Materials Reports Energy,
Journal Year:
2022,
Volume and Issue:
2(2), P. 100092 - 100092
Published: April 11, 2022
Electrochemical
water
splitting
has
been
demonstrated
as
a
promising
technology
for
the
renewable
generation
of
green
hydrogen
from
water.
Despite
extensive
progress
in
materials
science,
one
particular
challenge
further
development
towards
industrial
application
lies
rational
design
and
exploitation
efficient
cost-effective
materials,
especially
oxygen
evolution
reaction
(OER)
electrocatalysts
at
anode.
In
addition,
attempts
to
replace
OER
with
other
more
oxidizable
anode
reactions
are
being
evaluated
groundbreaking
strategy
generating
lower
potentials
reducing
overall
energy
costs
while
producing
valuable
chemicals
simultaneously.
Compared
Fe/Co/Ni-based
compounds,
Cu-based
have
not
received
research
attention
electrode
designs
despite
their
high
conductivity
abundant
earth
reserves.
this
review,
combining
advantages
three-dimensional
network
structure
metal
foams,
we
summarize
recent
on
Cu
foam
(CF)-derived
pure
electrolysis
hybrid
electrolysis.
The
CF
strategies
enhance
electrocatalytic
activity
operational
durability
presented
first.
Catalyst
fabrication
then
highlighted
structure-activity
relationship
is
also
discussed.
Finally,
propose
challenges
perspectives
self-supported
electrodes
beyond
CF-derived
materials.
Carbon Energy,
Journal Year:
2023,
Volume and Issue:
5(12)
Published: Dec. 1, 2023
Abstract
Water‐splitting
reactions
such
as
the
hydrogen
evolution
reaction
(HER)
and
oxygen
(OER)
typically
require
expensive
noble
metal‐based
electrocatalysts.
This
has
motivated
researchers
to
develop
novel,
cost‐effective
electrocatalytic
systems.
In
this
study,
a
new
multicomponent
nanocomposite
was
assembled
by
combining
functionalized
multiwalled
carbon
nanotubes,
Cu‐based
metal–organic
framework
(MOF)
(HKUST‐1
or
HK),
sulfidized
NiMn‐layered
double
hydroxide
(NiMn‐S).
The
resulting
nanocomposite,
abbreviated
MW/HK/NiMn‐S,
features
unique
architecture,
high
porosity,
numerous
electroactive
Cu/Ni/Mn
sites,
fast
charge
transfer,
excellent
structural
stability,
conductivity.
At
current
density
of
10
mA
cm
−2
,
dual‐function
electrocatalyst
shows
remarkable
performance,
with
ultralow
overpotential
values
163
mV
73
(HER),
well
low
Tafel
slopes
(57
75
dec
−1
respectively).
Additionally,
its
turnover
frequency
(4.43
s
for
OER;
3.96
HER)
are
significantly
superior
those
standard
Pt/C
IrO
2
synergistic
effect
nanocomposite's
different
components
is
responsible
enhanced
performance.
A
functional
theory
study
revealed
that
multi‐interface
heterostructure
contribute
increased
electrical
conductivity
decreased
energy
barrier,
in
HER/OER
activity.
presents
novel
vision
designing
advanced
electrocatalysts
performance
water
splitting.
Various
composites
have
been
utilized
water‐splitting
applications.
investigates
use
MW/HK/NiMn‐S
splitting
first
time
indicate
between
carbon‐based
materials
along
layered
compounds
porous
MOF.
each
component
composite
can
be
an
interesting
topic
field
Small,
Journal Year:
2023,
Volume and Issue:
19(45)
Published: July 11, 2023
Abstract
Water
splitting
is
a
promising
technique
in
the
sustainable
“green
hydrogen”
generation
to
meet
energy
demands
of
modern
society.
Its
industrial
application
heavily
dependent
on
development
novel
catalysts
with
high
performance
and
low
cost
for
hydrogen
evolution
reaction
(HER).
As
typical
non‐precious
metal,
cobalt‐based
have
gained
tremendous
attention
recent
years
shown
great
prospect
commercialization.
However,
complexity
composition
structure
newly‐developed
Co‐based
make
it
urgent
comprehensively
retrospect
summarize
their
advance
design
strategies.
Hence,
this
review,
mechanism
HER
first
introduced
possible
role
Co
component
during
electrocatalysis
discussed.
Then,
various
strategies
that
could
effectively
enhance
intrinsic
activity
are
summarized,
including
surface
vacancy
engineering,
heteroatom
doping,
phase
facet
regulation,
heterostructure
construction,
support
effect.
The
progress
advanced
electrocatalysts
discussed,
emphasizing
above
can
significantly
improve
by
regulating
electronic
optimizing
binding
crucial
intermediates.
At
last,
prospects
challenges
according
viewpoint
from
fundamental
explorations
applications.
Small,
Journal Year:
2024,
Volume and Issue:
20(26)
Published: Jan. 14, 2024
The
development
of
effective
oxygen
evolution
reaction
(OER)
and
urea
oxidation
(UOR)
on
heterostructure
electrocatalysts
with
specific
interfaces
characteristics
provides
a
distinctive
character.
In
this
study,
nanocubes
(NCs)
comprising
inner
cobalt
oxysulfide
(CoOS)
NCs
outer
CoFe
(CF)
layered
double
hydroxide
(LDH)
are
developed
using
hydrothermal
methodology.
During
the
sulfidation
process,
divalent
sulfur
ions
(S
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(37)
Published: April 15, 2024
Abstract
This
comprehensive
review
delves
into
the
intricacies
of
photoelectrochemical
(PEC)
water
splitting
process,
specifically
focusing
on
design,
fabrication,
and
optimization
particle‐based
photoelectrodes
for
efficient
green
hydrogen
production.
These
photoelectrodes,
composed
semiconductor
materials,
potentially
harness
light
energy
generate
charge
carriers,
driving
oxidation
reduction
reactions.
The
versatility
as
a
platform
investigating
enhancing
various
candidates
is
explored,
particularly
emerging
complex
oxides
with
compelling
transfer
properties.
However,
challenges
presented
by
many
factors
influencing
performance
stability
these
including
particle
size,
shape,
composition,
morphology,
surface
modification,
electrode
configuration,
are
highlighted.
introduces
fundamental
principles
PEC
splitting,
presents
an
exhaustive
overview
different
synthesis
methods
powders
their
assembly
discusses
recent
advances
in
photoelectrode
material
development.
It
concludes
offering
promising
strategies
improving
stability,
such
adoption
novel
architectures
heterojunctions.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(26), P. 16413 - 16449
Published: June 21, 2024
Layered
double
hydroxides
(LDHs),
especially
those
containing
nickel
(Ni),
are
increasingly
recognized
for
their
potential
in
photo(-/)electrocatalytic
water
oxidation
due
to
the
abundant
availability
of
Ni,
corrosion
resistance,
and
minimal
toxicity.
This
review
provides
a
comprehensive
examination
Ni-based
LDHs
electrocatalytic
(EC),
photocatalytic
(PC),
photoelectrocatalytic
(PEC)
processes.
The
delves
into
operational
principles,
highlighting
similarities
distinctions
as
well
benefits
limitations
associated
with
each
method
oxidation.
It
includes
detailed
discussion
on
synthesis
monolayer,
ultrathin,
bulk
LDHs,
focusing
merits
drawbacks
inherent
approach.
Regarding
EC
oxygen
evolution
reaction
(OER),
strategies
improve
catalytic
performance
insights
structural
during
process
summarized.
Furthermore,
extensively
covers
advancements
PEC
OER,
including
an
analysis
semiconductors
paired
form
photoanodes,
focus
enhanced
activity,
stability,
underlying
mechanisms
facilitated
by
LDHs.
concludes
addressing
challenges
prospects
development
innovative
LDH
catalysts
practical
applications.
provided
this
paper
will
not
only
stimulate
further
research
but
also
engage
scientific
community,
thus
driving
field
forward.
