ACS Applied Energy Materials,
Год журнала:
2024,
Номер
7(20), С. 9207 - 9215
Опубликована: Окт. 7, 2024
A
robust
cycle
life
and
high
energy
power
density
are
essential
for
storing
energy.
In
addition,
flexible
self-supporting
electrodes
play
a
crucial
role
in
supercapacitor
applications.
Herein,
we
present
the
use
of
thienothiophene
single-walled
carbon-nanotube-based
hybrid
material,
TT-HB-SWCNT,
as
highly
efficient
symmetrical
having
self-standing
properties.
It
serves
free-standing
electrode
two-electrode
system
both
storage
purposes.
The
developed
demonstrates
an
appropriate
its
application
supercapacitors,
exhibiting
C-rate
capability
that
aligns
with
operational
range
supercapacitors.
Moreover,
regarding
GCD
curves
first
last
five
cycles,
it
is
evident
charge
discharge
occur
reversibility
10,000
cycles.
displayed
capacity
57.44
F·g–1
at
4
A·g–1
current
maximum
2000
W·kg–1,
demonstrating
TT-HB-SWCNT
promising
nanomaterial
high-performance
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 27, 2025
Technological
advancements
have
spurred
an
emerging
demand
for
flexible
energy
storage
devices
with
high-power
density
and
significant
cycle
stability.
Here,
environmentally-friendly
approach
has
been
developed
to
synthesize
coral
reef-bioinspired
ultrathin
NiCo
layered
double
hydroxides
(CRBI-LDH)
composites
on
carbon
felt
(CF)
substrates.
The
thin
layer
nanostructure,
which
consists
of
mesoporous
LDH
nanosheet
arrays
vertically
grown
onto
the
surface
fibers,
mimics
natural
architecture
reefs
create
a
highly
efficient
asymmetric
supercapacitor.
CF/CRBI-NiCo-LDH
electrode
exhibited
remarkable
specific
capacitance
1661.6
F
g−1
at
current
1
A
g−1,
it
still
retained
1617.6
even
when
was
increased
10
g−1.
Moreover,
revealed
excellent
cycling
stability
(96.7%
retention
after
3000
cycles).
An
57.2
Wh
kg−1
also
observed
power
820
W
kg−1,
supercapacitor
employed
CRBI-NiCo-LDH
nanocomposite
as
cathode
activated
paste
anode.
This
combination
high
performance,
low
cost,
ease
fabrication
makes
this
promising
development
devices.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 25, 2024
Covalent
organic
frameworks
(COFs)
with
high
porosity
and
redox-active
properties
have
been
advanced
as
electrode
materials
for
energy
storage
systems,
although
poor
electron
conductivity
inaccessibility
of
active
pore
sites
hinder
their
performance
material
supercapacitor
application.
Thus,
incorporation
a
COF
various
conductive
can
be
an
effective
strategy
to
improve
electrochemical
performances
supercapacitors.
Herein,
we
report
the
synthesis
POR-COF@g-C
Macromolecular Materials and Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 5, 2025
Abstract
Organic
covalent
frameworks
(COFs)
have
played
significant
roles
in
achieving
high
performance
as
electronic
conductive
and
semi‐conductive
materials
a
wide
range
of
applications,
including
solar
cells,
capacitors,
hydrogen‐production
or
storing
materials,
cancer
cell
treatments,
photosensitizers
bacterial
therapy,
chemical
sensors,
light‐emitting
diodes.
porous
polymer
are
analogs
COFs
without
crystalline
nature
widely
examined
material
chemistry
owing
to
their
ease
design,
functionality,
flexibility.
Novel
conjugated
triazine‐type
organic
polymers
(P1‐P3),
possessing
2‐benzonitryl‐3‐(4′‐methoxyphenyl)thieno[3,2‐
b
]thiophene
(TT)
π‐bridge
triphenylamine
(TPA),
tetraphenylethylene
(TPE)
carbazole
(Cbz)
linkers
designed
synthesized
via
trimerization
reaction
using
trifluoromethanesulfonic
acid
(CF
3
SO
H).
The
study
the
optical
properties
monomers
(M1‐M3),
surface
morphologies,
photoconductive
behaviors
various
techniques
such
UV–vis
fluorescence
spectroscopies,
CV,
SEM,
BET,
FP‐TRMC.
Among
investigated
polymers,
(P3)
having
Cbz‐linkage
exhibited
highest
photoconductivity
φ∑µ,
both
undoped
(1.8
×
10
−9
m
2
V
−1
s
)
I
‐doped
(3.2
−8
).
conductivity
went
down
φ∑µ
=
8.5
−10
(undoped)
1.5
(I
‐doped)
with
(P2)
TPE‐linkage.
Thienothiophenes
are
proved
to
be
suitable
for
designing
quantum
dots
highly
sensitive
and
customizable
optical
probes
biosensing,
imaging
optoelectronic
applications.
