In Situ Grown Oxygen‐Vacancy Rich NiCo‐LDHs for High‐Performance Supercapacitors
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(8)
Published: Feb. 1, 2025
Abstract
Layered
double
hydroxides
(LDHs)
are
increasingly
recognized
as
highly
promising
electrode
materials
for
supercapacitors,
owing
to
their
exceptional
specific
capacitance,
notable
redox
activity,
and
superior
anion
exchange
capability.
However,
several
challenges
still
need
be
addressed
achieve
the
theoretical
capacitance
excellent
rate
capacity,
including
poor
electronic
ionic
conductivity.
In
this
study,
a
two‐step
method
was
employed
prepare
high
conducting
NiCo‐LDH‐
V
o
materials,
demonstrating
enhanced
electrochemical
performance
supercapacitor
electrodes.
First,
NiCo‐LDH
directly
electrodeposited
onto
high‐conductivity
nickel
foam,
which
conductivity
avoided
effects
of
adhesives.
Second,
soak
in
H
2
O
solution
introduce
more
oxygen
vacancies.
The
resulting
exhibited
higher
electron
ion
diffusion
ability,
leading
increased
capacity
long‐term
stability
(771.8
C
g
−1
at
1
A
with
an
retention
92%).
Language: Английский
Surface-interlayer synergistic hybridization of Ni3S2 particles for secondary energy storage in aqueous supercapacitors
Haiyang Zhai,
No information about this author
Jie He,
No information about this author
Xinyu Miao
No information about this author
et al.
Journal of Energy Storage,
Journal Year:
2025,
Volume and Issue:
117, P. 116211 - 116211
Published: March 13, 2025
Language: Английский
Design of flower-like CuCo2O4@NiCo LDH nanostructures for high-performance supercapacitors
Kun Xie,
No information about this author
Yuan Chen,
No information about this author
Xing Chen
No information about this author
et al.
Ionics,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 2, 2025
Language: Английский
Current Advancement in Electrochemical Potential of Polypyrrole‐Based Composite Materials for Supercapacitor Application: A Mini Review
Bhakti G. Thali,
No information about this author
Dhiraj S. Agrahari,
No information about this author
Rajesh M. Kamble
No information about this author
et al.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(18)
Published: May 1, 2025
Abstract
Polypyrrole
(PPy)
has
been
the
subject
of
extensive
research
recently
as
a
supercapacitive
material
due
to
its
high
theoretical
capacitance,
low
cost,
facile
synthesis,
and
abundance
in
nature.
However,
cyclic
stability
PPy
alone
an
electrode
is
drawback
for
energy
storage
application.
For
supercapacitors
(SCs),
composite
materials
based
on
have
developed
improve
their
electrochemical
performance.
This
review
summarizes
some
recent
developments
field
hybrid
SCs.
Additionally,
certain
recommendations
are
made
about
advancement
large‒scale
synthesis
techniques
further
enhancing
PPy‒based
practical
utility
devices.
Language: Английский