Intramolecular electron transfer for optimized coordination environment in bimetallic molecular electrocatalysts for flexible zinc-air battery applications
Journal of Energy Storage,
Год журнала:
2025,
Номер
118, С. 116335 - 116335
Опубликована: Март 21, 2025
Язык: Английский
Orderly Stacked “Tile” Architecture with Single‐Atom Iron Boosts Oxygen Reduction in Liquid and Solid‐State Zn–Air Batteries
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 23, 2025
Abstract
Oxygen
reduction
reaction
plays
a
crucial
role
in
energy‐related
devices.
However,
four‐electron
transfer
process
involved
this
is
usually
constrained
by
sluggish
kinetics.
Single
atomic
(SA)
Fe
catalysts
have
attracted
extensive
attention
due
to
the
high
atom
utilization,
yet
impact
of
support
architecture
on
accelerating
has
been
largely
overlooked.
Inspired
edge‐rich
and
ordered
tile
that
facilitates
rainwater
runoff,
an
orderly
stacked
“tile”
carbon
with
highly
dispersed
SA
doped
S
prepared
through
morphology‐persistent
conversion
new
metal–organic
framework
assembly.
The
catalyst
exhibits
higher
half‐wave
potential
0.91
V
0.1
M
KOH,
when
compared
Pt/C
atoms
lamellar
carbon.
This
because
kinetics
accelerated
while
weakens
Fe–O
interaction,
decreases
*OH
binding
strength.
Importantly,
catalyst,
working
at
air
cathodes,
powers
liquid
solid‐state
Zn–air
batteries
show
high‐power
density
remarkable
stability,
can
effectively
charge
mobile
phone.
work
not
only
provides
effective
but
also
highlights
importance
for
developing
advanced
catalysts.
Язык: Английский
A systematic investigation on the advantage of confinement effect by nitrogen doped carbon nanotubes for hydrogen evolution reaction
Journal of Colloid and Interface Science,
Год журнала:
2025,
Номер
unknown, С. 137667 - 137667
Опубликована: Апрель 1, 2025
Язык: Английский
Regulating electron effect by interface-induced dislocation in Fe2P/Fe to accelerate oxygen reduction reactions
Materials Today Physics,
Год журнала:
2025,
Номер
54, С. 101739 - 101739
Опубликована: Апрель 28, 2025
Язык: Английский
Spin‐State Manipulation of Atomic Manganese Center by Phosphide‐Support Interactions for Enhanced Oxygen Reduction
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 8, 2025
Oxygen
reduction
reaction
(ORR)
kinetics
are
closely
related
to
the
electronic
structure
of
active
sites.
Herein,
a
single-atomic
Mn
catalyst
decorated
with
adjacent
MoP
nanocrystals
(MoP@MnSAC-NC)
is
reported.
The
decoration
drives
transition
sites
from
low-spin
high-spin
states
through
an
phosphide-support
interaction.
rearranged
electron
occupation
in
3dxz-yz
and
3dz
2
orbitals
leads
electrons
occupying
σ
orbital
Mn─*O2,
thereby
favoring
O2
adsorption
initiate
ORR
mechanism.
In
situ
characterizations
confirm
that
state
can
activate
molecular
O₂
optimize
*OOH
intermediate.
As
result,
MoP@MnSAC-NC
displays
outstanding
alkaline
half-wave
potential
(E1/2
=
0.894
V),
excellent
peak
power
densities
(173/83
mW
cm-2
for
liquid/solid-state
Zn-air
batteries,
respectively),
long-term
stability
(840
h)
superior
commercial
Pt/C.
This
work
provides
profound
insights
into
spintronics-level
engineering,
guiding
design
next-generation
high-performance
catalysts.
Язык: Английский
Single‐Atom Ir Reserved in Lower Oxidation State by Divalent Iron for Efficient Alkaline Water Oxidation
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 8, 2025
Abstract
Ir
in
a
lower
oxidation
state
exhibits
superior
intrinsic
activity
for
oxygen
evolution
reaction
(OER)
due
to
its
low
Ir‐O
connectivity
alkaline
media.
However,
it
is
more
prone
being
oxidized
high
and
dissolving
inactivation
during
the
OER
process.
Herein,
single‐atom
dispersed
on
sea
urchin‐like
FeNi‐based
spinel
support
(NiFe
2
O
4
)
possessing
super‐hydrophilicity
super‐aerophobicity.
The
as‐prepared
Ir/NiFe
,
loading
of
only
0.087
mg
cm
−2
element,
shows
196
mV
overpotential
at
10
mA
can
work
stably
up
400
h
200
1
m
KOH
solution.
performance
surpasses
that
commercial
IrO
catalysts
most
currently
reported
Ir/Ru‐based
(SACs),
which
be
attributed
Fe
2+
acting
as
an
electron
reservoir,
maintaining
with
stability
Furthermore,
catalytic
interface
both
super‐aerophobicity,
not
facilitates
electron‐ion
coupling
transport
but
also
promotes
rapid
removal
generated
bubbles.
Язык: Английский
Surface reconstructed hollow Fe-doped CoOx(OH)y bifunctional electrocatalysts for rechargeable zinc–air batteries
Journal of Power Sources,
Год журнала:
2025,
Номер
647, С. 237391 - 237391
Опубликована: Май 17, 2025
Язык: Английский
Advances and Challenges in Designing Efficient NiFe‐Based Oxygen Electrocatalysts for Rechargeable Zn–Air Batteries
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 24, 2025
Abstract
Designing
cost‐effective
bifunctional
electrocatalysts
with
high
activity
claims
essential
features
for
accelerating
the
practical
application
process
of
rechargeable
Zn–air
batteries.
NiFe‐based
catalytic
materials
are
viable
candidates
electrocatalysts,
benefiting
from
abundant
reserves,
low
costs,
adjustable
electron
structures,
and
activities.
To
accelerate
industrialization
in
batteries,
it
is
necessary
to
systematically
explore
their
design
strategies
promoting
This
review
first
introduces
working
principle,
reaction
mechanism,
challenges
which
aim
understand
cathodic
catalyst
criteria.
Furthermore,
categorization
catalysts
illustrated
detail
introduce
strategy.
Based
on
understanding,
strategy
catalysts,
including
anionic
modification,
cation
doping,
supporting
effect,
embedding
multi‐component
construction,
summarized
boost
performance
batteries
sustained
stability.
Finally,
some
personal
insights
developing
proposed.
It
believed
that
this
can
offer
valuable
guiding
future
research
advancement
Язык: Английский