Abstract
The
creation
of
highly
efficient
and
economical
electrocatalysts
is
essential
to
the
massive
electrolysis
water
produce
clean
energy.
ability
use
urea
reaction
oxidation
(UOR)
in
place
oxygen/hydrogen
evolution
process
(OER/HER)
during
splitting
a
significant
step
toward
production
high‐purity
hydrogen
with
less
energy
usage.
Empirical
evidence
suggests
that
UOR
consists
two
stages.
First,
metal
sites
undergo
an
electrochemical
pre‐oxidation
reaction,
then
molecules
on
high‐valence
are
chemically
oxidized.
Here,
scandium‐doped
CoTe
supported
carbon
nanotubes
called
Sc@CoTe/CNT
reported
CoTe/CNT
as
composite
efficiently
promote
generation
from
durable
active
for
OER/UOR/HER
alkali
solutions.
Electrochemical
impedance
spectroscopy
indicates
facilitates
charge
transfer
across
interface.
Furthermore,
nanocatalyst
has
high
performance
KOH
KOH‐containing
solutions
demonstrated
by
HER,
OER,
(215
mV,
1.59,
1.31
V,
respectively,
at
10
mA
cm
−2
1
m
KOH)
shows
195
1.61
1.3
respectively.
Consequently,
total
system
achieves
1.29
whereas
overall
device
obtaines
1.49
V
1.54,
1.48
This
work
presents
viable
method
combining
HER
maximally
effective
production.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Июль 5, 2024
Green
hydrogen
from
electrolysis
of
water
has
attracted
widespread
attention
as
a
renewable
power
source.
Among
several
production
methods,
it
become
the
most
promising
technology.
However,
there
is
no
large-scale
system
currently
that
can
compete
with
conventional
fossil
fuel
production.
Renewable
energy
electrocatalytic
splitting
an
ideal
technology
environmental
cleanliness
protection
and
good
purity,
which
meet
requirements
future
development.
This
review
summarizes
introduces
current
status
by
three
aspects:
electricity,
catalyst
electrolyte.
In
particular,
present
situation
latest
progress
key
sources
power,
catalytic
materials
electrolyzers
for
are
introduced.
Finally,
problems
generation
electrolytic
directions
next-generation
green
in
discussed
outlooked.
It
expected
this
will
have
important
impact
on
field
water.
Advanced Materials,
Год журнала:
2024,
Номер
36(25)
Опубликована: Апрель 3, 2024
Abstract
The
catalytic
activation
of
the
Li‐S
reaction
is
fundamental
to
maximize
capacity
and
stability
batteries
(LSBs).
Current
research
on
catalysts
mainly
focuses
optimizing
energy
levels
promote
adsorption
conversion,
while
frequently
overlooking
electronic
spin
state
influence
charge
transfer
orbital
interactions.
Here,
hollow
NiS
2
/NiSe
heterostructures
encapsulated
in
a
nitrogen‐doped
carbon
matrix
(NiS
@NC)
are
synthesized
used
as
additive
sulfur
cathodes.
heterostructure
promotes
splitting
3d
orbital,
driving
Ni
3+
transformation
from
low
high
spin.
This
configuration
raises
level
activates
state.
accelerates
optimizes
energy,
lowering
barrier
polysulfides
conversion.
Benefiting
these
characteristics,
LSBs
based
@NC/S
cathodes
exhibit
initial
(1458
mAh·g⁻
1
at
0.1C),
excellent
rate
capability
(572
5C),
stable
cycling
with
an
average
decay
only
0.025%
per
cycle
1C
during
500
cycles.
Even
loadings
(6.2
mg·cm⁻
),
capacities
1173
(7.27
mAh·cm⁻
)
measured
0.1C,
1058
retained
after
300
Advanced Materials,
Год журнала:
2024,
Номер
36(31)
Опубликована: Май 25, 2024
Beyond
optimizing
electronic
energy
levels,
the
modulation
of
spin
configuration
is
an
effective
strategy,
often
overlooked,
to
boost
activity
and
selectivity
in
a
range
catalytic
reactions,
including
oxygen
evolution
reaction
(OER).
This
frequently
accomplished
using
external
magnetic
fields,
which
makes
it
impractical
for
real
applications.
Herein,
achieved
by
engineering
Ni/MnFe
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(19), С. 7193 - 7208
Опубликована: Янв. 1, 2024
FeCoNiPdWP
exhibit
excellent
oxygen
evolution
and
reduction
reaction
performance
via
all
elements
playing
distinctive
roles
the
switchable
active
sites
in
redox
reactions,
leading
to
robust
zinc
air
batteries.
Abstract
Electrocatalytic
water
splitting
has
been
identified
as
a
potential
candidate
for
producing
clean
hydrogen
energy
with
zero
carbon
emission.
However,
the
sluggish
kinetics
of
oxygen
evolution
reaction
on
anode
side
water‐splitting
device
significantly
hinders
its
practical
applications.
Generally,
efficiency
processes
depends
greatly
availability
cost‐effective
catalysts
high
activity
and
selectivity.
In
recent
years,
extensive
theoretical
experimental
studies
have
demonstrated
that
cobalt
(Co)‐based
nanomaterials,
especially
low‐dimensional
Co‐based
nanomaterials
huge
specific
surface
area
abundant
unsaturated
active
sites,
emerged
versatile
electrocatalysts
reactions,
thus,
great
progress
made
in
rational
design
synthesis
electrocatalytic
reactions.
Considering
remarkable
this
area,
timely
review,
we
highlight
most
developments
relating
to
their
dimensional
control,
defect
regulation
(conductivity),
electronic
structure
regulation,
so
forth.
Furthermore,
brief
conclusion
about
achieved
well
an
outlook
future
research
challenges,
is
given.
