ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(13), P. 15035 - 15045
Published: June 21, 2024
Herein,
a
reverse
bias
heterojunction
NiCoS/NiCo-OH
with
mesopores
as
the
positive
electrode
was
constructed
by
interface
engineering.
During
process
of
charging,
application
potential
external
circuit
to
enhances
accumulation
charges
within
NiCoS
nanosheets.
Under
modulation
built-in
electric
field
at
interface,
mesoporous
NiCo-OH
acts
receiver,
collecting
from
nanosheets
and
forming
channel
leading
efficient
ion
diffusion
charge
transfer.
The
specific
capacity
is
up
406.5
mA
h
g–1
1
A
g–1.
It
demonstrates
ultrahigh
rate
performance,
reaching
81.9%
(50
g–1)
77.4%
(100
g–1).
hybrid
supercapacitor
NiCoS/NiCo-OH//FNG
shows
high
energy
density
51.3
W
kg–1
1650
kg–1.
Moreover,
Zn||NiCoS/NiCo-OH
battery
reaches
419.1
g–1cathode
g–1,
it
can
still
maintain
73%
(306.3
g–1cathode)
100
Journal of Materials Chemistry A,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
An
MXene/POP
hybrid
material
with
abundant
redox-active
sites
was
prepared
through
an
in
situ
growth
strategy
and
exhibited
high
specific
capacitance,
excellent
rate
performance,
outstanding
long-term
cycling
stability
for
pseudocapacitors.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 27, 2025
Covalent
organic
frameworks
(COFs)
nanofilms
with
well-ordered
channels
and
highly
active
interfaces
have
great
potential
in
in-plane
micro-supercapacitors
(MSCs).
COF
heterojunction
integrate
the
benefits
of
individual
phases
through
alternating
stacking.
Herein,
sandwich-type
heterojunctions
are
prepared
under
van
der
Waals
bonding,
controlling
larger
outer
aperture
(vs.
inner)
to
create
stereoscopic
lamination
effect
axial
channel
structure,
which
enhances
rapid
transport
electrolyte
H⁺
their
concentrated
accumulation
on
interfaces.
Simultaneously,
unique
structure
effectively
reduces
resistance
electron
transport,
enabling
electrons
conduct
π-electron
clouds
facilitating
π-π
transitions
across
In
addition,
is
also
adjusted
inhibit
H+
overflow
causing
self-discharge
phenomenon.
The
results
show
that
optimal
MSC-COF1.0-0.6-1.0
exhibits
a
high
volumetric
specific
capacitance
(CV)
598.6
F
cm-3,
energy
density
40.7
mWh
cm-3
at
2095.2
mW
good
property
up
36
h,
excellent
cycling
bending-resistant
stability.
This
work
about
integration
multiple
factors
heterojunctions,
including
effect,
interface
contribution,
ion
overflow,
can
provide
theoretical
guidance
for
application
miniature
or
flexible/wearable
devices.
Langmuir,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 18, 2024
Covalent
organic
frameworks
(COFs)
possessing
a
well-defined
structure
and
abundant
functional
groups
are
prospective
pseudocapacitive
electrode
materials.
However,
their
intrinsic
poor
electrical
conductivity
stacking
problems
usually
impede
the
utilization
of
active
sites.
Herein,
we
conduct
an
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(43), P. 29814 - 29825
Published: Jan. 1, 2024
DQHBA-COF
with
bipolar
redox-active
centers
was
grown
in
situ
on
the
conductive
graphene
surface,
endowing
symmetric
supercapacitors
and
capacitive
deionization
systems
a
high
ion
storage
capacity
excellent
cycling
durability.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 13, 2024
Abstract
Transforming
water
vapor
into
electricity
is
a
critical
method
for
advancing
renewable
energy
supply
and
alleviating
the
global
crisis.
However,
conventional
materials
typically
struggle
to
achieve
balance
between
storage
humidity
harvesting,
making
integration
of
detection
with
technology
an
emerging
challenge.
To
address
this
challenge,
novel
material
design
strategy
explored
aimed
at
combining
harvesting
capabilities
storage.
Two
hygroscopic
Bi‐based
metal‐organic
frameworks
[Bi
2
(HABTC)(ABTC)
0.5
·4H
O]
(MOF
1
)
4
(ABTC)
3
(DMF)
]·DMF
are
grown
in
situ
on
carbon
paper
electrodes,
followed
by
further
modification
polyaniline
(PANI).
This
approach
enhances
hygroscopicity
materials,
thereby
improving
electrochemical
performance,
doubling
density
compared
traditional
coating
methods.
The
humidity‐sensitive
polyoxometalates
(POMs)
electrolytes
create
synergistic
interaction
electrode
electrolyte,
enabling
effective
moisture
harvesting.
At
90%
relative
(RH)
70
°C,
constructed
solid‐state
capacitor
demonstrates
high
40.40
Wh
kg
−1
499.82
W
.
research
not
only
confirms
feasibility
but
also
paves
innovative
pathway
field
conversion,
highlighting
its
significant
potential
future
practical
applications.
