ACS Applied Nano Materials,
Journal Year:
2023,
Volume and Issue:
6(11), P. 9816 - 9824
Published: June 1, 2023
The
progress
of
highly
efficient
and
stable
nonprecious
metallic-based
electrocatalysts
for
the
hydrogen
evolution
reaction
(HER)
in
saline
water/seawater
is
great
importance
mass-scale
production
energy.
Herein,
a
nanostructured
NiFe-LDH/Cu2S
heterostructure
constructed
by
growing
NiFe-LDH
nanosheets
onto
Cu2S
nanorods.
This
possesses
exceptional
HER
performances
with
η10
=
36
mV
(η10
indicates
overpotential
at
current
density
10
mA
cm2)
worked
stably
over
100
h
alkaline
water.
Moreover,
heterojunction
catalyst
acts
as
bifunctional
electrocatalyst
anode
cathode,
achieving
cell
voltage
1.463
V,
which
superior
to
many
reported
electrocatalysts.
improvement
catalytic
performance
can
be
ascribed
charge
redistribution
on
heterointerface
that
accelerates
dissociation
process
caused
formation
Ni
low
electron
cloud
density.
obtained
covalent
S–O
bonds
are
beneficial
adsorption
H*.
In
addition,
also
exhibits
considerable
seawater
electrolytes,
delivering
1.483
V
stability
27
h.
We
present
promising
water
electrolysis
may
find
wide
applications
area
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(46)
Published: Oct. 27, 2023
Abstract
Buckminsterfullerene
(C
60
)
and
derivatives
are
significant
in
the
synthesis
of
efficient
electrocatalysts
photocatalysts.
This
is
because
electron
acceptor
properties
distinctive
heterostructure(s)
physicochemical
characteristics.
High‐performance
photocatalysts
important
therefore
conversions
for
clean
energy.
Here
a
critical
assessment
advances
use
C
as
heterostructures
“electron
buffers”
catalysts
reported.
Methodologies
preparing
composite
assessed
categorized
microscopic
mechanisms
boosting
catalytic
performance
through
materials
including,
semiconductors,
carbon‐based
metal‐free
materials,
metal
nanoclusters,
single
atoms,
metal–organic
skeletons
established.
Important
characterizations
used
with
derivative
composites
contrasted
practical
challenges
to
development
determined.
A
prospective
on
future
directions
likely
outcomes
high
efficiency
provided.
It
concluded
that
advantageous
advanced
structural
integrity
boosted
transport.
The
findings
expected
be
interest
benefit
researchers
manufacturers
formation
buffer
areas
significantly
performance.
ChemSusChem,
Journal Year:
2024,
Volume and Issue:
17(16)
Published: March 25, 2024
Abstract
The
development
of
low‐cost
transition
metal
compounds
with
high‐performance
for
efficient
oxygen
evolution
reaction
(OER)
is
great
significance
in
promoting
the
electrocatalysis.
In
this
study,
a
Ce‐doped
Ni
3
S
4
catalyst
(Ce
0.2
−Ni
)
was
synthesized
through
one‐step
solvothermal
method,
where
doped
rare
earth
element
Ce
induced
transformation
NiS
to
.
exhibited
excellent
OER
performance
1
M
KOH.
At
current
density
10
mA
cm
−2
,
it
showed
low
overpotential
230
mV
and
Tafel
slope
52.39
dec
−1
Long‐term
tests
at
same
potential
lasted
24
h
without
significant
loss
density.
This
work
introduces
novel
method
doping
modifying
sulfides,
providing
new
insights
into
effective
utilization
elements
field
electrochemistry.
It
creates
more
chances
progress
highly
catalysts
OER,
contributing
advancement
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 24, 2024
Direct
recycling
is
considered
to
be
the
next-generation
technology
for
spent
lithium-ion
batteries
due
its
potential
economic
benefits
and
environmental
friendliness.
For
layered
oxide
cathode
materials,
an
irreversible
phase
transition
a
rock-salt
structure
near
particle
surface
impedes
reintercalation
of
lithium
ions,
thereby
hindering
compensation
process
from
fully
restoring
composition
defects
repairing
failed
structures.
We
introduced
transition-metal
hydroxide
precursor,
utilizing
catalytic
activity
produced
during
annealing
convert
into
that
provides
fast
migration
pathways
ions.
The
material
repair
synthesis
processes
share
same
heating
program,
enabling
added
precursor
undergo
topological
transformation
form
targeted
oxide.
This
regenerated
exhibits
performance
superior
commercial
cathodes
maintains
88.4%
initial
capacity
after
1000
cycles
in
1.3
Ah
pouch
cell.
Techno-economic
analysis
highlights
advantages
over
pyrometallurgical
hydrometallurgical
methods,
indicating
practical
application.
