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:
2025,
Volume and Issue:
15(4), P. 257 - 257
Published: Feb. 8, 2025
Microplastic
pollution
represents
a
significant
global
environmental
issue,
with
cigarette
filters
being
major
contributor
due
to
their
slow
biodegradation.
To
address
this
issue
while
creating
valuable
materials,
we
developed
novel
approach
synthesize
nitrogen-doped
carbon
nanotubes
on
carbonized
filter
powder
(NCNT@cCFP)
using
microwave
irradiation
and
nickel-catalyzed
process.
The
successful
incorporation
of
nitrogen
(~6.6
at.%)
the
enhanced
graphitic
structure
create
hierarchical
conductive
network
abundant
active
sites
for
electrochemical
reactions.
resulting
NCNT@cCFP
electrode
exhibits
specific
capacitance
452
F/g
at
1
A/g
in
three-electrode
configuration.
integrated
facilitates
efficient
electron
transport
ion
diffusion,
leading
excellent
rate
capability
(91.6%
10
A/g)
cycling
stability
(96.5%
retention
after
5000
cycles).
Furthermore,
symmetric
supercapacitor
device
demonstrates
promising
energy
storage
maximum
density
14.0
Wh/kg
483.1
W/kg,
maintaining
10.4
high
power
4419.1
W/kg.
This
synergistic
waste
recycling
strategy
combined
microwave-driven
synthesis
offers
sustainable
pathway
developing
high-performance
materials.
Journal of Physics Conference Series,
Journal Year:
2025,
Volume and Issue:
2973(1), P. 012005 - 012005
Published: March 1, 2025
Abstract
The
main
factors
in
improving
supercapacitor
charge
storage
are
synergistic
nano-hierarchical-pore
structure
modification
and
natural
heteroatom
doping
strategy.
These
depend
on
the
reasonable
selection
of
precursors,
activators,
preparation
strategies.
In
this
study,
Self-Boron
Oxygen-doped
carbon
porous
was
achieved
through
an
environmentally
benign
approach
with
a
dual-solid-cell
system
electrode
design
precursor
dried
sugarcane
bagasse,
which
converted
into
by
dual-atmosphere
vertical
pyrolysis.
Carbon
pores
studied
at
high
temperatures
800°C-900°C,
respectively.
pyrolyzed
850°C
has
porosity
as
563.72
m
2
g
−1
excellent
micropores
reaching
92.8%.
Morphological
properties
crystallinity
have
also
been
tested
to
provide
support.
as-prepared
material
undergoes
significant
transformation,
resulting
well-defined
3D
hierarchical
pore
structure.
Through
series
high-temperature
pyrolysis
processes,
framework
is
broken
down
replaced
various
dopants,
particularly
boron
oxygen,
enriching
material.
Furthermore,
element
content
reaches
87.17%,
oxygen
amount
12.38%
0.45%,
ensuring
Faraday
reactions
initiating
pseudo-capacitance
active
extraordinary
physico-chemical
behaviour
cells
based
bagasse
achieves
capacitive
151.6
F
1
A
.
energy
output
increases
21
Wh
kg
,
power
167
W
acidic
medium.
Sugarcane
highly
promising
source
electrochemical
devices,
supercapacitors.
It
leverages
eco-friendly
process
that
utilizes
bio-waste
without
need
for
chemical
all
while
exhibiting
outstanding
properties.
Langmuir,
Journal Year:
2023,
Volume and Issue:
39(19), P. 6865 - 6873
Published: May 3, 2023
Porous
carbon,
one
of
the
characteristic
materials
for
electrochemical
energy
storage
devices,
has
been
paid
wide-ranging
attention.
However,
balancing
reconcilable
mesopore
volume
with
a
large
specific
surface
area
(SSA)
was
still
challenge.
Herein,
dual-salt-induced
activation
strategy
developed
to
obtain
porous
carbon
sheet
ultrahigh
SSA
(3082
m2
g-1),
desirable
(0.66
cm3
nanosheet
morphology,
and
high
O
(7.87%)
S
(4.0%)
content.
Hence,
as
supercapacitor
electrode,
optimal
sample
possessed
capacitance
(351
F
g-1
at
1
A
g-1)
excellent
rate
performance
(holding
up
72.2%
50
g-1).
Furthermore,
assembled
zinc-ion
hybrid
also
exhibited
superior
reversible
capacity
(142.7
mAh
0.2
highly
stable
cycling
(71.2
5
after
10,000
cycles
retention
98.9%).
This
work
delivered
new
possibility
development
coal
resources
preparation
materials.
Ain Shams Engineering Journal,
Journal Year:
2022,
Volume and Issue:
14(8), P. 102030 - 102030
Published: Oct. 28, 2022
Capacitive
deionization
(CDI)
is
an
emerging,
efficient,
cheap,
and
environmentally
friendly
water
desalination
technology.
One
of
the
most
critical
components
CDI
system
electrodes;
thus,
improving
their
performance
will
promote
its
commercial
application.
The
cost,
efficiency,
availability
electrode
materials
are
main
challenges
facing
application
in
wastewater
treatment
compared
to
other
technologies.
To
reduce
cost
electrodes,
carbon
derived
from
biomass
general
wastes
being
considered.
A
detailed
review
bio-based
electrodes
presented.
comparison
between
these
novel
conventional
nanomaterials
discussed
terms
resource
availability,
ease
manufacture,
material
specifications,
performance.
Finally,
future
research
recommendations
introduced
enhance
this
technology's
feasibility
BioResources,
Journal Year:
2024,
Volume and Issue:
19(2)
Published: March 26, 2024
Lignin,
with
its
carbon
content
of
up
to
60%,
can
be
an
ideal
precursor
for
the
preparation
materials.
Carbonaceous
materials
obtained
from
lignin
transformed
into
porous
and
structural
morphologies
at
different
scales,
providing
a
biomass
approach
energy
conversion
storage
in
batteries.
Focusing
on
lignin-derived
materials,
this
paper
summarizes
structures
lignin-based
through
methods,
electrochemical
properties
exhibited
by
these
as
electrode
rechargeable
batteries
(lithium-ion
batteries,
sodium-ion
lithium-sulphur
etc.).
In
addition,
development
prospects
challenges
field
are
summarized,
ideas
next
step
design
high-performance
carbon-based
Small,
Journal Year:
2024,
Volume and Issue:
20(45)
Published: July 30, 2024
Abstract
The
present
study
provides
a
facile
one‐pot
pyrolysis
strategy
to
prepare
serial
nitrogen‐doped
(N‐doped)
metal/carbon
composites
derived
from
six
types
of
metal
ethylenediaminetetraacetic
acid
(EDTA‐M,
M
=
Co,
Cu,
Mn,
Fe,
Mg,
and
Ca).
N‐doped
Co/C
composite
integrated
carbonaceous
with
magnetic
components
attain
dielectric‐magnetic
double
loss
mechanisms.
minimum
reflection
effective
absorption
bandwidth
reached
−57.6
dB
at
1.75
mm
4.64
GHz
1.52
mm,
respectively.
electromagnetic
simulation
further
confirms
that
the
dissipation
ability
increases
improvement
carbonization
temperature.
Results
show
altering
species
precursors
can
significantly
improve
electrochemical
performance
using
identical
strategy.
Cu/C
performed
maximum
specific
capacitance
2383.3
F
g
−1
0.5
A
,
maintained
86.3%
cycling
stability
20
after
5000
cycles.
energy
density
symmetrical
two‐electrode
configuration
achieved
350.13
Wh
kg
power
4000.04
W
.
Density
functional
theory
calculations
indicate
nitrogen
dopants
cause
faster
ion
transport
stronger
adsorption
capacity.
Moreover,
bifunctionality
other
are
also
systematically
characterized.
