Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Июнь 1, 2025
Abstract
Rechargeable
zinc–air
batteries
(ZABs)
are
hindered
by
substantial
voltage
hysteresis
and
limited
cycling
stability.
To
address
these
challenges,
a
dual‐innovation
strategy
is
developed
through
synergistic
electrolyte
engineering
catalyst
design.
First,
implemented
the
incorporation
of
KI
into
electrolyte,
transforming
conventional
ZABs
zinc–air/iodide
hybrid
(ZAIHBs).
This
modification
replaces
oxygen
evolution
reaction
(OER)
with
iodine
oxidation
(IOR),
which
operates
at
significantly
reduced
overpotential.
Second,
FePc@CoSAs/NC
constructed
anchoring
iron
phthalocyanine
(FePc)
on
Co
single‐atom/N‐doped
carbon
substrates.
exhibiting
half‐wave
potential
0.89
V
for
ORR
achieving
1.26
10
mA
cm
−2
IOR
record‐low
ORR/IOR
gap
0.37
V.
The
optimized
ZAIHBs
demonstrate
exceptional
energy
efficiency
75%
stability
(73.5%
retention
over
350
h),
surpassing
ZABs.
Density
functional
theory
calculations
reveal
that
Co–Fe
dual‐site
coordination
optimizes
adsorption
energetics
critical
intermediates
(OH*
in
I*
IOR),
elucidating
enhanced
kinetics.
work
establishes
co‐design
paradigm
high‐performance
systems
integrated
engineering.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 5, 2025
Abstract
Limited
by
the
activity‐selectivity
trade‐off
relationship,
electrochemical
activation
of
small
molecules
(like
O
2
,
N
2,
and
CO
)
rapidly
diminishes
Faradaic
efficiencies
with
elevated
current
densities
(particularly
at
ampere
levels).
Nevertheless,
some
catalysts
can
circumvent
this
restriction
in
a
two‐electron
oxygen
reduction
reaction
(2e
−
ORR),
sustainable
pathway
for
activating
to
hydrogen
peroxide
(H
).
Here
we
report
2e
ORR
expedited
fluorine‐bridged
copper
metal–organic
framework
catalyst,
arising
from
water
spillover
effect.
Through
operando
spectroscopies,
kinetic
theoretical
characterizations,
it
demonstrates
that
under
neutral
conditions,
plays
dual
role
accelerating
dissociation
stabilizing
key
*
OOH
intermediate.
Benefiting
spillover,
catalyst
expedite
density
range
0.1–2.0
A
cm
−2
both
high
(99–84.9%)
H
yield
rates
(63.17–1082.26
mg
h
−1
Further,
feasibility
present
system
has
been
demonstrated
scaling
up
unit
module
cell
25
combination
techno‐economics
simulations
showing
production
cost
strongly
dependent
on
densities,
giving
lowest
price
$0.50
kg
2.0
.
This
work
is
expected
provide
an
additional
dimension
leverage
systems
independent
oftraditional
rules.
Chemical Science,
Год журнала:
2024,
Номер
15(45), С. 18715 - 18750
Опубликована: Янв. 1, 2024
The
construction
of
functional
structures
within
a
single
plane
still
has
lot
challenges.
This
review
article
will
help
us
find
new
groundbreaking
directions
in
lateral
nanoarchitectonics
toward
advanced
material
organization.
Chemical Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Utilizing
double
coordination
shell
modulation,
we
construct
a
novel
nitrogen-free
single-atom
manganese
configuration
catalyst
on
graphene
oxide
(Mn–S
1
O
4
G),
which
exhibits
excellent
ORR
and
zinc–air
battery
performances.
Chemical Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
The
dynamic
evolution
of
a
core–shell
catalyst
(M@C)
is
revealed
via
computations
and
experiments,
showing
that
metal
atoms
diffuse
to
form
M–N–C
sites,
which
are
highly
active
capable
regenerating
for
oxygen
reduction
reactions.
The Journal of Physical Chemistry Letters,
Год журнала:
2025,
Номер
unknown, С. 1629 - 1633
Опубликована: Фев. 5, 2025
Redox
processes
that
involve
pairs
of
electrons
are
common
in
nature.
Some
these
reactions
oxygen
molecules.
The
understanding
the
efficiency
reduction
reaction
(ORR),
for
example,
is
a
challenge
since
spin
forbidden
and
requires
transfer
two
electrons.
Past
experimental
theoretical
studies
demonstrated
by
controlling
transferred
electrons,
it
possible
to
overcome
barrier
resulting
from
mismatch
between
reactants
products.
In
other
works,
was
suggested
enhanced
if
each
pair
have
phase
relation,
namely,
they
possess
property
triplet
state.
Since
nature
through
chiral
systems,
we
probed
chirality
affects
formation
paired
with
same
spin,
like
model
calculations
demonstrate
enhances
probability
electron
pairing
states,
even
at
room
temperature.
This
enhancement
originates
breaking
degeneracy,
enabled
interaction
spins
vibrations.
Chemical Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Through
dynamic
Se
leaching
and
phase
transition
during
HOR
process,
the
obtained
Pt–Se
catalyst
with
surface-decorated
atoms
regulates
water
structure
accelerates
OH
migration,
thereby
boosting
performance.
