Energy & Fuels,
Год журнала:
2024,
Номер
38(12), С. 11137 - 11147
Опубликована: Июнь 10, 2024
As
a
viable
method,
electrocatalytic
water
splitting
for
hydrogen
production,
particularly
in
seawater,
appears
to
be
an
appealing
technique.
Herein,
the
Co4N–Ni3N
heterostructure
was
derived
by
controlled
nitridation
of
bimetallic
NiCo-based
metal–organic
framework.
The
shows
very
low
overpotential
330
and
319
mV
at
high
value
500
mA
cm–2
alkaline
freshwater
oxygen
evolution
reaction
(OER)
(HER),
respectively,
can
perform
large
current
density
nearly
1.2
A
OER
1
HER.
Since
is
less
than
limit
chlorine
reaction,
it
provides
potential
platform
chlorine-free
seawater
electrolysis.
catalyst
exhibits
exceptional
durability,
maintaining
stability
over
230
h
100
HER
without
experiencing
significant
loss
activity.
For
total
decomposition,
cell
1.97
2.19
V
M
KOH
simulated
respectively.
This
enhanced
activity
due
synergistic
impact
caused
situ
development
interface
between
Co4N
Ni3N
phases
during
process.
The
oxygen
evolution
reaction
(OER)
has
a
significant
influence
on
the
hydrogen
(HER)
in
electrocatalytic
splitting
of
water/seawater,
because
its
sluggish
kinetics
and
complex
mechanism.
Additionally,
case
seawater,
presence
chloride
anions
is
harmful
for
metallic
electrocatalysts
their
electrode
surfaces,
leading
to
oxidation
generation
environmentally
chlorine
gas
or
hypochlorite
ion
during
process,
decreasing
efficiency
OER
hampering
overall
electrolysis
process.
To
tackle
this
problem,
highly
potent
advanced
needs
be
designed
electrolyzing
seawater.
This
paper
presents
detailed
discussion
recent
progress
made
research
development
process
It
comprehensively
explores
use
many
types
catalysts,
such
as
polymetallic
heterostructure
phosphides,
layered
double
hydroxide-based
materials,
transition-metal
oxides,
spinel
perovskite
metal
nitride
seawater
electrolysis.
A
summary
performances
few
recently
reported
catalysts
falling
above
categories
been
provided.
An
overview
current
state
affairs
that
includes
expenses,
synthesis
difficulties,
activities,
electrocatalyst
stability
provided
order
aid
more
accurate
assessment.
DFT
calculations
situ
characterization
methods
help
catalyst
are
highlighted
extensively
article.
Furthermore,
number
requirements
could
come
up
electrochemical
conversions
have
covered,
including
high
conductivity,
corrosion
resistance,
ability
avoid
aside
reduction
processes.
superhydrophilic
superaerophobic
properties
incorporated.
particular
property
enhances
electrode's
interaction
with
electrolyte,
increases
mass
transfer
efficiency,
speeds
removal
O2
bubbles
OER.
Compared
freshwater
electrolysis,
variety
challenges
practical
application
(SWE).
provides
thorough
all
relevant
data
required
generate
an
effective
active
SWE.
Advanced Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 24, 2024
The
rational
design
of
multicomponent
heterostructure
is
an
effective
strategy
to
enhance
the
catalytic
activity
electrocatalysts
for
water
and
seawater
electrolysis
in
alkaline
conditions.
Herein,
MOF-derived
nitrogen-doped
carbon/nickel-cobalt
sulfides
coupled
vertically
aligned
Rhenium
disulfide
(ReS
Different
phases
of
nickel
selenides
are
synthesized
from
a
single
coordination
polymer
precursor
by
tuning
the
electronic
structure
for
bifunctional
electrocatalytic
OER
and
ORR
in
alkaline
media.
Abstract
Given
the
rising
global
energy
demand
and
increasing
emphasis
on
environmental
protection,
development
of
renewable
conversion
technologies
to
replace
fossil
fuels
has
emerged
as
a
critical
research
priority.
Among
these
technologies,
seawater
electrocatalysis
garnered
attention
high‐efficiency
environmentally
friendly
approach.
This
review
summarizes
recent
advancements
in
for
resource
extraction,
covering
reaction
mechanisms
hydrogen
production
via
electrolysis
progress
electrocatalytic
materials.
Specifically,
we
discuss
materials
based
non‐precious
metals,
precious
nonmetals,
bifunctional
electrocatalysts.
Additionally,
inorganic
pollutants
(e.
g.,
hydrazine,
sulfides)
organic
compounds
urea,
microplastics)
is
reviewed,
emphasizing
its
significance
marine
utilization
remediation.
We
also
explore
electrochemical
strategies
extracting
valuable
metal
ions,
such
calcium,
magnesium,
uranium,
lithium,
abundant
seawater.
Although
faces
challenges
terms
cost
technical
scalability,
technology
interdisciplinary
collaboration
offer
promising
prospects
commercialization
with
potential
make
substantial
contributions
sustainable
development.
