Wasted rose-derived porous carbons with unique hierarchical heteroatom-enriched structures as a high-performance supercapacitor electrode
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(33), С. 22045 - 22060
Опубликована: Янв. 1, 2024
High-quality
and
low-cost
activated
carbons
(ACs)
are
highly
considered
as
high-performance
electrode
materials
for
next-generation
supercapacitors.
Язык: Английский
High-Performance Ni(II)@Amine-Functionalized Graphene Oxide Composite as Supercapacitor Electrode: Theoretical and Experimental Study
ACS Applied Energy Materials,
Год журнала:
2024,
Номер
7(15), С. 6142 - 6154
Опубликована: Июль 31, 2024
Graphene
oxide
(GO)
has
been
broadly
utilized
as
a
starting
precursor
for
electrochemical
applications
due
to
its
unique
tunable
characteristics.
In
this
work,
Ni(II)@amine-functionalized
graphene
composite
was
introduced
high-performance
supercapacitor
electrode
theoretically
and
experimentally.
The
(Ni@A-GO)
fabricated
through
facile
synthesis
route,
utilizing
nickel
stabilized
on
glutamine.
Fourier-transform
infrared
(FTIR)
spectroscopy,
X-ray
diffraction
(XRD),
Raman,
scanning
electron
microscopy
(SEM),
energy
dispersive
spectroscopy
(EDX)
were
characterize
the
synthesized
sample.
first-principle
study
revealed
significantly
higher
quantum
capacitance
of
Ni@A-GO
than
GO.
line
with
theoretical
results,
experimental
investigation
exhibited
high
1136
F
g–1
at
2
A
current
density
significant
retention
84%
5
well
good
stability
12
000
cycles,
in
three-electrode
system.
Moreover,
an
asymmetric
two-electrode
device
(Ni@A-GO//AC),
assembled
using
positive
activated
carbon
(AC)
negative
electrode,
demonstrated
excellent
specific
478
5000
promising
practical
application
electrode.
Язык: Английский
Heteroatom-doped graphene: From fabrication to supercapacitor and batteries energy storage applications
FlatChem,
Год журнала:
2025,
Номер
unknown, С. 100807 - 100807
Опубликована: Янв. 1, 2025
Язык: Английский
Copper (II) anchored on guanidine-functionalized graphene oxide as a high-performance supercapacitor electrode: An experimental and theoretical investigation
Electrochemistry Communications,
Год журнала:
2025,
Номер
unknown, С. 107927 - 107927
Опубликована: Апрель 1, 2025
Язык: Английский
The Role of the Manganese Content on the Properties of Mn3O4 and Reduced Graphene Oxide Nanocomposites for Supercapacitor Electrodes
Опубликована: Июль 19, 2024
Increasing
the
energy
density
and
power
of
supercapacitors
through
hybrids
carbonaceous
materials
metal
oxides
continues
to
be
subject
numerous
research
works.
The
correlation
between
specific
capacitance
properties
used
as
electrodes
attracts
great
interest.
In
present
study,
we
have
investigated
composites
(GO/Mn3O4)
prepared
by
hydrothermal
method
with
variable
ratio
GO/Mn3O4
tested
supercapacitor
electrode
in
three
two-electrode
cells.
chemical
characterization
carried
out
X-ray
Photoelectron
Spectroscopy
adsorption
techniques
allowed
determination
surface
carbon
oxygen
content,
well
its
textural
properties.
this
work
analyzed
contribution
double
layer
Faradaic
reactions
value
final
supercapacitance
synthesized
materials.
Beyond
empirically
obtaining
electrochemical
properties,
these
been
related
physicochemical
characteristics
hybrids,
help
design
best
performances
for
electrodes.
Язык: Английский
The Role of the Manganese Content on the Properties of Mn3O4 and Reduced Graphene Oxide Nanocomposites for Supercapacitor Electrodes
Coatings,
Год журнала:
2024,
Номер
14(9), С. 1136 - 1136
Опубликована: Сен. 4, 2024
Increasing
the
energy
density
and
power
of
supercapacitors
through
hybrids
carbonaceous
materials
metal
oxides
continues
to
be
subject
numerous
research
works.
The
correlation
between
specific
capacitance
properties
used
as
electrodes
attracts
great
interest.
In
present
study,
we
investigated
composites
(GO/Mn3O4)
prepared
by
hydrothermal
method
with
a
variable
ratio
GO/Mn3O4
tested
them
supercapacitor
electrode
in
three-
two-electrode
cells.
chemical
characterization
carried
out
X-ray
photoelectron
spectroscopy
adsorption
techniques
allowed
determination
surface
carbon
oxygen
content,
well
its
textural
properties.
this
work,
analyzed
contribution
double
layer
Faradaic
reactions
value
final
synthesized
materials.
Beyond
empirically
obtaining
electrochemical
properties,
these
have
been
related
physicochemical
characteristics
help
design
best
performance
for
electrodes.
Язык: Английский
Energy systems and green sourced nanomaterials—A today’s outlook
Deleted Journal,
Год журнала:
2024,
Номер
2(2), С. 1879 - 1879
Опубликована: Ноя. 20, 2024
Owing
to
current
growing
demands
of
environmental
friendly
energy
devices,
innumerable
green
materials/nanomaterials
have
been
applied
design
the
desired
high
tech
devices.
Amongst
supercapacitors
ranked
distinctively
for
efficient
storage
competence.
Principally,
nanocomposites
derived
from
or
ecological
polymers
and
nanoparticles
scrutinized
supercapacitor
components.
Concerning
this,
review
has
planned
sketch
application
nanocomposites,
predominantly
supercapacitors.
In
this
concern,
mostly
synthetic
(such
as
polyaniline,
polypyrrole,
etc.)
their
blends
with
natural
(like
chitosan)
having
fine
biodegradability,
non-toxicity,
low
cost,
superior
device
end
performance
found
noteworthy
materials.
Additionally,
nanofillers
like
carbon
(carbon
nanotube,
graphene,
metal
processed
via
techniques,
in
situ,
solution,
sonication,
mixing,
hydrothermal,
exfoliation,
reduction,
etc.,
form
anticipated
consequence,
designed
expectedly
had
advantages
price/weight,
mechanical/heat
resilience,
electron
transference,
capacitance,
power/charge
density,
charge-discharge,
sustainability
well
environmentally
friendliness
related
methodological
systems.
Incidentally,
challenges
towards
devices
conversed.
Язык: Английский