The
rise
of
wearable
and
implantable
microelectronics
calls
for
the
corresponding
high‐performance
micropower
sources.
Rechargeable
micro‐batteries
(MBs)
are
considered
most
promising
candidate
due
to
their
high
energy
density
stable
voltage
output.
To
date,
various
MBs
with
different
configurations
have
been
designed
meet
ever‐growing
consumption
requirements
microelectronic
devices.
Therefore,
it
is
very
urgent
summarize
current
challenges
discuss
solutions
future
research.
In
this
perspective,
a
comprehensive
overview
insights
on
rechargeable
carefully
presented
an
emphasis
design
configurations.
representative
preparation
methods
application
scenarios
summarized.
perspectives
also
discussed
provide
into
forward‐looking
research
potential
directions
field.
Advanced Materials,
Год журнала:
2024,
Номер
36(26)
Опубликована: Фев. 20, 2024
Abstract
The
rational
construction
of
highly
active
and
durable
oxygen‐reactive
electrocatalysts
for
oxygen
reduction/evolution
reaction
(ORR/OER)
plays
a
critical
role
in
rechargeable
metal‐air
batteries.
It
is
pivotal
to
achieve
optimal
utilization
electrocatalytically
sites
valid
control
the
high
specific
internal
surface
area.
Inspiration
designing
can
come
from
nature,
as
it
full
precisely
manipulated
efficient
structures.
Herein,
inspired
by
earthworms
fertilizing
soil,
3D
carbon
nanofibrous
electrocatalyst
with
multiple
interconnected
nanoconfined
channels,
cobalt‐based
heterojunction
particles
enriched
N,
S
heteroatoms
(Co/Co
3
O
4
/CoF
2
@NSC
confined
channels)
rationally
designed,
showing
superior
bifunctional
electrocatalytic
activity
alkaline
electrolyte,
even
outperforming
that
benchmark
Pt/C‐RuO
catalyst.
This
work
demonstrates
new
method
porous
structural
regulation,
which
channels
within
nanofibers
are
controllably
formed
spontaneous
migration
nanoparticles
under
CO
atmosphere.
Theoretical
analysis
reveals
constructing
Co/Co
greatly
adjust
electron
distribution,
effectively
lower
barrier
inter‐mediate
reduce
OER/ORR
overpotential.
introduces
novel
nature‐inspired
strategy
well‐designed
architectures.
Green Carbon,
Год журнала:
2024,
Номер
2(2), С. 221 - 230
Опубликована: Апрель 1, 2024
The
rational
design
of
Fe-N-C
catalysts
that
possess
easily
accessible
active
sites
and
favorable
mass
transfer,
which
are
usually
determined
by
the
structure
catalyst
supports,
is
crucial
for
oxygen
reduction
reaction
(ORR).
In
this
study,
an
oleic
acid-assisted
soft-templating
approach
developed
to
synthesize
size-controlled
nitrogen-doped
carbon
nanoparticles
(ranging
from
130
nm
60
35
nm,
respectively)
feature
spiral
mesopores
on
their
surface
(SMCs).
Next,
atomically
dispersed
Fe-Nx
fabricated
size-tunable
SMCs
(Fe1/SMC-x,
where
x
represents
SMC
size)
size-dependent
activity
toward
ORR
investigated.
It
found
catalytic
performance
Fe1/SMCs
significantly
influenced
size
SMCs,
Fe1/SMC-60
shows
highest
with
a
half-wave
potential
0.90
V
vs.
RHE
in
KOH
electrolyte,
indicating
gas-liquid-solid
three-phase
interface
enhances
accessibility
sites.
addition,
when
using
as
cathode
aqueous
zinc-air
batteries
(ZABs),
it
delivers
higher
open-circuit
voltage
(1.514
V),
greater
power
density
(223
mW
cm-2),
larger
specific
capacity/energy
than
Pt/C-based
counterparts.
These
results
further
highlight
practical
energy
devices
associated
importance
synthesis
SMCs.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(29)
Опубликована: Фев. 20, 2024
Abstract
Rechargeable
Zn‐based
batteries
provide
a
compelling
supplement
to
subsistent
energy
storage
devices
owing
their
high
density,
good
safety,
and
low
cost.
Nevertheless,
inherent
imperfections
such
as
dendrite
growth,
side
reactions,
andante
reaction
kinetics,
severely
impede
commercialization.
As
new
0D
nanomaterials,
carbon
dots
(CDs)
with
unique
characteristics
excellent
electrochemical
activity,
exhibit
promising
potential
exploitation
in
electrochemistry
electrocatalysis
areas.
Herein,
the
adhibition
of
CDs
resolving
aforementioned
drawbacks
is
introduced.
To
begin
with,
concepts,
physicochemical
properties,
synthetic
methods
are
discussed.
Next,
recent
developments
advances
exploiting
respectively
ameliorating
performance
Zn
anode,
cathode,
electrolytes
ion
bifunctional
electrocatalytic
activities
including
oxygen
reduction
evolution
for
Zn‐air
batteries,
roundly
reviewed
minutely
generalized.
Finally,
current
challenges
prospects
surveyed
well,
aiming
offer
reference
blossom
advanced
batteries.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 7, 2025
Abstract
Designing
single‐atom
catalysts
(SACs)
with
high
density
of
accessible
sites
by
improving
metal
loading
and
utilization
is
a
promising
strategy
to
boost
the
catalytic
activity,
but
remains
challenging.
Herein,
site
(SD)
iron
SAC
(D‐Fe‐N/C)
11.8
wt.%
Fe‐loading
reported.
The
in
situ
scanning
electrochemical
microscopy
technique
attests
that
active
SD
D‐Fe‐N/C
reach
as
1.01
×
10
21
g
−1
79.8%,
respectively.
Therefore,
demonstrates
superior
oxygen
reduction
reaction
(ORR)
activity
terms
half‐wave
potential
0.918
V
turnover
frequency
0.41
e
s
.
excellent
ORR
property
also
demonstrated
liquid
zinc‐air
batteries
(ZABs),
which
exhibit
peak
power
306.1
mW
cm
−2
an
ultra‐long
cycling
stability
over
1200
h.
Moreover,
solid‐state
laminated
ZABs
prepared
presetting
air
flow
layer
show
specific
capacity
818.8
mA
h
,
520
h,
wide
temperature‐adaptive
from
−40
60
°C.
This
work
not
only
offers
possibilities
metal‐loading
for
exploring
efficient
SACs,
provides
strategies
device
structure
design
toward
advanced
ZABs.
Journal of Materials Chemistry A,
Год журнала:
2022,
Номер
10(31), С. 16369 - 16389
Опубликована: Янв. 1, 2022
This
paper
discusses
the
challenges
and
solutions
for
zinc–air
batteries
in
practical
mass
production
applications
provides
a
more
reasonable
structure
power
batteries.
Advanced Materials,
Год журнала:
2022,
Номер
34(34)
Опубликована: Июль 4, 2022
Significant
challenges
remain
in
developing
rechargeable
zinc
batteries
mainly
because
of
reversibility
problems
on
zinc-metal
anodes.
The
dendritic
growth
and
hydrogen
evolution
electrodes
are
major
obstacles
to
overcome
practical
safe
batteries.
Here,
a
dendrite-free
hydrogen-free
Zn-metal
anode
with
high
Coulombic
efficiency
up
99.6%
over
300
cycles
is
realized
newly
designed
nonaqueous
electrolyte,
which
comprises
an
inexpensive
salt,
acetate,
green
low-cost
solvent,
dimethyl
sulfoxide.
Surface
transformation
Cu
substrate
plays
critical
role
facilitating
the
deposition
process,
lowers
diffusion
energy
barrier
Zn
atoms,
leading
uniform
compact
thin
film
for
plating.
Furthermore,
situ
electrochemical
atomic
force
microscopy
reveals
plating
process
via
layer-by-layer
mechanism
stripping
through
edge-dissolution
mechanism.
In
addition,
Zn||Mo6
S8
full
cells
exhibit
excellent
performance
terms
cycling
stability
rate
capability.
This
work
presents
new
opportunity
develop
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(9)
Опубликована: Дек. 8, 2023
Abstract
Fe
single‐atom
catalysts
(SACs)
are
a
promising
catalyst
for
oxygen
reduction
reaction
(ORR)
in
both
Zn–air
batteries
(ZABs)
but
have
certain
distance
to
compete
with
Pt‐based
catalysts.
Rational
modulation
of
the
coordination
environment
second
shell
SACs
offers
an
opportunity
improve
intrinsic
ORR
activity,
yet
challenge.
Here,
novel
strategy
is
reported
construct
dual‐metal
by
introducing
single
Co
atom
center.
The
N
3
─Fe─N─Co
site
Fe─Co
0.312
nm
constructed.
It
allows
manipulation
positive
shift
center
charge
state,
driving
d
‐band
up‐shift
0.63
eV,
thereby
offering
optimal
adsorption
intermediates.
Benefiting
from
this
structure,
as‐prepared
Fe(Co
2nd
)‐NC
enables
excellent
activity
half‐wave
potential
0.948
V
0.1
M
KOH.
As
cathode
ZABs,
it
delivered
outstanding
peak
power
density
218
mW
cm
−2
and
specific
capacity
915
mAh
g
Zn
−1
at
5
mA
,
respectively,
superior
long‐term
durability
over
680
h.
layer
alignment
regulation
shows
great
energy
storage
applications.
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(41)
Опубликована: Сен. 24, 2023
Abstract
Rational
design
of
heterogeneous
catalysts
with
unique
structural
and
electronic
properties
is
one
the
major
challenges
to
improve
activity
toward
reversible
oxygen
reduction
reaction
(ORR)
evolution
(OER),
bottleneck
in
construction
air
cathodes
for
next‐generation
flexible
zinc–air
batteries
(ZABs).
Herein,
density
functional
theory
calculations
are
combined
experimental
attempts
exploit
roles
effects
at
interface
between
Co
4
N
nanoparticles
nitrogen‐doped
carbon
nanowalls/diamond
(d‐NCNWs/D)
ORR
OER
activities.
The
vacancy
defect‐induced
Co‐pyridinic
N─C
bond
optimizes
structure
3d
orbitals
balances
adsorption
energies
intermediates
along
pathways.
Consequently,
as‐synthesized
N@d‐NCNWs/D
composites
exhibit
superior
bifunctional
catalytic
activity.
overpotential
as
low
340
mV
10
mA
cm
−2
high
half‐wave
potential
reaches
0.83
V
ORR.
As
a
binder‐free
ZABs
cathode,
this
composite
exhibits
an
open
circuit
voltage
1.41
excellent
bendable
stability,
proving
its
promising
assembly
wearable
devices.
This
work
offers
theoretical
evidence
controllable
strategy
high‐performance
ZAB
their
application
smart
