The
construction
of
cost-effective
electrocatalysts
with
remarkable
activity
and
durability
for
the
urea
oxidation
reaction
(UOR)
is
urgently
needed
to
achieve
sustainable
hydrogen
production.
Herein,
a
three-dimensional
(3D)
nanostructure
uniform
NiSe2/MoSe2
Mott-Schottky
heterojunction
nanoneedle
arrays
densely
grown
on
carbon
cloth
was
designed
fabricated
by
hydrothermal
method
followed
selenization
treatment.
In
UOR
process,
undergoes
surface
reconstruction
into
Mo-NiOOH/NiSe2
composite
structure,
Mo-doping
can
optimize
adsorption/desorption
intermediates.
evolution
(HER)
directed
electron
transfer
brought
modulate
electronic
structure
d-band
center,
thus
promoting
HER.
well-designed
as
bifunctional
catalyst
urea-assisted
electrolysis
reach
10
mA
cm-2
at
only
1.44
V
almost
no
performance
degradation
48
h.
This
work
provides
promising
avenue
develop
efficient
HER/UOR
catalysts
toward
water
electrolysis.
Batteries & Supercaps,
Год журнала:
2024,
Номер
7(11)
Опубликована: Авг. 15, 2024
Abstract
Rechargeable
Zn‐air
batteries
offer
the
advantages
of
environmental
friendliness,
safety,
low
prices
and
high
energy
density,
are
highly
valued.
However,
major
challenge
faced
by
rechargeable
nowadays
is
efficiency
due
to
slow
reaction
kinetics
electrocatalyst
at
air
cathode.
Bifunctional
catalysts
key
development
improving
their
overall
performance
long‐term
cycling
stability.
Metal‐organic
framework
(MOF)
materials
have
shown
great
benefits
as
oxygen
electrocatalysts
in
promoting
reduction
(ORR)
evolution
(OER).
This
paper
reviews
recent
advances
three
kinds
MOF
bifunctional
for
batteries.
Additionally,
this
also
discusses
synthetic
design
strategy
composite
derivatives,
concludes
suggesting
application
field
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(31), С. 11628 - 11637
Опубликована: Июль 21, 2024
In
recent
decades,
there
has
been
significant
interest
in
eco-friendly
hydrogen
production
from
seawater
electrolysis.
However,
the
corrosive
nature
of
Cl–
on
metal
substrates
prevents
Ni–Fe
layered
hydroxides
(NiFe-LDH)
being
catalysts
for
direct
use
this
study,
a
NiFe-LDH
attached
to
copper
nanowire
arrays
with
synergistic
decoration
cerium
dioxide
(CeO2)
nanoparticles
and
cationic
defects
was
synthesized.
It
requires
only
208
230
mV
overpotentials
under
1
M
KOH
alkali
wild
100
mA·cm–2.
Moreover,
catalyst
is
capable
functioning
at
400
mA·cm–2
natural
seawater,
retention
rate
99%
80
h.
Results
theoretical
experimental
analyses
indicate
that
Ce–O–Ni
unit
formed
by
cation
anchoring
CeO2
particles
promotes
charge
transfer
CeO2,
which
greatly
reduces
adsorption
energy
OER
active
intermediates.
The
hard
soft
acid-based
(HSAB)
theory
states
selective
binding
OH–
high-valence
Ni
responsible
improvement
stability
selectivity.
This
research
aims
outline
key
considerations
developing
high-efficiency
electrolysis
catalysts.
Journal of Materials Chemistry A,
Год журнала:
2023,
Номер
11(45), С. 24618 - 24628
Опубликована: Янв. 1, 2023
Interface
microenvironment
regulation
provides
a
new
direction
for
designing
efficient
heterostructure
electrocatalysts
to
produce
sustainable
green
hydrogen
through
water
splitting.
Inorganic Chemistry,
Год журнала:
2024,
Номер
63(20), С. 9265 - 9274
Опубликована: Май 9, 2024
Creating
affordable
electrocatalysts
and
understanding
the
real-time
catalytic
process
of
urea
oxidation
reaction
(UOR)
are
crucial
for
advancing
urea-based
technologies.
Herein,
a
Cu-Ni
based
selenide
electrocatalyst
(CuSe
Inorganic Chemistry Frontiers,
Год журнала:
2023,
Номер
10(19), С. 5668 - 5677
Опубликована: Янв. 1, 2023
The
doping
of
low-electronegative
Fe
changes
the
charge
distribution
Co
sites
as
well
downshifts
d-band
center
to
reduce
binding
barrier
between
and
*OH.
Inorganic Chemistry Frontiers,
Год журнала:
2023,
Номер
10(21), С. 6320 - 6328
Опубликована: Янв. 1, 2023
Ga-NiFe
2
O
4
is
fabricated
by
a
straightforward
hydrothermal
method
and
exhibits
outstanding
OER
electroactivity
with
low
overpotential
excellent
stability
over
an
electrolysis
period
of
48
h
even
at
high
current
density
400
mA
cm
−2
.
