Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(45)
Published: Oct. 28, 2024
Abstract
High‐current‐density
water
electrolysis
is
considered
a
promising
technology
for
industrial‐scale
green
hydrogen
production,
which
of
significant
value
to
energy
decarbonization
and
numerous
sustainable
industrial
applications.
To
date,
substantial
research
advancements
are
achieved
in
catalyst
design
laboratory‐based
electrolysis.
While
the
designed
catalysts
demonstrate
remarkable
performance
at
low
current
densities,
they
suffer
from
marked
deteriorations
both
activity
long‐term
stability
under
industrial‐level
high‐current‐density
operations.
provide
timely
assessment
that
helps
bridge
gap
between
laboratory‐scale
fundamental
practical
technology,
here
various
commercial
electrolyzers
first
systematically
analyzed,
then
key
parameters
including
work
temperature,
density,
lifetime
stacks,
cell
efficiency,
capital
cost
stacks
critically
evaluated.
In
addition,
impact
high
density
on
electrocatalytic
behavior
catalysts,
intrinsic
activity,
stability,
mass
transfer,
discussed
advance
design.
Therefore,
by
covering
range
critical
issues
material
principles
parameters,
future
directions
development
highly
efficient
low‐cost
presented
procedure
screening
laboratory‐designed
outlined.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(24)
Published: March 18, 2024
Abstract
The
development
of
efficient
and
durable
non‐precious
hydrogen
evolution
reaction
(HER)
catalysts
for
scaling
up
alkaline
water/seawater
electrolysis
is
highly
desirable
but
challenging.
Amorphous‐crystalline
(A‐C)
heterostructures
have
garnered
attention
due
to
their
unusual
atomic
arrangements
at
hetero‐interfaces,
exposed
active
sites,
excellent
stability.
Here,
a
heterogeneous
synthesis
strategy
constructing
A‐C
non‐homogeneous
interfacial
centers
electrocatalysts
on
nanocages
presented.
Isolated
PdCo
clusters
nanoscale
islands
in
conjunction
with
Co
3
S
4
A‐C,
functioning
as
bifunctional
site
“island‐sea”
synergy,
enable
the
dynamic
confinement
design
metal
atoms,
resulting
HER
catalytic
activity
durability.
hierarchical
structure
hollow
porous
nanoclusters,
along
large
surface
area
multi‐dimensional
boundaries
defects,
provides
catalyst
abundant
centers.
Theoretical
calculations
demonstrate
that
combination
regulates
redistribution
interface
electrons
effectively,
promoting
sluggish
water‐dissociation
kinetics
cluster
sites.
Additionally,
PdCo‐Co
heterostructure
exhibit
outstanding
seawater
long‐term
stability
100
h,
which
can
be
powered
by
commercial
silicon
solar
cells.
This
finding
significantly
advances
large‐scale
production.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 15, 2024
Abstract
Metal
oxides
with
spinel
structure
have
garnered
increasing
attention
as
promising
alternatives
to
noble
metal‐based
electrocatalysts.
However,
these
electrocatalysts
often
fail
simultaneously
exhibit
high
activity
and
stability
for
both
hydrogen
evolution
reaction
(HER)
oxygen
(OER),
limiting
their
applications
in
electrocatalytic
water
splitting.
Herein,
crystalline/amorphous
heterogeneous
interfaces
are
successfully
introduced
into
NiCo
2
O
4
nanosheets,
which
grown
situ
on
carbon
cloth
(CC),
denoted
‐B‐CC.
The
amorphous/crystalline
heterostructures
combine
the
advantages
of
phases
amorphous
phase
nanosheets
modulates
electron
density,
provides
abundant
single
vacancies
active
sites,
enhances
corrosion
resistance,
while
crystalline
improves
conductivity.
Density
functional
theory
(DFT)
calculations
performed
investigate
influence
surface
vacancy
(SV
)
OER
HER
processes.
NiCo₂O₄‐B‐CC
exhibits
overpotentials
only
26
mV
215
at
a
current
density
10
mA
cm
−2
.
It
excellent
performance
splitting,
achieving
400
an
applied
voltage
2.0
V.
construction
novel
approach
enhancing
metal
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(44)
Published: May 21, 2024
Abstract
Amorphous
materials
with
a
high
number
of
unsaturated
coordinated
dangling
bonds
exhibits
macroscopic
homogeneity
and
isotropy,
making
it
easily
modifiable
to
improve
the
catalytic
properties.
At
present,
several
feasible
modification
strategies
for
amorphous
have
been
proposed
applied
multiple
fields.
This
review
aims
provide
comprehensive
overview
recent
research
advancements
in
catalysis.
First,
general
modifying
are
summarized.
Subsequently,
potential
applications
modified
electrocatalysis
photocatalysis
highlighted.
Additionally,
positive
effects
various
tools
on
properties
elucidated.
Finally,
summary
challenges
offer
critical
perspective
further
development
presented.
The
primary
goal
this
is
systematic
understanding
how
enhance
performance
stimulate
catalysts
future.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(45)
Published: Oct. 28, 2024
Abstract
High‐current‐density
water
electrolysis
is
considered
a
promising
technology
for
industrial‐scale
green
hydrogen
production,
which
of
significant
value
to
energy
decarbonization
and
numerous
sustainable
industrial
applications.
To
date,
substantial
research
advancements
are
achieved
in
catalyst
design
laboratory‐based
electrolysis.
While
the
designed
catalysts
demonstrate
remarkable
performance
at
low
current
densities,
they
suffer
from
marked
deteriorations
both
activity
long‐term
stability
under
industrial‐level
high‐current‐density
operations.
provide
timely
assessment
that
helps
bridge
gap
between
laboratory‐scale
fundamental
practical
technology,
here
various
commercial
electrolyzers
first
systematically
analyzed,
then
key
parameters
including
work
temperature,
density,
lifetime
stacks,
cell
efficiency,
capital
cost
stacks
critically
evaluated.
In
addition,
impact
high
density
on
electrocatalytic
behavior
catalysts,
intrinsic
activity,
stability,
mass
transfer,
discussed
advance
design.
Therefore,
by
covering
range
critical
issues
material
principles
parameters,
future
directions
development
highly
efficient
low‐cost
presented
procedure
screening
laboratory‐designed
outlined.
