ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(6), P. 2352 - 2363
Published: Jan. 23, 2024
Lignin-derived
porous
carbons
have
great
potential
for
energy
storage
applications.
However,
their
traditional
synthesis
requires
highly
corrosive
activating
agents
in
order
to
produce
structures.
In
this
work,
an
environmentally
friendly
and
unique
method
has
been
developed
preparing
lignin-based
3D
spherical
(LSPCs).
Dropwise
injection
of
a
lignin
solution
containing
PVA
sacrificial
templates
into
liquid
nitrogen
produces
tiny
spheres
that
are
lyophilized
carbonized
LSPCs.
Most
the
synthesized
samples
possess
excellent
specific
surface
areas
(426.6–790.5
m2/g)
along
with
hierarchical
micro-
mesoporous
morphologies.
When
tested
supercapacitor
applications,
LSPC-28
demonstrates
superior
capacitance
102.3
F/g
at
0.5
A/g,
rate
capability
70.3%
retention
20
commendable
density
2.1
Wh/kg
250
W/kg.
These
materials
(LSPC-46)
also
show
promising
performance
as
anode
material
sodium-ion
batteries
high
reversible
capacity
(110
mAh
g–1
100
mA
g–1),
Coulombic
efficiency,
cycling
stability.
This
novel
green
technique
is
anticipated
facilitate
scalability
open
range
research
opportunities
Batteries,
Journal Year:
2024,
Volume and Issue:
10(5), P. 168 - 168
Published: May 20, 2024
Modern
research
has
made
the
search
for
high-performance,
sustainable,
and
efficient
energy
storage
technologies
a
main
focus,
especially
in
light
of
growing
environmental
energy-demanding
issues.
This
review
paper
focuses
on
pivotal
role
biomass-derived
carbon
(BDC)
materials
development
high-performance
metal-ion
hybrid
supercapacitors
(MIHSCs),
specifically
targeting
sodium
(Na)-,
potassium
(K)-,
aluminium
(Al)-,
zinc
(Zn)-ion-based
systems.
Due
to
their
widespread
availability,
renewable
nature,
exceptional
physicochemical
properties,
BDC
are
ideal
supercapacitor
electrodes,
which
perfectly
balance
sustainability
technological
advancement.
delves
into
synthesis,
functionalization,
structural
engineering
advanced
biomass-based
materials,
highlighting
strategies
enhance
electrochemical
performance.
It
elaborates
unique
characteristics
these
carbons,
such
as
high
specific
surface
area,
tuneable
porosity,
heteroatom
doping,
achieving
superior
capacitance,
density,
cycling
stability
Na-,
K-,
Al-,
Zn-ion
supercapacitors.
Furthermore,
compatibility
BDCs
with
electrolytes
facilitating
ion
transport
charge
mechanisms
critically
analysed.
Novelty
arises
from
comprehensive
comparison
across
systems,
unveiling
synergistic
effects
BDCs’
attributes
performance
each
type.
also
casts
current
challenges,
scalability,
cost-effectiveness,
consistency,
offering
insightful
perspectives
future
research.
underscores
transformative
potential
MIHSCs
paves
way
next-generation
that
both
high-performing
ecologically
friendly.
calls
continued
innovation
interdisciplinary
collaboration
explore
sustainable
thereby
contributing
advancing
green
technologies.
