Advanced Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 24, 2024
The
rational
design
of
multicomponent
heterostructure
is
an
effective
strategy
to
enhance
the
catalytic
activity
electrocatalysts
for
water
and
seawater
electrolysis
in
alkaline
conditions.
Herein,
MOF-derived
nitrogen-doped
carbon/nickel-cobalt
sulfides
coupled
vertically
aligned
Rhenium
disulfide
(ReS
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 12, 2025
Although
solar
steam
generation
is
effective
in
evaporating
water
and
seawater
under
light
irradiation,
it
ineffective
purifying
wastewater
with
organic
pollutants.
Herein,
a
morning
glory-shaped
purification
device
dry
chimney
(pistil)
designed
for
simultaneous
solar-thermal
evaporation
of
catalytic
degradation
pollutants
therein,
which
fabricated
by
decorating
Au/CoFe2O4/carbon
nanotube
functional
components
on
hydrophilic
porous
bamboo
fabric
substrate.
Au
CoFe2O4
are
capable
forming
Mott–Schottky
heterostructures
to
create
stable
built-in
electric
field
promote
the
separation
electron–hole
pairs,
thereby
facilitating
activation
potassium
peroxymonosulfate
generate
reactive
oxygen
species
achieving
high
rate
constant
0.222
min–1
1-sun
irradiation.
Crucially,
bionic
glory
structure
benefits
continuous
supply
air
creates
airflow
circulation,
reducing
humidity
increasing
escape
saturated
vapor
from
evaporator,
3.21
kg
m–2
h–1
A
total
as
28.21
realized
therein.
The
integration
enables
an
efficient
protocol
ACS Materials Letters,
Год журнала:
2024,
Номер
6(9), С. 3970 - 3976
Опубликована: Июль 29, 2024
Developing
efficient
and
stable
electrocatalysts
for
the
hydrogen
evolution
reaction
(HER)
is
crucial
to
achieve
effective
electrolytic
production
from
seawater.
Hydrogen
spillover
enhances
catalytic
performance
by
facilitating
migration
of
species
between
different
sites,
improving
efficiency
kinetics
in
HER.
Herein,
we
report
hydrothermal-phosphatization-immersion
synthesis
Pd-decorated
CoP
nanoneedle
arrays
on
nickel
foam
(Pd@CoP/NF)
as
a
highly
active
HER
electrocatalyst
toward
alkaline
seawater
reduction.
In
situ
electrochemical
impedance
spectroscopy
kinetic
isotope
effects
reveal
Pd@CoP/NF's
extensive
adsorption
enhanced
transfer
rates.
seawater,
such
Pd@CoP/NF
exhibits
outstanding
with
low
overpotential
249
mV
at
current
density
1000
mA
cm–2
long-term
stability
500
h.
The
construction
of
an
efficient
and
durable
oxygen
evolution
reaction
(OER)
electrocatalyst
through
a
simple
synthesis
strategy
is
crucial
for
the
hydrogen
produced
from
seawater
splitting.
However,
achieving
this
goal
remains
great
challenge.
Herein,
amorphous
Fe-doped
nickel
phosphate
(Fe-NixPO4)
as
high-performance
OER
electrocatalysts
alkaline
freshwater/seawater
splitting
presented
using
straightforward
co-precipitation
method
at
room-temperature.
Experimental
results
reveal
structural
reconstruction
Fe-NixPO4
into
NiOOH
decorated
with
PO4
3-.
collaborative
interplay
between
Ni2+
Fe3+,
along
decoration
3-,
can
effectively
modulate
electronic
environment
electrocatalyst.
Consequently,
optimized
exhibits
exceptional
activity,
requiring
overpotentials
359
422
mV
to
generate
1000
mA
cm-2
in
freshwater
seawater,
respectively.
Moreover,
also
displays
outstanding
stability
100
h
seawater.
This
research
presents
viable
approach
fabricating
efficiency
electrolysis.