High‐Entropy Alloys and Oxides as Supercapacitor Electrodes: A Structural and Electrochemical Perspective for Energy Storage
Advanced Sustainable Systems,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 17, 2025
Abstract
This
study
investigates
the
performance
of
high
entropy
alloys
[Fe
3
Cr
Mn
2
NiV,
HEA)]
and
oxides
[(Fe
NiV)O
4
,
HEO)]
as
electrode
materials
for
supercapacitors.
HEA
is
synthesized
through
mechanical
alloying,
followed
by
HEO
forming
via
an
oxidation
process.
XRD
results
demonstrate
comprises
both
amorphous
crystalline
phases,
whereas
has
entirely
structure.
SEM
analyses
showed
exhibits
larger
irregular
particles,
displays
a
smaller
spherical
morphology.
EPR
revealed
significant
changes
in
defect
structures
unpaired
electron
configurations
during
transition
from
to
HEO.
prone
diffusion‐controlled
processes
due
their
regular
structure
strong
magnetic
interactions;
however,
capacitive
behavior
based
on
surface
redox
reactions
pseudo‐capacitive
mechanisms
oxygen
vacancies.
CV
that
contributes
more
reactions,
while
GCPL
suggested
demonstrated
superior
energy
density
(40.8
Wh
kg
−1
)
power
(14.3
kW
).
Impedance
exhibited
reduced
internal
resistance
enhanced
ion
conductivity,
higher
processes.
In
conclusion,
exhibit
distinct
storage
mechanisms,
these
can
be
optimized
supercapacitor
applications.
Язык: Английский
Superior supercapattery performance enabled by MnS/Fe2O3 nanosheets and theoretical evaluation of contributing currents
Inorganic Chemistry Communications,
Год журнала:
2025,
Номер
unknown, С. 114171 - 114171
Опубликована: Март 1, 2025
Язык: Английский
CTAB assisted in the synthesis of scandium doped-induced oxygen vacancy porous CoMoO4 positive electrode and MoO3-CNTs negative electrode to construct ultra-high performance supercapacitors
Journal of Energy Storage,
Год журнала:
2025,
Номер
121, С. 116583 - 116583
Опубликована: Апрель 11, 2025
Язык: Английский
Facile one-step preparation of Ni-doped MIL-53(Fe) metal–organic frameworks for efficient hybrid supercapacitor performance
New Journal of Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Nickel
ions
were
incorporated
into
MIL-53(Fe)
framework
to
design
a
nickel-doped
iron-based
MOF
(MIL-53(Fe)-Ni),
and
used
as
an
efficient
electrode
improve
supercapacitor
performance.
Язык: Английский
Nanoarchitectonics with redox active site modulation in bimetallic MIL-125(Ti, Mn) MOF for enhanced supercapacitor performance
Journal of Alloys and Compounds,
Год журнала:
2025,
Номер
unknown, С. 180753 - 180753
Опубликована: Май 1, 2025
Язык: Английский
Reduced graphene oxide and fullerene-coated Mn-Doped ZrO₂: A synergistic approach to advanced supercapacitors
Journal of Electroceramics,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 20, 2025
Язык: Английский
Fabrication of Symmetric PANI/CeVO4 Nanocomposites Supercapacitor Device: Electrochemical Characterization and Performance Evaluation
S. Abirami,
Е. Ranjith Kumar,
B. Vigneshwaran
и другие.
Electrochimica Acta,
Год журнала:
2025,
Номер
unknown, С. 146512 - 146512
Опубликована: Май 1, 2025
Язык: Английский
Enhanced supercapacitor performance with cerium-doped polypyrrole nanofibers
Journal of Materials Chemistry A,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Incorporation
of
cerium
ions
into
the
polypyrrole
(PPy:Ce)
nanofiber
matrix
enhanced
redox
functionality
and
structural
properties.
Electrochemical
tests
in
a
two-electrode
setup
showed
improved
capacitance,
energy
density
long-term
stability.
Язык: Английский