Deleted Journal,
Journal Year:
2023,
Volume and Issue:
2, P. e9120070 - e9120070
Published: May 5, 2023
Imposing
phase
engineering
to
porous
materials
is
promising
realize
outperforming
electrocatalytic
performances
by
taking
advantages
of
the
merits
nanoarchitecture
and
heterophase
structure.
In
this
work,
amorphous/crystalline
ruthenium
oxide
(RuO2)
particles
with
rationally
regulated
heterophases
are
successfully
prepared
integrating
into
material
synthesis.
The
resultant
defect-rich
RuO2
exhibit
excellent
performance
toward
oxygen
evolution
reaction,
achieving
a
low
overpotential
165
mV
at
current
density
10
mA·cm−2
high
mass
activity
up
133.8
200
mV.
This
work
indicates
that
synergistic
effect
structural
characteristics
enables
trigger
superior
activity.
Inorganic Chemistry,
Journal Year:
2023,
Volume and Issue:
62(20), P. 7976 - 7981
Published: May 5, 2023
Seawater
electrolysis
driven
by
renewable
electricity
is
deemed
a
promising
and
sustainable
strategy
for
green
hydrogen
production,
but
it
still
formidably
challenging.
Here,
we
report
an
iron-doped
NiS
nanosheet
array
on
Ni
foam
(Fe-NiS/NF)
as
high-performance
stable
seawater
splitting
electrocatalyst.
Such
Fe-NiS/NF
catalyst
needs
overpotentials
of
only
420
270
mV
at
1000
mA
cm-2
the
oxygen
evolution
reaction
in
alkaline
seawater,
respectively.
Furthermore,
its
two-electrode
electrolyzer
cell
voltage
1.88
V
with
50
h
long-term
electrochemical
durability
seawater.
Additionally,
situ
Raman
infrared
spectroscopy
were
employed
to
detect
reconstitution
process
NiOOH
generation
intermediates
under
conditions.
Small,
Journal Year:
2023,
Volume and Issue:
20(4)
Published: Sept. 13, 2023
Abstract
Developing
high‐efficiency
and
stable
oxygen
evolution
reaction
(OER)
electrocatalysts
is
an
imperative
requirement
to
produce
green
clean
hydrogen
energy.
In
this
work,
the
FeCoS
y
/NCDs
composite
with
nitrogen‐doped
carbon
dots
(NCDs)
modified
Fe–Co
sulfide
(FeCoS
)
nanosheets
prepared
by
using
a
facile
mild
one‐pot
solvothermal
method.
Benefiting
from
low
crystallinity
synergistic
effect
between
NCDs,
optimal
/NCDs‐3
exhibits
overpotential
of
only
284
mV
at
10
mA
cm
−2
,
small
Tafel
value
52.1
dec
−1
excellent
electrochemical
durability
in
alkaline
solution.
Remarkably,
unlike
ordinary
metal
electrocatalysts,
morphology,
components,
structure
can
be
well
retained
after
OER
test.
The
NCDs
electrocatalytic
performance
provides
effective
approach
boost
for
practical
application.
Deleted Journal,
Journal Year:
2023,
Volume and Issue:
2, P. e9120070 - e9120070
Published: May 5, 2023
Imposing
phase
engineering
to
porous
materials
is
promising
realize
outperforming
electrocatalytic
performances
by
taking
advantages
of
the
merits
nanoarchitecture
and
heterophase
structure.
In
this
work,
amorphous/crystalline
ruthenium
oxide
(RuO2)
particles
with
rationally
regulated
heterophases
are
successfully
prepared
integrating
into
material
synthesis.
The
resultant
defect-rich
RuO2
exhibit
excellent
performance
toward
oxygen
evolution
reaction,
achieving
a
low
overpotential
165
mV
at
current
density
10
mA·cm−2
high
mass
activity
up
133.8
200
mV.
This
work
indicates
that
synergistic
effect
structural
characteristics
enables
trigger
superior
activity.
