Challenges and progress in oxygen evolution reaction catalyst development for seawater electrolysis for hydrogen production
RSC Advances,
Год журнала:
2024,
Номер
14(9), С. 6416 - 6442
Опубликована: Янв. 1, 2024
Modification
techniques
to
oxygen
evolution
reaction
(OER)
electrocatalysts
for
direct
seawater
electrolysis
(DSWE)
mitigate
chloride
corrosion
from
seawater.
Язык: Английский
Novel BDD-loaded bimetallic phosphide electrodes enable interesting bifunctional seawater electrolysis
International Journal of Hydrogen Energy,
Год журнала:
2024,
Номер
87, С. 867 - 878
Опубликована: Сен. 11, 2024
Язык: Английский
Fe, Mo co-doping enhances the OER performance of nickel sulfide nanoflakes for seawater electrolysis
Yu Tao,
Zhikun Xu,
Rui Yan
и другие.
Journal of Alloys and Compounds,
Год журнала:
2024,
Номер
1010, С. 177480 - 177480
Опубликована: Ноя. 10, 2024
Язык: Английский
A SWOT Analysis of the Green Hydrogen Market
Energies,
Год журнала:
2024,
Номер
17(13), С. 3114 - 3114
Опубликована: Июнь 24, 2024
Since
the
Industrial
Revolution,
humanity
has
heavily
depended
on
fossil
fuels.
Recognizing
negative
environmental
impacts
of
unmoderated
consumption
fuels,
including
global
warming
and
consequent
climate
change,
new
plans
initiatives
have
been
established
to
implement
renewable
sustainable
energy
sources
worldwide.
This
led
a
rapid
increase
in
installed
solar
wind
capacity.
However,
considering
fluctuating
nature
these
sources,
green
hydrogen
proposed
as
suitable
carrier
improve
efficiency
production
storage.
Thus,
hydrogen,
produced
by
water
electrolysis
using
electricity,
is
promising
solution
for
future
market.
Moreover,
it
potential
be
used
decarbonization
heavy
industry
transportation
sectors.
Research
development
(R&D)
grown
considerably
over
past
few
decades,
aiming
maximize
expand
its
market
share.
The
present
work
uses
SWOT
(strengths,
weaknesses,
opportunities,
threats)
analysis
evaluate
current
status
external
internal
factors
that
affect
position
are
assessed.
results
show
right
track
becoming
competitive
alternative
fuels
soon.
Supported
benefits,
government
incentives,
carbon
taxes,
roadmaps
map
outlined.
Nevertheless,
increased
investments
required
further
R&D,
costs
must
reduced
policies
enforced.
These
measures
will
gradually
decrease
dependency
ensure
followed
through.
Язык: Английский
Bimetallic Ni–Co-MOF Nanostructures for Seawater Electrolysis: Unveiling the Mechanism of the Oxygen Evolution Reaction Using Impedance Spectroscopy
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 11, 2025
Designing
anode
electrodes
with
long-term
stability
and
efficiency
for
seawater
electrolysis
is
crucial
addressing
key
challenges
in
sustainable
hydrogen
production
clean
energy
systems.
Here,
we
developed
self-supporting
bimetallic
Ni–Co-MOF
electrodes,
demonstrating
exceptional
performance
durability
alkaline
due
to
their
high
voltammetric
charge
density
increased
electrochemically
accessible
active
sites.
The
reaction
kinetics
of
the
water
oxidation
presence
Cl–
ions
(at
concentrations
ranging
from
0.5
M
3.5
M)
were
investigated
through
electrochemical
impedance
spectroscopy
(EIS)
analysis,
focusing
on
kinetic
parameters,
suggesting
that
rate-determining
step
(RDS)
chemical
process
following
initial
electron
transfer.
Notably,
electrolyte
medium
do
not
alter
OER
rate-limiting
step,
as
indicated
by
negligible
variations
anodic
transfer
coefficient
values.
However,
blocking
sites
evident
decrease
interfacial
capacitance
(Cchem)
values
increasing
concentration.
These
findings
offer
a
deeper
understanding
chloride-containing
environments
correlating
parameters
site
availability.
This
work
highlights
critical
considerations
designing
efficient
durable
anodes
electrolysis.
Язык: Английский
Operando interpretation of reaction mechanisms and local phenomena on OER catalysts in seawater electrolysis
Current Opinion in Electrochemistry,
Год журнала:
2024,
Номер
47, С. 101560 - 101560
Опубликована: Июнь 20, 2024
Direct
seawater
splitting
has
great
potential
for
constructing
an
economic
hydrogen
production
system
and
resolving
water
scarcity
via
pure
from
evolved
hydrogen.
However,
transforming
electrocatalytic
direct
into
a
viable
process
is
extremely
challenging
point
of
view.
A
vast
number
present
ions
impurities
in
seawater,
e.g.
Na+,
Mg2+,
Cl-,
SO42-,
Br-,
disrupts
efficient
oxygen
evolution
reaction
(OER)
anode
or
cathode.
In
this
respect,
there
are
different
challenges
posing
on
understanding
the
effect
complex
nature
especially
OER
catalysts
electrolysis.
This
mini-review
covers
electrochemical
operando
techniques
used
order
to
understand
activity,
stability,
equally
important
selectivity
electrocatalysts.
Язык: Английский
Cutting-Edge OER Electrocatalysts for Sustainable Seawater Electrolysis: Progress, Obstacles, and Future Prospects
Energy & Fuels,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 17, 2024
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.
Язык: Английский
Cobalt Molybdenum Telluride as an Efficient Trifunctional Electrocatalyst for Seawater Splitting
Catalysts,
Год журнала:
2024,
Номер
14(10), С. 684 - 684
Опубликована: Окт. 2, 2024
A
mixed-metal
ternary
chalcogenide,
cobalt
molybdenum
telluride
(CMT),
has
been
identified
as
an
efficient
tri-functional
electrocatalyst
for
seawater
splitting,
leading
to
enhanced
oxygen
evolution
reaction
(OER),
hydrogen
(HER),
and
reduction
(ORR).
The
CMT
was
synthesized
by
a
single
step
hydrothermal
technique.
Detailed
electrochemical
studies
of
the
CMT-modified
electrodes
showed
that
promising
performance
OER
in
simulated
solutions,
exhibiting
small
overpotential
385
mV
at
20
mA
cm−2,
superior
catalyst
durability
prolonged
period
continuous
evolution.
Interestingly,
while
gas
chromatography
analysis
confirmed
anodic
chamber,
it
there
no
chlorine
from
these
alkaline
seawater,
highlighting
novelty
this
catalyst.
also
displayed
remarkable
ORR
activity
indicated
its
four-electron
pathway
forming
water
dominant
product.
One
primary
challenges
splitting
is
oxidation
dissolved
chloride
salts.
successfully
significantly
lowers
potential,
thereby
separating
potentials
larger
margin.
These
results
suggest
can
function
highly
active
with
significant
stability,
making
suitable
clean
energy
generation
environmental
applications
using
seawater.
Язык: Английский
Charting Oman's Path to Green Hydrogen: Embracing Opportunities and Overcoming Challenges
Опубликована: Сен. 10, 2024
Abstract
Achieving
net-zero
emissions
is
a
global
obligation
that
requires
everyone's
participation.
In
its
unwavering
commitment
to
this
cause,
the
Sultanate
of
Oman
(Oman)
considers
green
hydrogen
be
crucial
element
in
decarbonisation
plan,
which
expected
reduce
total
carbon
2050
by
8%
(8.5
Mt).
Furthermore,
intends
position
itself
as
hub
for
production
and
export
2030,
testament
dedication
environmental
sustainability.
The
objective
study
explore
how
Oman's
abundant
natural
resources
can
harnessed
address
challenges
posed
current
technologies
used
green-hydrogen
promote
adoption
renewable
energy
sources
country.
paper
presents
an
analysis
unique
opportunities
available
Oman:
first,
using
minerals
critical
elements
extracted
from
country's
land
manufacturing
electrolysis
systems;
second,
power
plants
with
clean
electrical
power,
including
systems.
discussion
covers
different
types
electrolysis,
alkaline
water
(AWE),
proton-exchange
membrane
(PEM)
solid
oxide
(SOE),
anion-exchange
(AEM)
electrolysis.
Additionally,
it
delves
into
various
sources,
such
onshore
wind,
solar
photovoltaics
(PV),
concentrated
(CSP),
among
others,
all
are
Oman.
compares
terms
costs
installation,
operation
maintenance,
produced
electricity,
system
lifetime.
examines
associated
limitation
pure
required
water-splitting
operations
environment.
Moreover,
discusses
their
impact
on
flora
fauna,
effects
high
temperatures
dusty
climates
systems,
challenge
cost-effectiveness,
providing
comprehensive
understanding
issues
at
hand.
most
significant
findings
summarised
follows.
First,
platinum,
accounts
more
than
50%
stack
costs,
makes
PEM
electrolysers
expensive.
produces
exports
could
opportunity.
Second,
installation
cost
CSP
higher
other
sources.
This
discourages
investors.
It
has
advantage,
however,
being
capable
storage.
Third,
mountain
ranges
provide
lower
dust
levels,
minimise
negative
accumulation
PV
cells.
will
help
future
researchers
identifying
produce
overcome
challenges.
Язык: Английский
Self‐Adapting Oxyanion Armor Achieves Highly Stable and Efficient Seawater Electrolysis at Ampere‐Level Current Densities
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 15, 2024
Abstract
Seawater
electrolysis
is
an
effective
way
for
large‐scale
green
hydrogen.
Nevertheless,
the
anode
suffers
from
severe
corrosion
of
Cl
−
and
Br
during
oxygen
evolution,
which
gives
rise
to
issues
narrow‐deep
pits
shallow‐wide
pits,
respectively.
Herein,
anti‐corrosion
strategy
presented
by
self‐adapting
oxyanion
armor
prevent
high
valence
active
sites
corrosion.
The
core–shell
FeNi
2
Se
4
@NiFe‐Phy
reconstructed
species
NiFeOOH
covered
layer
composed
phosphoric
carbonate.
aimed
exhibits
remarkable
efficiency,
achieving
current
densities
10
200
mA
cm
−2
at
overpotentials
merely
220
277
mV,
Notably,
it
shows
unparalleled
durability,
enduring
without
any
discernible
degradation
following
rigorous
testing
400
h
400–1000
in
alkaline
simulated
seawater,
as
well
natural
seawater.
A
combination
density
functional
theory
calculations
molecular
dynamics
simulations
further
confirms
bifunctional
enhancement
on
surface.
At
a
,
seawater
electrolyzer
has
significant
energy
consuming
4.61
4.27
kWh
Nm
−3
H
room
temperature
80
°C,
This
work
offers
efficacious
surface
resistance
protection
electrolysis.
Язык: Английский