Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(4)
Published: Oct. 15, 2023
Abstract
Hard
carbon
(HC)
is
widely
regarded
as
the
most
promising
anode
material
for
sodium‐ion
batteries
(SIBs).
For
improving
sodium
storage
capacity
of
HC
anode,
current
research
primarily
focuses
on
high‐voltage
slope
region.
Actually,
increasing
capability
in
low‐voltage
plateau
region
more
important
enhancing
energy
density
full
cells.
Therefore,
this
study,
with
rich
closed
pore
structure
designed
and
constructed
help
dots
(CDs),
it
demonstrated
that
presence
can
provide
sites
region,
resulting
an
obvious
increase
capacity.
Moreover,
pore‐filling
intercalation
mechanism
revealed
by
situ
Raman
spectroscopy
ex
transmission
electron
microscopy
(TEM).
It
worth
noting
induced
not
accompanied
a
decrease
initial
coulombic
efficiency
(ICE),
due
to
fact
introduction
pores
does
contact
area
between
electrode
electrolyte.
This
work
presents
novel
concepts
structural
design
provides
valuable
insights
into
effective
utilization
SIBs.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(12)
Published: Jan. 15, 2024
Abstract
Developing
efficient
metal‐nitrogen‐carbon
(M‐N‐C)
single‐atom
catalysts
for
oxygen
reduction
reaction
(ORR)
is
significant
the
widespread
implementation
of
Zn‐air
batteries,
while
synergic
design
matrix
microstructure
and
coordination
environment
metal
centers
remains
challenges.
Herein,
a
novel
salt
effect‐induced
strategy
proposed
to
engineer
N
P
coordinated
atomically
dispersed
Fe
atoms
with
extra‐axial
Cl
on
interlinked
porous
carbon
nanosheets,
achieving
superior
catalyst
(denoted
as
Fe‐NP‐Cl‐C)
ORR
batteries.
The
hierarchical
nanosheet
architecture
can
provide
rapid
mass/electron
transfer
channels
facilitate
exposure
active
sites.
Experiments
density
functional
theory
(DFT)
calculations
reveal
distinctive
Fe‐N
2
‐Cl
sites
afford
significantly
reduced
energy
barriers
promoted
kinetics
ORR.
Consequently,
Fe‐NP‐Cl‐C
exhibits
distinguished
performance
half‐wave
potential
(E
1/2
)
0.92
V
excellent
stability.
Remarkably,
assembled
battery
based
delivers
an
extremely
high
peak
power
260
mW
cm
−2
large
specific
capacity
812
mA
h
g
−1
,
outperforming
commercial
Pt/C
most
reported
congeneric
catalysts.
This
study
offers
new
perspective
structural
optimization
engineering
electrocatalysis
conversion
devices.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: March 26, 2024
Zinc-air
batteries
(ZABs)
are
promising
energy
storage
systems
because
of
high
theoretical
density,
safety,
low
cost,
and
abundance
zinc.
However,
the
slow
multi-step
reaction
oxygen
heavy
reliance
on
noble-metal
catalysts
hinder
practical
applications
ZABs.
Therefore,
feasible
advanced
non-noble-metal
electrocatalysts
for
air
cathodes
need
to
be
identified
promote
catalytic
reaction.
In
this
review,
we
initially
introduced
advancement
ZABs
in
past
two
decades
provided
an
overview
key
developments
field.
Then,
discussed
working
mechanism
design
bifunctional
from
perspective
morphology
design,
crystal
structure
tuning,
interface
strategy,
atomic
engineering.
We
also
included
studies,
machine
learning,
characterization
technologies
provide
a
comprehensive
understanding
structure-performance
relationship
pathways
redox
reactions.
Finally,
challenges
prospects
related
designing
Journal of Energy Storage,
Journal Year:
2024,
Volume and Issue:
85, P. 111040 - 111040
Published: March 1, 2024
Electrolyte
is
a
crucial
component
in
electrochemical
energy
storage
devices
(EESDs)
such
as
rechargeable
batteries
and
supercapacitors
(SCs).
While
substantial
effort
has
been
directed
to
engineering
the
electrodes,
fewer
but
effective
continuous
efforts
have
devoted
improve
devices'
performance
through
modification
of
their
electrolytes.
Among
these
approaches,
strategic
integration
minor
amounts
additives
led
formation
appropriate
solid-electrolyte
interphase
(SEI)
cathode-electrolyte
(CEI),
well
modifying
ionic
conductivity,
preventing
dendrite
growth,
improving
charge
kinetics.
various
electrolytes,
carbon
quantum
dots
(CDs)
graphene
(GQDs)
emerged
favorable
options
due
positive
influence
on
electrolytes
for
EESDs.
These
QDs
are
soluble
specific
solvents
numerous
functional
moieties
allow
them
act
electrolyte
polyanions.
Furthermore,
excellent
physiochemical
properties
make
candidates
fillers
solid-state
The
excellence
verified
by
characterization
methods
affirming
parameters
ion-diffusion
kinetics,
capacity,
resistance.
application
CDs
GQDs
EESDs
new
ruling
mechanisms
not
well-known
yet.
This
review
article
provides
an
overview
both
liquid
solid
lithium-,
sodium-,
potassium-,
zinc-ion
lithium
metal
besides
SCs.
Herein,
we
aim
offer
valuable
insights
into
designing
fabricating
class
based
realizing
novel
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(14), P. 4847 - 4870
Published: Jan. 1, 2024
Based
on
the
advancements
in
atomically
dispersed
multi-site
catalysts
for
FZABs,
this
review
discusses
design
methodologies
to
regulate
performance
of
bifunctional
oxygen
electrocatalysts
from
electronic
and
geometric
structures.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(29)
Published: Feb. 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.
