SusMat,
Год журнала:
2023,
Номер
4(1), С. 106 - 115
Опубликована: Окт. 19, 2023
Abstract
Ruthenium
(Ru)
has
been
recognized
as
a
prospective
candidate
to
substitute
platinum
catalysts
in
water‐splitting‐based
hydrogen
production.
However,
minimizing
the
Ru
contents,
optimizing
water
dissociation
energy
of
sites,
and
enhancing
long‐term
stability
are
extremely
required,
but
still
face
great
challenge.
Here,
we
report
on
creating
tungsten
oxide‐anchored
clusters
(Ru–WO
x
)
with
electron‐rich
anti‐corrosive
microenvironments
for
efficient
robust
seawater
splitting.
Benefiting
from
abundant
oxygen
vacancy
structure
oxide
support,
Ru–WO
exhibits
strong
Ru–O
Ru–W
bonds
at
interface.
Our
study
elucidates
that
may
accelerate
kinetics,
will
lead
metal–support
interaction
electrons
transfer
W
Ru.
The
optimal
exhibit
low
overpotential
29
218
mV
current
density
10
mA
cm
−2
alkaline
media,
respectively.
outstanding
discloses
own
corrosion
resistance
electrolysis.
We
believe
this
work
offers
new
insights
into
essential
roles
Ru‐based
provide
pathway
design
cathodes
Abstract
Aqueous
alkaline
rechargeable
nickel‐zinc
(Ni–Zn)
batteries
possess
great
potential
for
large‐scale
energy
storage
systems
because
of
their
high
output
voltage,
cheap
cost,
and
intrinsic
safety.
However,
the
practical
applicability
Ni–Zn
has
been
limited
by
traditional
Ni‐based
cathodes
with
low
capacity
poor
cycle
stability.
Rational
design
electrode
structure
composition
is
highly
desired
but
still
significantly
challenging.
Herein,
uniform
self‐supported
hierarchical
heterostructure
composites
interacting
NiCo‐layered
double
hydroxide
1D
nickel
sulfides
heteronanowire
rooted
on
Ni
foam
(NF\Ni
3
S
2
/NiS@NiCo‐LDH)
are
successfully
developed
a
hydrothermal
sulfurization‐electrodeposition
process.
The
3D
heterostructured
nanoarray
provides
abundant
reactive
sites,
rapid
ion
diffusion
channels,
fast
electron
transfer
routes,
as
well
strong
structural
More
significantly,
interfacial
charge
between
/NiS
NiCo‐LDH
effectively
modifies
electronic
thereby
improving
reaction
kinetics.
Consequently,
NF\Ni
/NiS@NiCo‐LDH
presents
superior
434.5
mAh
g
−1
(1.73
cm
−2
)
at
mA
.
In
addition,
fabricated
/NiS@NiCo‐LDH//Zn
battery
can
offer
maximal
density
power
large
556.3
Wh
kg
26.3
kW
,
respectively,
an
exceptional
cycling
performance.
SusMat,
Год журнала:
2023,
Номер
4(1), С. 106 - 115
Опубликована: Окт. 19, 2023
Abstract
Ruthenium
(Ru)
has
been
recognized
as
a
prospective
candidate
to
substitute
platinum
catalysts
in
water‐splitting‐based
hydrogen
production.
However,
minimizing
the
Ru
contents,
optimizing
water
dissociation
energy
of
sites,
and
enhancing
long‐term
stability
are
extremely
required,
but
still
face
great
challenge.
Here,
we
report
on
creating
tungsten
oxide‐anchored
clusters
(Ru–WO
x
)
with
electron‐rich
anti‐corrosive
microenvironments
for
efficient
robust
seawater
splitting.
Benefiting
from
abundant
oxygen
vacancy
structure
oxide
support,
Ru–WO
exhibits
strong
Ru–O
Ru–W
bonds
at
interface.
Our
study
elucidates
that
may
accelerate
kinetics,
will
lead
metal–support
interaction
electrons
transfer
W
Ru.
The
optimal
exhibit
low
overpotential
29
218
mV
current
density
10
mA
cm
−2
alkaline
media,
respectively.
outstanding
discloses
own
corrosion
resistance
electrolysis.
We
believe
this
work
offers
new
insights
into
essential
roles
Ru‐based
provide
pathway
design
cathodes
