Inventions,
Год журнала:
2024,
Номер
9(5), С. 98 - 98
Опубликована: Сен. 9, 2024
The
iron–chromium
redox
flow
battery
(ICRFB)
has
a
wide
range
of
applications
in
the
field
new
energy
storage
due
to
its
low
cost
and
environmental
protection.
Graphite
felt
(GF)
is
often
used
as
electrode.
However,
hydrophilicity
electrochemical
activity
GF
are
poor,
reaction
reversibility
Cr3+/Cr2+
worse
than
Fe2+/Fe3+,
which
leads
hydrogen
evolution
side
negative
electrode
affects
efficiency
battery.
In
this
study,
optimal
composite
modified
(Bi-Bio-GF-O)
was
prepared
by
using
pomelo
peel
powder
(Bio-GF-O)
matrix
further
introducing
Bi3+.
performance
material
characterization
were
analyzed.
addition,
Bio-GF-O
positive
Bi-Bio-GF-O
electrode,
high
ICRFB
realized,
capacity
attenuation
minimal.
When
current
density
100
mA·cm−2,
after
cycles,
coulomb
(CE),
voltage
(VE),
(EE)
97.83%,
85.21%,
83.36%,
respectively.
paper,
use
Bi3+
not
only
promotes
but
also
improves
ICRFB.
Moreover,
method
controllable,
process
simple.
RSC Advances,
Год журнала:
2024,
Номер
14(25), С. 17628 - 17663
Опубликована: Янв. 1, 2024
Owing
to
their
attractive
energy
density
of
about
8.1
kW
h
kg
−1
and
specific
capacity
2.9
A
g
,
aluminum–air
(Al–air)
batteries
have
become
the
focus
research.
Energy Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 28, 2025
Metal–air
batteries
are
highly
valued
for
their
exceptional
energy
efficiency
and
affordability.
Identifying
suitable
electrode
materials
is
crucial
to
fully
harness
potential.
Carbon
nanomaterials,
renowned
excellent
conductivity,
vast
specific
surface
area,
robust
stability,
minimal
volume
expansion,
have
emerged
as
a
preferred
choice
many.
However,
early
characterization
techniques
struggle
precisely
pinpoint
catalytic
active
sites
across
various
electrocatalytic
reactions,
making
it
challenging
comprehend
the
experimental
impact
of
different
site
types
on
these
reactions.
This
has
posed
significant
obstacle
unveiling
mechanism
developing
efficient
catalysts.
With
advancements
in
methods,
studies
carbon
nanomaterials
progressed
rapidly.
Herein,
structure
nanomaterial
catalysts
reshaped
by
researchers
improve
efficiency,
resulting
four
distinct
structural
forms:
metal‐free
carbon–based
materials,
atomically
dispersed
metal
carbon‐based
nanoparticles
encapsulated
supported
materials.
In
this
review,
features
forms
application
contexts,
detailing
synthesis
methods
effects
each
form,
highlighted.
article
concludes
with
an
overview
recent
future
directions
Abstract
Al‐air
batteries
(AABs)
are
potential
candidates
as
next‐generation
energy
storage
devices,
due
to
their
high
densities
and
environmental
benefits.
The
cotton‐based
AABs
exploit
the
cotton
channels
transport
electrolytes
without
external
pumps.
They
feasible
for
application
in
microelectronics
simple
electrolyte
transportation
systems.
Until
now,
effects
of
battery
materials
on
performance
AAB
seldom
reported.
In
this
work,
influences
parameters
including
anode
(Al
mesh
sheet),
(cotton
cloth
medical
gauze),
cathode
(carbon
paper
graphite
paper),
catalyst
layer
orientations
evaluated
performance.
Under
conditions
Al
material,
gauze
channel
absorbent
pad,
carbon
cathode,
facing
channel,
shows
an
optimal
performance,
with
its
peak
power
density
85.96
±
1.14
mW
cm
−2
limiting
current
209.33
3.93
mA
.
stack,
which
is
assembled
from
two
connecting
series,
can
light
70
LEDs.
