relatively
lower
thermodynamic
equilibrium
potential
expected
reduce
cell
voltage,
same
reduced
by
80
40
mV,
voltage
drive
overall
splitting
(OUS)
1.55
V
100
Pt/C/NF||CoNi-LDH/Fe
two-electrode
electrolytic
cell.
This
value
60
compared
that
(OWS).
Our
indicate
reasonable
construction
significantly
give
rise
electrocatalytic
performance,
using
UOR
replace
OWS
greatly
consumption.
