Ionics,
Journal Year:
2024,
Volume and Issue:
30(11), P. 7431 - 7451
Published: Aug. 20, 2024
Abstract
In
recent
years,
biomaterials
are
gaining
popularity
due
to
high
need
make
energy
storage
devices
greener
and
safer.
After
the
carbonization
process,
lignin
has
a
slightly
larger
specific
surface
porous
structure,
which
can
provide
significant
electrochemical
double-layer
capacity.
When
combined
with
kraft
as
binder,
helps
maintain
structural
integrity
of
electrode,
efficient
use
active
material
be
enhanced.
The
binder
facilitates
better
dispersion
carbonized
particles,
reducing
agglomeration
ensuring
greater
availability
sites
for
electrolyte
ions.
aim
this
work
is
present
novel
lignin-based
hard
carbon
an
electrode
applications
in
capacitors.
To
end,
detailed
physicochemical
analysis
was
conducted.
Kraft
at
temperatures
ranging
from
600
1000
°C.
resulting
characterized
by
thermal
stability,
low
polydispersion
index
(PDI),
mesoporosity.
Thermogravimetric
(TG)
used
determine
changes
while
functional
groups
were
analyzed
using
Fourier-transform
infrared
spectroscopy
(FTIR).
applications,
exhibits
cyclic
stability
no
redox
reactions,
primary
mechanism
charge
accumulation
being
based
on
double
layer.
Additionally,
resistances
contribute
improved
storage.
Graphical
abstract
Nanomaterials,
Journal Year:
2023,
Volume and Issue:
13(11), P. 1744 - 1744
Published: May 26, 2023
Porous
carbon
materials
have
demonstrated
exceptional
performance
in
various
energy
and
environment-related
applications.
Recently,
research
on
supercapacitors
has
been
steadily
increasing,
porous
emerged
as
the
most
significant
electrode
material
for
supercapacitors.
Nonetheless,
high
cost
potential
environmental
pollution
associated
with
preparation
process
of
remain
issues.
This
paper
presents
an
overview
common
methods
preparing
materials,
including
carbon-activation
method,
hard-templating
soft-templating
sacrificial-templating
self-templating
method.
Additionally,
we
also
review
several
emerging
such
copolymer
pyrolysis,
carbohydrate
self-activation,
laser
scribing.
We
then
categorise
carbons
based
their
pore
sizes
presence
or
absence
heteroatom
doping.
Finally,
provide
recent
applications
electrodes
Langmuir,
Journal Year:
2024,
Volume and Issue:
40(26), P. 13467 - 13475
Published: June 18, 2024
Because
of
the
deep
and
zigzag
microporous
structure,
porous
carbon
materials
exhibit
inferior
capacitive
performance
sluggish
electrochemical
kinetics
for
supercapacitor
electrode
materials.
Herein,
a
single-step
carbonation
activation
approach
was
utilized
to
synthesize
coal-based
with
an
adjustable
pore
using
CaO
as
hard
template,
KOH
activator,
oxidized
coal
precursors
carbon.
The
obtained
sample
possesses
interconnected
hierarchical
higher
SSA
(1060
m2
g–1),
suitable
mesopore
volume
(0.25
cm3
abundant
surface
heteroatomic
functional
groups.
Consequently,
synthesized
exhibits
exceptionally
high
specific
capacitance
323
F
g–1
at
1
A
g–1,
along
80.3%
retention
50
g–1.
assembled
two-electrode
configuration
demonstrates
remarkable
up
95%
achieves
Coulombic
efficiency
nearly
100%
10,000
cycles
in
6
M
electrolyte.
Furthermore,
Zn-ion
hybrid
capacitor
also
capacity
139.1
mA
h
under
conditions
0.2
This
work
offers
simple
method
preparation
controllable
structure.
