Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 19, 2024
Abstract
The
micro‐scale
energy
storage
devices
(MESDs)
have
experienced
significant
revolutions
driven
by
developments
in
micro‐supercapacitors
(MSCs)
and
micro‐batteries
(MBs).
This
review
summarizes
the
advancements
of
MSC
MB
architecture,
highlighting
electrode–electrolyte
designs
emergence
alkali
metal
ions
aqueous
batteries.
performance
synthesis
carbon
quantum
dots
(CQDs),
graphene
(GQDs),
their
synergistic
effects
for
applications
are
investigated.
focus
is
on
integrating
CQDs/GQDs
into
MESDs
enhanced
performance.
development
compositing
CQD/GQD
with
other
materials,
reveals
capacitive
pseudocapacitive
performance,
extending
MESDs’
possibilities.
Moreover,
this
systematically
covers
various
fabrication
techniques
from
photolithography
to
printing
techniques.
merits
practicality
each
technique
fabricating
MSCs
MBs
assessed.
Electrochemical
evaluation,
capacitance
enhancement,
charge–discharge
kinetics,
stability
assessments
presented
demonstrate
efficiency
practical
applications.
Despite
progress,
challenges
remain,
particularly
scalability
understanding
long‐term
stability.
Nevertheless,
prospects
promising,
avenues
synthesis,
fabrication,
electrochemical
which
lead
a
paradigm
shift
MESDs.
offers
broad
perspective,
combining
innovations
across
diverse
domains
directing
frontline
microelectronics.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 19, 2024
Abstract
The
sweat
evaporation
strategy
has
shown
great
potential
for
passive
cooling
of
the
human
body.
However,
accumulation
at
skin
resulting
from
hindrance
by
traditional
fabrics
increases
heat
load
and
causes
clothing
to
stick
skin.
Sweat
textiles
that
perform
sweat‐wicking
function
glands
are
thus
highly
desirable.
Here,
a
gland‐like
(Sg‐like)
fabric
is
proposed
personal
thermal‐wet
comfort
management.
Sg‐like
channels
formed
in
through
spraying
ultrasonic
welding
processes
can
pull
liquid
water
spread
it
out
over
outer
layer
rapid
evaporation.
design
principle
also
well‐validated
based
on
colored
fabrics.
In
artificial
sweating
demonstrations,
temperature
covered
with
comparable
bare
lower
than
commercial
textiles.
body
tests,
reduction
≈2
°C
observed
coated
compare
skin‐coated
cotton.
It
expected
this
work
offers
promising
guidelines
developing
sweat‐evaporation
textile
meet
requirements
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Июль 3, 2024
Electric
double-layer
capacitors
(EDLCs)
with
fast
frequency
response
are
regarded
as
small-scale
alternatives
to
the
commercial
bulky
aluminum
electrolytic
capacitors.
Creating
carbon-based
nanoarray
electrodes
precise
alignment
and
smooth
ion
channels
is
crucial
for
enhancing
EDLCs'
performance.
However,
controlling
density
of
macropore-dominated
poses
challenges
in
boosting
capacitance
line-filtering
EDLCs.
Herein,
a
simple
technique
finely
adjust
vertical-pore
diameter
inter-spacing
three-dimensional
nanoporous
anodic
oxide
(3D-AAO)
template
achieved,
3D
compactly
arranged
carbon
tube
(3D-CACT)
nanoarrays
created
symmetrical
EDLCs
using
3D-AAO
template-assisted
chemical
vapor
deposition
carbon.
The
3D-CACT
demonstrate
high
surface
area
253.0
m
Applied Sciences,
Год журнала:
2024,
Номер
14(6), С. 2452 - 2452
Опубликована: Март 14, 2024
Supercapacitors
have
garnered
significant
interest
in
recent
years
due
to
their
high
power
density,
rapid
charge/discharge
rates,
and
long
cycle
life.
MXenes,
a
family
of
two-dimensional
(2D)
transition
metal
carbides/nitrides,
emerged
as
promising
electrode
materials
for
supercapacitors.
However,
one
major
challenge
associated
with
incorporating
MXenes
supercapacitor
structures
is
the
occurrence
sticking,
wherein
individual
MXene
flakes
agglomerate,
leading
reduced
performance.
This
review
paper
discusses
various
causes
sticking
approaches
preventing
it,
offering
insights
into
design
development
high-performance
MXene-based
The
morphology
size
flakes,
flake
surface
chemistry,
thickness,
area/volume
ratio,
processing
techniques
(including
solvent
selection,
additives
incorporation,
deposition
technology),
environmental
factors
were
shown
be
basic
resulting
sheets.
Among
strategies
mitigate
this
challenge,
functionalization
passivation,
integration
polymer
matrices
or
carbon
nanomaterials,
optimization
considered.
Possible
paths
future
directions
study,
such
novel
compositions,
understanding
interfaces
electrode–electrolyte
interactions,
advanced
architectures,
energy
storage
systems,
assumed.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 21, 2024
Abstract
Phase
engineering
holds
great
promise
in
enhancing
the
functionalities
of
nanomaterials
by
enabling
precise
control
over
their
phase
and
morphology.
However,
achieving
this
level
synthesis
remains
a
significant
challenge.
In
study,
highly
amorphous
RhRu
(a‐RhRu)
bimetallene
using
one‐pot
wet‐chemical
approach
is
presented.
The
introduction
structure
allows
for
optimization
electron
configurations
overall
a‐RhRu.
This
catalyst
demonstrates
exceptional
activity
alkaline
hydrogen
evolution
reaction,
with
low
overpotential
32
mV
at
10
mA
cm
−2
high
turnover
frequency
(TOF)
3.06
H
2
s
−1
an
50
mV,
surpassing
performance
most
reported
Rh‐based
electrocatalysts.
findings
underscore
potential
strategies
electrocatalysis.
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Янв. 8, 2025
Abstract
Microbatteries
(MBs)
are
crucial
to
power
miniaturized
devices
for
the
Internet
of
Things.
In
evolutionary
journey
MBs,
fabrication
technology
emerges
as
cornerstone,
guiding
intricacies
their
configuration
designs,
ensuring
precision,
and
facilitating
scalability
mass
production.
Photolithography
stands
out
an
ideal
technology,
leveraging
its
unparalleled
resolution,
exceptional
design
flexibility,
entrenched
position
within
mature
semiconductor
industry.
However,
comprehensive
reviews
on
application
in
MB
development
remain
scarce.
This
review
aims
bridge
that
gap
by
thoroughly
assessing
recent
status
promising
prospects
photolithographic
microfabrication
MBs.
Firstly,
we
delve
into
fundamental
principles
step-by-step
procedures
photolithography,
offering
a
nuanced
understanding
operational
mechanisms
criteria
photoresist
selection.
Subsequently,
highlighted
specific
roles
photolithography
including
utilization
template
creating
micropatterns,
protective
layer
during
etching
process,
mold
soft
lithography,
constituent
active
component,
sacrificial
construction
micro-Swiss-roll
structure.
Finally,
concludes
with
summary
key
challenges
future
perspectives
MBs
fabricated
providing
insights
sparking
research
inspiration
this
field.
Abstract
2D
materials
feature
large
specific
surface
areas
and
abundant
active
sites,
showing
great
potential
in
energy
storage
conversion.
However,
the
dense,
stacked
structure
severely
restricts
its
practical
application.
Inspired
by
of
bamboo
nature,
hollow
interior
porous
exterior
wall,
MXene
aerogel
fiber
(HA‐Ti
3
C
2
T
X
fiber)
is
proposed.
Owing
to
continuous
microstructure
optimized
cavity,
this
possesses
accessible
area
ions
structural
defects,
leading
a
fast
charge
transfer
kinetics
high
faradic
activity.
Consequently,
HA‐Ti
exhibits
exceptional
gravimetric
capacitance
355
F
g
−1
.
Besides,
solid‐state
asymmetric
fiber‐shaped
supercapacitors
(FSCs)
display
276
density
9.58
Wh
kg
Additionally,
delivers
outstanding
electromagnetic
wave
(EMW)
absorption
performance
with
minimum
reflection
loss
−52.39
dB
effective
bandwidth
up
4.6
GHz,
which
attributed
multiple
paths,
strong
dielectric
from
structure.
This
novel
design
provides
new
reference
for
construction
advanced
fibers
EMW
materials.
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Март 13, 2025
Abstract
Fiber-shaped
energy
storage
devices
(FSESDs)
with
exceptional
flexibility
for
wearable
power
sources
should
be
applied
solid
electrolytes
over
liquid
due
to
short
circuits
and
leakage
issue
during
deformation.
Among
the
options,
polymer
are
particularly
preferred
their
robustness
flexibility,
although
low
ionic
conductivity
remains
a
significant
challenge.
Here,
we
present
redox
electrolyte
(HT_RPE)
4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl
(HT)
as
multi-functional
additive.
HT
acts
plasticizer
that
transforms
glassy
state
into
rubbery
improved
chain
mobility
provides
distinctive
ion
conduction
pathway
by
self-exchange
reaction
between
radical
oxidized
species.
These
synergetic
effects
lead
high
(73.5
mS
cm
−1
)
based
on
lower
activation
of
0.13
eV
than
other
additives.
Moreover,
HT_RPE
pseudocapacitive
characteristic
enables
an
outstanding
electrochemical
performance
symmetric
FSESDs
using
carbon-based
fiber
electrodes
(energy
density
25.4
W
h
kg
at
25,000
without
typical
active
materials,
along
excellent
stability
(capacitance
retention
91.2%
after
8,000
bending
cycles).
This
work
highlights
versatile
utilizes
unique
functionality
both
capability,
providing
promising
next-generation
flexible
devices.
New Journal of Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
CMC/PAM/GO
hydrogel
enables
flexible
Zn–air
batteries
via
GO-enhanced
H-bonding/crosslinking.
With
350%
strain
and
71.6%
water
retention,
it
suppresses
dendrites/dehydration.
68.7
mW
cm
−2
(KI)
30
h
stability
(KCl)
for
wearables.