ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 6, 2025
Recently,
significant
progress
has
been
made
in
the
application
of
biomass
field
supercapacitors,
particularly
development
high-performance
electrode
materials,
which
shows
great
potential
and
promise.
Despite
these
advancements,
impact
specific
surface
area
pyrrolic
nitrogen
content
on
final
material
performance
remains
inconclusive.
The
study
underscores
pivotal
role
morphology
doping
process,
highlighting
relationship
between
electrical
properties
content.
Notably,
when
both
increase
concurrently,
exhibit
a
consistent
"volcano-like"
transition.
Building
insights,
porous
nitrogen-containing
carbon
material,
PCH-G-CR2,
was
synthesized.
This
is
characterized
by
medium
area,
high
content,
rich
microporous
structure.
In
three-electrode
system,
it
demonstrates
capacitance
up
to
551.25
F/g
at
current
density
0.5
A/g.
Moreover,
its
symmetrical
device
attained
an
energy
45.92
Wh/kg
power
kW/kg.
capacity
retention
rate
83.44%
after
30,000
cycles
10
proposes
eco-friendly
efficient
method
for
preparing
biomass-based
hydrothermal
materials
suitable
supercapacitors.
ACS Applied Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 4, 2025
This
study
aims
to
enhance
the
electrochemical
performance
of
supercapacitors
by
maximizing
specific
surface
area
and
treatment
carbon-material
electrodes
through
fluorination
doping.
Polyacrylonitrile
(PAN)-based
carbon
fibers
(PCFs)
were
produced
via
electrospinning
subsequently
activated
with
potassium
hydroxide
(KOH)
at
800
°C
obtain
PAN-based
(APCFs).
Direct
was
then
used
synthesize
fluorinated
(FPCFs).
The
electrode
materials
maximized
adjusting
concentration
solution.
effect
on
changes
in
elemental
content
precisely
managed
mitigate
decrease
porosity.
pore
size
distribution,
vital
for
determining
capacitance
supercapacitors,
thoroughly
assessed.
After
activation
processes,
FPCFs
increased
significantly
1753.2
m2
g–1.
value
is
notably
higher
than
that
commercial
carbons,
which
typically
range
from
1200
1500
supercapacitor
properties
resulting
evaluated,
revealing
a
176.2
F
g–1
FPCF
an
electrospun
PAN
7
wt
%.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 6, 2025
Recently,
significant
progress
has
been
made
in
the
application
of
biomass
field
supercapacitors,
particularly
development
high-performance
electrode
materials,
which
shows
great
potential
and
promise.
Despite
these
advancements,
impact
specific
surface
area
pyrrolic
nitrogen
content
on
final
material
performance
remains
inconclusive.
The
study
underscores
pivotal
role
morphology
doping
process,
highlighting
relationship
between
electrical
properties
content.
Notably,
when
both
increase
concurrently,
exhibit
a
consistent
"volcano-like"
transition.
Building
insights,
porous
nitrogen-containing
carbon
material,
PCH-G-CR2,
was
synthesized.
This
is
characterized
by
medium
area,
high
content,
rich
microporous
structure.
In
three-electrode
system,
it
demonstrates
capacitance
up
to
551.25
F/g
at
current
density
0.5
A/g.
Moreover,
its
symmetrical
device
attained
an
energy
45.92
Wh/kg
power
kW/kg.
capacity
retention
rate
83.44%
after
30,000
cycles
10
proposes
eco-friendly
efficient
method
for
preparing
biomass-based
hydrothermal
materials
suitable
supercapacitors.
