Chemical Science,
Год журнала:
2023,
Номер
14(47), С. 13601 - 13628
Опубликована: Янв. 1, 2023
This
review
summarizes
the
recent
advances
in
electrode
application
of
covalent
organic
frameworks
(COFs)
for
supercapacitors,
including
design
strategies
from
molecular
scale
to
morphology
control
level
and
their
device
performance.
Materials,
Год журнала:
2024,
Номер
17(3), С. 702 - 702
Опубликована: Фев. 1, 2024
To
date,
batteries
are
the
most
widely
used
energy
storage
devices,
fulfilling
requirements
of
different
industrial
and
consumer
applications.
However,
efficient
use
renewable
sources
emergence
wearable
electronics
has
created
need
for
new
such
as
high-speed
delivery,
faster
charge–discharge
speeds,
longer
lifetimes,
reusability.
This
leads
to
supercapacitors,
which
can
be
a
good
complement
batteries.
one
their
drawbacks
is
lower
capability,
triggered
worldwide
research
efforts
increase
density.
With
introduction
novel
nanostructured
materials,
hierarchical
pore
structures,
hybrid
devices
combining
these
unconventional
electrolytes,
significant
developments
have
been
reported
in
literature.
paper
reviews
short
history
evolution
supercapacitors
fundamental
aspects
positioning
them
among
other
energy-storage
systems.
The
main
electrochemical
measurement
methods
characterize
features
discussed
with
focus
on
specific
characteristics
limitations.
High
importance
given
integral
components
supercapacitor
cell,
particularly
electrode
materials
types
electrolytes
that
determine
performance
device
(e.g.,
power
output,
cycling
stability).
Current
directions
development
including
carbonaceous
forms,
transition
metal-based
compounds,
conducting
polymers,
discussed.
synergy
between
material
current
collector
key
factor,
well
fine-tuning
electrolyte.
RSC Advances,
Год журнала:
2023,
Номер
13(37), С. 25877 - 25887
Опубликована: Янв. 1, 2023
How
to
efficiently
treat
municipal
solid
waste
(MSW)
has
become
one
of
the
critical
solutions
in
response
call
for
"carbon
neutrality".
Here,
polypropylene
nonwoven
fabric
diapers
was
converted
into
hierarchical
nanoporous
biochar
(HPBC)
through
pre-carbonization
and
activation
processes
as
an
ideal
precursor
supercapacitors
(SCs)
with
excellent
performance.
The
prepared
HPBC-750-4
ultrahigh
specific
surface
area
(3838.04
m2
g-1)
abundant
heteroatomic
oxygen
(13.25%)
nitrogen
(1.16%)
codoped
porous
structure.
Given
its
structural
advantages,
achieved
a
capacitance
340.9
F
g-1
at
current
density
1
A
three-electrode
system.
Its
retention
rate
above
99.2%
after
10
000
cycles
g-1,
which
indicated
capability
long-term
cycling
stability.
Furthermore,
HPBC-750-4//HPBC-750-4
symmetric
SC
exhibited
superb
energy
10.02
W
h
kg-1
power
96.15
6
M
KOH
electrolyte.
This
work
not
only
demonstrates
enormous
potential
industry
but
also
provides
economically
feasible
means
managing
MSW.
Eco-friendly
and
efficient
energy
production
storage
technologies
are
highly
demanded
to
address
the
environmental
crises.
Porous
organic
polymers
(POPs)
a
class
of
lightweight
porous
network
materials
covalently
linked
by
building
blocks,
possessing
high
surface
areas,
tunable
pores,
designable
components
structures.
Due
their
unique
structural
compositional
advantages,
POPs
have
recently
emerged
as
promising
electrode
for
devices,
particularly
in
realm
supercapacitors
ion
batteries.
In
this
work,
comprehensive
overview
recent
progress
applications
including
features
synthesis
strategies
various
POPs,
well
supercapacitors,
lithium
batteries,
sodium
potassium
batteries
provided.
Finally,
insights
provided
into
future
research
directions
electrochemical
technologies.
It
is
anticipated
that
work
can
provide
readers
with
background
on
design
POPs-based
ignite
more
development
next-generation
devices.